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Background: The rating of perceived exertion (RPE) is a readily available and practical tool widely used in exercise science to monitor exercise load, but a rigorous review of the effect of menstrual cycle (MC) phases on RPE within continuous aerobic exercise has not yet been completed. Objective: This study investigated the effects of the MC phase on RPE during aerobic exercise. Study Design: This was a systematic review and meta-analysis. Methods: The search strategy was carried out using the 5 most common scientific databases. While qualitative analyses were performed in all included studies, random effects to standard mean difference were calculated and meta-analysis was performed where possible. This study addresses comparison for RPE at the beginning, middle, and end of the exercise adopting 2 mains analysis. The first adopted early cycle (first session of the cycle) as control compared with the subsequent phases, and the second adopted days 1 to 5 (early follicular) as control compared with the subsequent phases. Results: A total of 17 studies (n = 160) were included in the qualitative synthesis. The meta-analysis showed that MC phases did not impact RPE (P > .05). Conclusions: The current meta-analysis showed that MC does not impact RPE. Although acute RPE is not impacted by MC phases, future studies and practitioners should pay attention to the impact of RPE session by session throughout the MC.

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The impact of social isolation in the pandemic context on elderly Brazilian mental health is little known, especially about the occurrence of depressive symptoms. In this study, we evaluated elderly people undergoing social isolation in order to identify factors associated with depression and which of these are more important to characterize elderly Brazilians with depression. In a cross-sectional, exploratory, and analytical study of a quantitative nature, the mental profile of elderly individuals subjected to social isolation during the COVID-19 pandemic period was used. A total of 450 participants was divided into normal and depressive groups, and a form covering sociodemographic data, opinions/perceptions about the pandemic, and a Reduced Geriatric Depression Scale was used to assess participants' mental health. To assess the statistical significance between the variables, chi-square test was applied, considering the p-value <0.05. The effect size was analyzed to identify the magnitude of the difference between groups. To identify the most important characteristics to define the groups Multilayer Perceptron algorithm were applied. We found that elderly people with a depressive profile are (in Multilayer Perceptron rank order) (1) showing signs of anxiety during the COVID-19 pandemic, (2) of low education, (3) being divorced, (4) having more than one mental disorder, (5) reading, watching, or listening to information about COVID-19, and (6) being previously diagnosed with depression. In conclusion, elderly Brazilians in social isolation tend to develop depressive disorders during quarantine. Thus, we can consider that the pandemic requires effective and safe gerontological care and monitoring, especially with regard to mental health.

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Abstract Background: Air pollution and sex independently affect cardiac autonomic control, which can be assessed by heart rate variability (HRV). The research hypothesis is that individuals exposed to low concentrations of pollution have higher cardiac autonomic modulation compared to those exposed to high concentrations and that women have better cardiac autonomic control than men. Objective: To analyze the impact of exposure to air pollutants, specifically smoke, and sex on HRV in healthy young people exposed to different concentrations of pollution over an average period of 22 years. Methods: From April to September 2011, 36 participants of both sexes (20-30 years old) were selected, grouped by levels of air pollution exposure according to indices provided by the Environmental Company of São Paulo State. The R-R intervals (R-Ri) of the electrocardiogram were captured using a heart rate monitor during supine rest. HRV was analyzed by spectral analysis and conditional entropy. The Queen's College step test was used to characterize functional capacity. A between-group comparison was performed using the two-way ANOVA statistical test (post hoc Tukey) and p<0.05. Results: Significant differences were found in mean R-Ri (p<0.01) and cardiac parasympathetic modulation between sexes in the same city (p=0.02) and between groups exposed to different air pollution concentrations (p<0.01). Conclusion: Our results suggest that long-term exposure to air pollutants, specifically smoke, has an unfavorable impact on HRV, with reduced cardiac vagal autonomic modulation in healthy young adults, especially females.

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The present systematic review and meta-analysis aimed to compare the impact of exercise intensity and mode (high-intensity interval exercise-HIIE or sprint interval exercise-SIE versus moderate-intensity continuous exercise-MICE) on post-exercise ad libitum energy intake. The studies were required to have at least two exercise conditions (HIIE or SIE vs MICE). Overall, 642 manuscripts were initially identified and 17 met the eligibility criteria. The random effect meta-analysis did not reveal differences for absolute energy intake (28 pairwise comparisons) between HIIE (p = 0.54; 95% Confidence Interval - CI: -0.14 to 0.26; 22 pairwise comparisons) or SIE (p = 0.08; 95% CI -0.65 to 0.03; 6 pairwise comparisons) versus MICE, neither for relative energy intake (p = 0.97; 95% CI: -0.35 to 0.10 for HIIE; p = 0.28; 95% CI: -1.03 to 0.06 for SIE) with five and one pairwise comparisons, respectively. Subgroup analyses for methods to evaluate ad libitum energy intake, body mass, sex, volume, and timing of exercise were non-significant. Inspecting each study, two pairwise comparisons reported lower post-exercise absolute energy intake in HIIE compared to control (CRTL), and three pairwise comparisons reported lower absolute energy intake after SIE compared to MICE. None pairwise comparison reported differences between protocols (HIIE or SIE versus MICE) for relative energy intake. In conclusion, the meta-analysis did not show differences between protocols for absolute and relative energy intake; five pairwise comparisons from 28 demonstrated lower absolute energy intake in HIIE or SIE compared to CRTL or MICE. Further studies are needed to address the key relevant variables in which exercise intensity and mode may impact energy intake.

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Interventions during prenatal care can mitigate negative outcomes of a sedentary lifestyle and unhealthy diet during pregnancy. We aimed to evaluate the effectiveness of an intervention that promoted healthy diet and leisure-time walking during antenatal care in a pragmatic, controlled, non-randomized intervention study. Physicians and nurses from all health care units of the Family Health Strategy model of health assistance participated in educational training to promote leisure-time walking and healthy diet during antenatal care visits. Pregnant women who received health care from these professionals constituted the intervention group (n = 181). The control group (n = 172) included pregnant women who received routine antenatal care, in health care units of the traditional model of health assistance. Data were collected in each trimester of pregnancy. Diet was investigated using a food frequency questionnaire adapted from Risk and Protective Factors Surveillance System for Chronic Non-Comunicable Diseases Through Telephone Interview (Vigitel). Leisure-time walking in a typical week was assessed using questions from the Physical Activity in Pregnancy Questionnaire. There were positive effects on leisure-time walking during the second trimester and the third trimester of pregnancy and on the women who achieved 150 minutes per week of walking during the third trimester. The intervention reduced the risk of pregnant women consuming soft drinks and/or commercially prepared cookies in the third trimester. This lifestyle intervention was partially effective, tripling the proportion of pregnant women who achieved the recommended walking time and reducing by half the proportion of women who had a high weekly consumption of soft drinks and industrially processed cookies.

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Given humans' limited ability to recall past experiences for evaluation, scholars have proposed the peak-end rule stating that if perceived discomfort at the end of an aversive experience is lower than the peak discomfort experienced, the aversive experience will be remembered more positively. The purpose of this study was to evaluate the peak-end rule as applied to high-intensity interval exercise (HIIE). Participants were 30 inactive men (M age = 27.9, SD = 5.2 years). In the first session they performed a graded exercise test on cycle-ergometer to determine their maximal aerobic power (MAP) (M = 233, SD = 35W); and, in the second and third sessions, they performed two HIIE protocols in randomized order: (a) Short trial - 20-minutes of HIIE, composed of 30-second efforts at 100% of MAP interspersed by 30-seconds of passive recovery; and (b) Long trial - 20-minutes of the short trial, plus 10-minutes more of HIIE, decreasing 3% of MAP in each additional bout, resulting in 70% of MAP in the last bout. During exercise, we recorded the participants' rating of perceived exertion (RPE) and affect, using the Feeling Scale (FS). At 30-minutes post-exercise, we again recorded the participants' affect, using the Global Affect Evaluation (GAE) and their session-RPE, and we recorded their enjoyment, using the Physical Activity Enjoyment Scale (PACES). In the last session, the participants chose a favorite protocol to repeat. All sessions were interspersed by at least 72 hours. The 10-minutes extra HIIE in the Long-trial condition resulted decreased heart rate values (M = 157, SD = 13bpm to M = 144, SD = 14bpm; p < 0.001), but psychological responses during and after exercise did not differ, nor did participants' preferred HIIE protocol. As the load drop for the Long-trial was not enough to change the psychological responses during exercise, there was no difference in the retrospective evaluation as the peak-end rule would have suggested.

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Abstract: Interventions during prenatal care can mitigate negative outcomes of a sedentary lifestyle and unhealthy diet during pregnancy. We aimed to evaluate the effectiveness of an intervention that promoted healthy diet and leisure-time walking during antenatal care in a pragmatic, controlled, non-randomized intervention study. Physicians and nurses from all health care units of the Family Health Strategy model of health assistance participated in educational training to promote leisure-time walking and healthy diet during antenatal care visits. Pregnant women who received health care from these professionals constituted the intervention group (n = 181). The control group (n = 172) included pregnant women who received routine antenatal care, in health care units of the traditional model of health assistance. Data were collected in each trimester of pregnancy. Diet was investigated using a food frequency questionnaire adapted from Risk and Protective Factors Surveillance System for Chronic Non-Comunicable Diseases Through Telephone Interview (Vigitel). Leisure-time walking in a typical week was assessed using questions from the Physical Activity in Pregnancy Questionnaire. There were positive effects on leisure-time walking during the second trimester and the third trimester of pregnancy and on the women who achieved 150 minutes per week of walking during the third trimester. The intervention reduced the risk of pregnant women consuming soft drinks and/or commercially prepared cookies in the third trimester. This lifestyle intervention was partially effective, tripling the proportion of pregnant women who achieved the recommended walking time and reducing by half the proportion of women who had a high weekly consumption of soft drinks and industrially processed cookies.

Resumo: As intervenções durante o acompanhamento pré-natal podem mitigar os desfechos negativos do sedentarismo e da dieta não saudável durante a gravidez. Os autores buscaram avaliar a efetividade de uma intervenção de promoção de dieta saudável e caminhadas no lazer durante o acompanhamento pré-natal, através de um estudo de intervenção pragmático, controlado, não-randomizado. Médicos e enfermeiros de todas as unidades da Estratégia Saúde da Família participaram da capacitação na promoção de caminhadas e diet saudável, como parte do acompanhamento pré-natal. O grupo da intervenção consistia em gestantes que receberam cuidados desses profissionais (n = 181). O grupo controle (n = 172) incluía as gestantes que recebiam os cuidados pré-natais usuais, nas unidades do modelo assistencial tradicional. Os dados eram coletados em cada trimestre da gestação. A dieta era investigada com um questionário de frequência alimentar, adaptado do Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico (Vigitel). As caminhadas no lazer em uma semana típica eram avaliadas com perguntas do Physical Activity in Pregnancy Questionnaire. Houve efeitos positivos sobre o tempo de caminhada no segundo e terceiro trimestres da gestação e nas mulheres que atingiam 150 minutos semanais de caminhadas no terceiro trimestre. A intervenção reduziu o risco de gestantes consumirem refrigerantes e/ou biscoitos industrializados no terceiro trimestre. A intervenção no estilo de vida foi parcialmente efetiva, triplicando a proporção de gestantes que atingiam o tempo recomendado de caminhada e reduzindo pela metade a proporção de mulheres com alto consumo semanal de refrigerantes e biscoitos industrializados.

Resumen: Las intervenciones durante el cuidado prenatal pueden mitigar los resultados negativos de un estilo de vida sedentario y una dieta insana durante el embarazo. Nuestro objetivo fue evaluar la efectividad de una intervención que promovió una dieta saludable y los paseos en el tiempo de ocio, durante el cuidado prenatal, en un estudio pragmático, controlado y de intervención no aleatoria. Médicos y enfermeras de todas las unidades de cuidado de la Estrategia de Salud de la Familia, modelo de asistencia a la salud, participaron en la formación educacional para promover los paseos durante el tiempo de ocio, así como una dieta saludable durante las visitas de cuidado prenatal. Las mujeres embarazadas que recibieron asistencia de estos profesionales constituyeron el grupo de intervención (n = 181). El grupo de control (n = 172) incluyó a mujeres embarazadas, con una rutina de cuidados prenatales, en unidades de atención del modelo tradicional de asistencia en salud. Los datos fueron recabados en cada trimestre de embarazo. La dieta fue investigada usando el cuestionario de frecuencia de comidas adaptado del Vigilancia de Factores de Riesgo y Protección para Enfermedades Crónicas No Transmisibles por Entrevista Telefónica (Vigitel). Los paseos en el tiempo de ocio en una semana típica se evaluaron usando preguntas del Physical Activity in Pregnancy Questionnaire. Hubo efectos positivos por los paseos durante el tiempo de ocio en el segundo y tercer trimestre de embarazo, así como en las mujeres que alcanzaron 150 minutos por semana de paseos durante el tercer trimestre. La intervención redujo el riesgo de mujeres embarazadas que consumían refrescos y/o galletas empaquetadas en el tercer trimestre. La intervención en el estilo de vida fue parcialmente efectiva, triplicando la proporción de mujeres embarazadas que lograron el tiempo de paseos recomendados y redujeron a la mitad la proporción de mujeres que tuvieron una alta frecuencia semanal de consumo de refrescos y galletas procesadas industrialmente.

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Franchini, E, Takito, MY, Alves, ED, Shiroma, SA, Julio, UF, and Humberstone, C. Effects of different fatigue levels on physiological responses and pacing in judo matches. J Strength Cond Res 33(3): 783-792, 2019-The objective of this study was to compare athletes' pacing during judo match simulation between different fatigue states. Twelve judo athletes (30.2 ± 3.2 years old, 85.6 ± 10.8 kg, 181.0 ± 5.7 cm, 19 ± 7 years of judo experience) completed three 4-minute matches against the same opponents, at 15-minute intervals in 3 different conditions: after warm-up (Control; C); after a regular training session (totaling 90 minutes); after a high-intensity interval exercise (2 blocks of 10 sets of 20-second all-out uchi-komi, with 10-second interval between sets and 5-minute interval between blocks). All matches were mediated according to the official rules, filmed, and analyzed concerning: rating of perceived recovery (RPR), rating of perceived exertion (RPE), heart rate (before and after match), blood lactate concentrations [La] before, peak after match and delta (peak minus the prematch values), and time-motion measures (frequencies and durations of actions). Time-motion measures included athlete displacement without contact, gripping, attack, feint, groundwork combat, pauses, and high- to low-intensity effort ratio. The experimental conditions resulted in different physiological and perceived responses prematch (HR, [La], RPR) and postmatch simulations (HR and [La]peak), with no change in RPE and few changes in technical variables. There was a decrease in grip dispute time, and increase in time of displacement without contact. These technical changes were enough to preserve the pace during the matches, which seemed to be controlled by the athletes to maintain their number of attacks, feints, and RPE.

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The aims of this study were to compare the maximal isometric handgrip strength of judo athletes from different weight categories and to create a classificatory table for this test. A total of 406 athletes had their maximal isometric handgrip strength measured, following standardized recommendations. Absolute and relative values were calculated for each hand and for the sum of both hands. Weight categories were compared through a one-way analysis of variance, followed by Tukey test. The effect size was determined by partial eta squared, and the relationship between variables was determined using Pearson correlation coefficient. There was a large effect of weight category in absolute handgrip strength for each hand and for the sum of both hands, with lower values for the lighter categories. Conversely, when the relative strength was considered higher values were found for the lighter categories (P<0.001). Very large and significant positive correlations (P<0.001) were found between right and left for absolute (r=0.886) and relative (r=0.883) handgrip values. Overall, there was an increase in absolute and a decrease in relative handgrip strength across weight categories. These differences found in grip strength in weight categories are probably linked to differences in muscle mass between them. There was a high correlation between each hand for absolute and relative values, which suggests that assessing only one hand may be enough, and therefore a faster way of evaluation. Finally, the normative classificatory table created may serve as a reference for different purposes.

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To compare the effects of 6 weeks of long or short high-intensity interval training (long- or short-HIIT) on body composition, hunger perception, food intake and rating of perceived exertion (RPE). Twenty previously untrained women (25±5 years) were randomly assigned to do a long-HIIT (n=10) or a short-HIIT (n=10). The long-HIIT group performed fifteen 1-min bouts at 90% of maximum heart rate (HRmax), interspersed by 30-sec active recovery (60% HRmax). The short-HIIT group performed forty-five 20-sec bouts at 90% of HRmax, interspersed by 10-sec active recovery (60% HRmax). The training for both groups was conducted 3 times a week for 6 weeks. All subjects performed the Astrand cycle ergometer test to estimate maximal oxygen consumption (VO2max) 1 week before and after the training period, as well as body composition, which was estimated through circumferences and skinfold thicknesses. For all training sessions, the heart rate, visual scale of hunger, internal load, and RPE were recorded. In the first and last week of training, subjects were asked to record a 24-hr food diary for 3 days. Both training induced significant pre to post decreases for fat mass, fat percentage, waist circumference, sum of seven skinfolds and RPE. As expected estimated, the VO2max increased in both groups. There were no differences for hunger perception, energy intake, and body mass. Long and short-HIIT resulted in fat loss, without altering the energy intake.

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The aim of present study was to compare blood lipid postprandial profile response in two modes of high-intensity intermittent exercise. Twelve individuals (6 men and 6 women) were submitted to a maximal incremental test (to determine maximal aerobic power [MAP] and V. O2peak [peak oxygen uptake]), high-intensity intermittent all-out exercise (60×8-sec bouts interspersed by 12-sec passive recovery) and fixed high-intensity intermittent exercise (100% maximal aerobic speed, consisted of 1-min repetitions at MAP [70 rpm] separated by 1-min of passive recovery). Blood samples were collected pre, immediately, 45 and 90-min postexercise. Serum was analyzed for total cholesterol and its ratio, high-density lipoprotein cholesterol (HDL-c), low-density lipoprotein cholesterol (LDL-c), very low-density lipoprotein (VLDL) cholesterol, and triacylglycerol (TAG). For TAG there was a main effect of moment with higher values immediately postexercise compared to 45-min postexercise. For VLDL there was a main effect to moment with higher values immediately post exercise than pre and 45-min postexercise; higher values 90-min postexercise than 45-min postexercise. There was no effect for HDL-c, LDL-c, and cholesterol. For area under the curve there was no difference for any variable. Our results indicated that both kinds of acute exercise session lead to no improvement in the acute response of serum lipid profile of healthy young.

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The aim of this study was to compare the effects of exercise intensity on appetite control: relative energy intake (energy intake minus the energy expenditure of exercise; REI), hunger scores, and appetite-regulating hormones in men and women. Eleven men and 9 women were submitted to 4 experimental sessions: high-intensity intermittent all-out exercise (HIIE-A) for 60 × 8 s interspersed by 12 s of passive recovery; high-intensity intermittent exercise (HIIE) at 100% of maximal load attained in incremental test; steady-state exercise at 60% of maximal load, matched by work done; and a control session. Exercise was performed 1.5 h after a standardized breakfast, and an ad libitum lunch was offered 4 h after breakfast. Blood concentration of insulin, cortisol, acylated ghrelin, peptideYY3-36, glucose, and hunger scores were measured when fasting, and at 1.5, 2, 3.25, and 4 h of experiment. REI was lower in all exercises than in the control, without differences between exercises and sex showing no compensation in energy intake because of any exercise; the hunger scores were lower only in the exercises performed at higher intensity (HIIE and HIIE-A) compared with the control. The area under the curve of acylated ghrelin was lower in the HIIE-A when compared with the control. PeptideYY3-36 was higher in men than women and cortisol higher in women than men independently of the condition. Although high-intensity exercises promoted a little more pronounced effects in the direction of suppressing the appetite, no differences were observed in REI, demonstrating that these modifications were not sufficient to affect energy intake.

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This study investigated the prevalence, magnitude, and methods of rap-id weight loss among male and female Taekwondo athletes from all competitive levels. A questionnaire was administered to 72 men (regional/state level, n=31; national/international level, n=41) and 44 women (regional/state level, n=9; national/international, n=35). Among the male athletes, 77.4% of the regional/state level and 75.6% of the national/international athletes declared to have reduced weight to compete in lighter weight categories. Among women, 88.9% of regional/state level and 88.6% of national/international level reported the use of rapid weight loss strategies. Athletes reported to usually lose ~3% of their body weight, with some athletes reaching ~7% of their body weight. The methods used to achieve weight loss are potentially dangerous to health and no difference between sexes was found. Four methods were more frequently used by men athletes in higher competitive levels as compared to lower levels, as follows: skipping meals (Z=2.28, P=0.023, η(2)=0.21), fasting (Z=2.337, P=0.019, η(2)=0.22), restricting fluids (Z=2.633, P=0.009, η(2)=0.24) and spitting (Z=2.363, P=0.018, η(2)=0.22). Taekwondo athletes lost ~3% of their body mass, using methods potentially dangerous for their health. Although no difference was found between sexes, lower level athletes more frequently used methods such as skipping meals, fasting, restricting fluids and spitting. Considering that these health-threating methods are more commonly used by lower level athletes, specific education programs should be directed to them.

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BACKGROUND: The knowledge and practices of health professionals have a recognized role in behaviors related to the health of their patients. During pregnancy, this influence can be even stronger because there is frequent contact between women and doctors/nurses at periodic antenatal visits. When trained, supported and motivated, these professionals can act as health promoters. This study aimed to evaluate the effect of a focused educational intervention on improving the knowledge and practices of health professionals concerning diet and physical activity during pregnancy. METHODS: A controlled, non-randomized study was performed to assess the effects of an educational intervention on the knowledge and practices of nurses and doctors who provide primary care to pregnant women. The intervention group, doctors and nurses (n = 22) from the family health units in a medium-sized city of São Paulo State, Brazil, received 16 h of training comprising an introductory course and three workshops, whereas the control group, doctors and nurses (n = 20) from traditional basic health units in Botucatu, did not. The professionals' knowledge was assessed at two time points, 1 month prior to and 1 year after the beginning of the intervention, using an ad hoc self-report questionnaire. The increases in the knowledge scores for walking and healthy eating of the intervention and control groups were calculated and compared using Student's t-test. To analyze the professionals' practice, women in the second trimester of pregnancy were asked whether they received guidance on healthy eating and leisure-time walking; 140 of these women were cared for by professionals in the intervention group, and 141 were cared for by professionals in the control group. The percentage of pregnant women in each group that received guidance was compared using the chi-square test and the Prevalence Ratio (PR), and the corresponding 95 % confidence intervals (CI) were calculated. RESULTS: The intervention improved the professionals' knowledge regarding leisure-time walking (92 % increase in the score, p < 0.001). The women who were cared for by the intervention group were more likely to receive guidance regarding leisure-time walking (PR = 2.65; 95 % CI = 1.82-3.83) and healthy eating (PR = 1.76; 95 % CI = 1.34-2.31) when compared to the control group. CONCLUSION: It is possible to improve the knowledge and practices of health professionals through the proposed intervention aimed at primary health care teams providing antenatal care.

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The main purpose of this study was to investigate the performance and energy systems contribution during four upper-body Wingate tests interspersed by 3-min intervals. Fourteen well-trained male adult Judo athletes voluntarily took part in the present study. These athletes were from state to national level, were in their competitive period, but not engaged in any weight loss procedure. Energy systems contributions were estimated using oxygen uptake and blood lactate measurements. The main results indicated that there was higher glycolytic contribution compared to oxidative (P<0.001) during bout 1, but lower glycolytic contribution was observed compared to the phosphagen system (adenosine triphosphate-creatine phosphate, ATP-PCr) contribution during bout 3 (P<0.001), lower glycolytic contribution compared to oxidative and ATP-PCr (P<0.001 for both comparisons) contributions during bout 4 and lower oxidative compared to ATP-PCr during bout 4 (P=0.040). For the energy system contribution across Wingate bouts, the ATP-PCr contribution during bout 1 was lower than that observed during bout 4 (P=0.005), and the glycolytic system presented higher percentage contribution in the first bout compared to the third and fourth bouts (P<0.001 for both comparisons), and higher percentage participation in the second compared to the fourth bout (P<0.001). These results suggest that absolute oxidative and ATP-PCr participations were kept constant across Wingate tests, but there was an increase in relative participation of ATP-PCr in bout 4 compared to bout 1, probably due to the partial phosphocreatine resynthesis during intervals and to the decreased glycolytic activity.

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Abstract The regular changes that occur during pregnancy increase energy expenditure at rest and during exercise. Prediction models are practical tools that facilitate the estimation of energy expenditure. The objective of this study was to analyze the reliability of prediction models of energy expenditure for pregnant women in two situations, at rest and during light-intensity exercise, compared to indirect calorimetry. Energy expenditure was measured in 10 pregnant women during the second trimester of gestation (23.5 ± 3.7 weeks) at rest and during light-intensity treadmill walking (4 km/h) using indirect calorimetry and the prediction models proposed by Hronek (rest) and Pivarnik (exercise). The intraclass correlation coefficient (ICC) and Bland-Altman plots were used for comparison of the methods. A low correlation was observed at rest and during exercise [ICC=0.531 (-0.185; 0.814) and ICC=0.124 (-1.213; 0.653), respectively]. At rest, daily energy expenditure tended to be overestimated with increasing indirect calorimetry values. During exercise, the equation tended to underestimate the energy expenditure of pregnant women as it increased. In conclusion, the prediction models analyzed showed a low correlation with indirect calorimetry, overestimating daily energy expenditure at rest and underestimating energy expenditure during light-intensity exercise. Thus, practical and low-cost tools such as predictive equations cannot always be used safely in professional practice and care should be taken to apply them to groups with altered physiological conditions, such as pregnant women.

Resumo As alterações naturais características da gestação resultam no aumento do gasto energético das mulheres, tanto durante o repouso quanto durante o exercício. As equações de predição surgem como ferramentas práticas para facilitar a estimativa desse dispêndio de energia, importante ao equilíbrio energético adequado e saudável deste período. O estudo teve como objetivo analisar a confiabilidade de equações de predição do gasto calórico desenvolvidas para gestantes no repouso e na atividade física de intensidade leve quando comparadas à calorimetria indireta. Obteve-se o gasto calórico de 10 mulheres no segundo trimestre gestacional (23.5±3.7 semanas), durante o repouso e na caminhada (4 km/h) por calorimetria indireta, comparando-o com o valor obtido nas equações de Hronek para o repouso, e de Pivarnik para a caminhada. Para a comparação, foi realizado o coeficiente de correlação intraclasse (CCI) e a análise gráfica de Bland & Altman. Observou-se baixa correlação tanto para o repouso (CCI=0.531[-0.185; 0.814]) quanto para o exercício (CCI=0.124[-1.213; 0.653]). No repouso, houve tendência de superestimar o dispêndio energético diário conforme aumentaram os valores obtidos pela calorimetria indireta. No exercício, a tendência da equação foi de subestimar o gasto calórico da gestante conforme ele aumentava. Concluiu-se que as equações de predição analisadas apresentaram baixa correlação com a calorimetria indireta, superestimando o dispêndio energético diário no repouso e subestimando o custo calórico na caminhada. Assim, nem sempre ferramentas práticas e baratas como as equações preditivas podem ser utilizadas na prática profissional com segurança. Deve-se ter cuidado ao empregá-las, especialmente, para grupos com condições fisiológicas alteradas, como as gestantes.

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O objetivo do presente estudo é analisar a associação entre as recomendações recebidas durante o atendimento pré-natal com a prática de atividade física na gestação. Trata-se de um estudo transversal com 290 puérperas. Apenas 9% das mulheres atingiam a recomendação (≥150 minutos) de atividade física semanal para manutenção da saúde e 18% praticaram alguma atividade física no lazer (AFL)/exercício físico na gestação. A prática de atividade física anterior à gestação estava associada ao nível de AFL. Adicionalmente, a percepção da presença de recomendação do profissional para a prática de AFL no pré-natal triplicou a chance da mulher ser ativa, ainda que não suficientemente ativa. Ações junto aos profissionais de saúde podem promover modificações no nível de AFL durante a gestação.

The aim of this study is to analyze the association between the recommendations received during the prenatal care with the practice of physical activity during pregnancy. This is a cross-sectional study of 290 postpartum women. Only 9% of women reached the recommendation (≥150 minutes) of weekly physical activity for health maintenance and 18% practiced some physical activity in leisure (LPA) / exercise during pregnancy. The practice of previous physical activity before pregnancy was associated with LPA level. In addition, the perception of professional recommendation of presence to the practice of LPA in the prenatal tripled the chance of women being active, although not sufficiently active. Actions with health professionals can promote changes in LPA level during pregnancy.

El objetivo es analizar la asociación entre las recomendaciones durante la atención prenatal y la práctica de la actividad física durante el embarazo. Este estudio transversal con 290 mujeres en el posparto. Sólo 9% de las mujeres llegó a la recomendación (≥150 minutos) de actividad física semanal para mantener la salud y el 18% practico alguna actividad física en el tiempo libre (LPA)/ejercicio durante el embarazo. La práctica de actividad física previa antes del embarazo se asoció con la LPA. Además, la percepción de la recomendación profesional para LPA en el prenatal se triplicó la probabilidad de que las mujeres ser activa, aunque no suficientemente activa. Acciones con profesionales de la salud pueden promover cambios en el nivel LPA durante el embarazo.

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This study compared the anthropometrical characteristics in judo athletes of different weight categories. The sample was composed by 104 Brazilian male judo athletes of national/international level from all seven official weight categories: extra-lightweight (-60 kg; n = 16), half-lightweight (-66 kg; n = 12), lightweight (-73 kg; n = 24), half-middleweight (-81 kg; n = 25), middleweight (-90 kg; n = 15), half-heavyweight (-100 kg; n = 7) and heavyweight (+100 kg; n = 5). The following anthropometric measurements were carried out: body mass, height, skinfold thickness (triceps, subscapular, suprailiac, abdominal, front thigh, and medial calf), circumferences (chest, relaxed arm, flexed arm, forearm, wrist, proximal thigh, medial calf and ankle) and breadth (humerus and femur epicondyles, biacromial, chest, chest depth, and biliocristal). The somatotypes for seven weight categories were calculated with three-dimensional approach. An one-way analysis of variance and Tukey test were used to compare groups concerning normally distributed data, while the Kruskal-Wallis test was used for non-normally distributed data (P<0.05). The main results of the present study were: (1) height differed across non subsequent weight categories, except for the difference between -60 kg and -66 kg; (2) for all the skinfold thickness the four lightest categories did not differ among them, and the +100kg group presented higher values compared to all other weight categories; (3) for most of the circumferences the -60 kg and -66 kg groups presented lower values compared to the three heaviest weight categories (-90 kg, -100 kg and +100 kg); (4) somatotype categories were similar in the three lightest groups (-60 kg, -66 kg, -73kg), while the heaviest category differed from all other groups; (5) most of the differences among groups appeared in the bone breadth measurements. Thus, the main differences between weight categories are the bone breadths and circumferences, whilst height and skinfold thickness are variables that differ mainly between heavier and lighter categories.

Este estudio comparó las características antropométricas de atletas de judo de diferentes categoríasde peso. La muestra estuvo compuesta por 104 judocas hombres brasileños de nivel nacional/internacional de las siete categorías oficiales de peso: superligero (-60 kg; n = 16), semiligero (-66 kg; n= 12), ligero (-73 kg; n= 24), semimedio (-81 kg; n= 25), medio (-90 kg; n= 15), semipesado (-100 kg; n= 7) y pesado (+100 kg; n= 5). Se tomaron lassiguientesmedidasantropométricas: masa corporal, estatura, pliegues cutáneos (tríceps, subescapular, suprailíaco, abdominal, muslo frontal y pierna medial), circunferencias (pecho, brazo relajado, brazo contraído, antebrazo, muñeca, muslo proximal, pantorrilla y tobillo) y diámetros óseos (húmero y fémur, biacromial, pecho, profundidad del pecho y biliocristal). El somatotipo de los grupos de las siete categorías de peso secalculó mediante el método de tres dimensiones. Se utilizó unanálisis unidireccional de varianza y la prueba de Tukey para comparar los gruposen aquellos datos distribuidos normalmente, mientras quese utilizo la prueba de Kruskal-Wallis en aquellos datos que no siguieron una distribución normal (P<0,05). Los principales resultados obtenidos fueron: (1) la altura difería en las categorías de pesono consecutivas, excepto entre las categorías de -60 kg y -66 kg; (2) los pliegues cutâneos de las cuatro categorías más ligeras no difirieron entre ellos, y el grupo de +100 kg presentó los valores más altos en comparación conlas demás categorías de peso; (3) en la mayoría de circunferencias, los grupos de -60 kg y -66 kg presentaronvalores más bajos en comparación con las tres categorías de mayor peso (-90 kg, -100 kg and +100 kg); (4) las categorías de somatotipo fueron similares en los tres grupos más ligeros (-60 kg, -66 kg,-73 kg), mientras que la categoría más pesada difirió del resto de grupos; (5) la mayor parte de las diferencias entre los grupos se localizaron en los diámetros óseos. En conclusión, las principales diferencias entre las categorías de pesofueron los diámetros óseos y las circunferencias, mientras que la altura y espesor de los pliegues cutáneos variaron principalmente entre las categorías más ligeras y pesadas.

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OBJETIVO Analisar o padrão de atividade física de gestantes de baixo risco e os fatores associados. MÉTODOS Estudo transversal com 256 gestantes adultas no segundo trimestre gestacional, sorteadas dentre as assistidas pelas unidades de atenção primária à saúde do município de Botucatu, SP, em 2010. As atividades físicas foram investigadas por meio do “pregnancy physical activity questionnaire”, verificando-se tempo e intensidade de atividades ocupacionais, de deslocamento, domésticas e de lazer, expressos em equivalentes metabólicos dia. As gestantes foram classificadas segundo nível de atividade e em relação a atingir 150 min/semana de atividades físicas de lazer, variáveis dependentes do estudo. A associação entre essas variáveis e as socioeconômicas, características maternas, fatores comportamentais e modelo de atenção da unidade de saúde foi avaliada mediante modelos de regressão de Poisson com variância robusta, adotando-se modelo hierárquico. RESULTADOS A maior parte das gestantes era insuficientemente ativa (77,7%), 12,5% moderadamente ativa e 9,8% vigorosamente ativa. Os maiores gastos diários de energia foram com atividades domésticas, seguidas pelas atividades de locomoção; 10,2% atingiram a recomendação de 150 min semanais de atividades físicas de lazer. Trabalho fora de casa reduziu a chance de atingir essa recomendação (RP = 0,39, IC95% 0,16;0,93). Ter tido pelo menos um parto anterior (RP = 0,87, IC95% 0,77;0,99) e excesso ponderal pré-gestacional (RP = 0,85, IC95% 0,731;0,99) reduziram a chance de ser insuficientemente ativa, enquanto consumir menos alimentos saudáveis teve aumento discreto (RP = 1,18, IC95% 1,02;1,36). CONCLUSÕES Gestantes assistidas na atenção primária à saúde são ...

OBJETIVO Analizar el patrón de actividad física de gestantes de bajo riesgo y los factores asociados. MÉTODOS Estudio transversal con 256 gestantes adultas en el segundo trimestre de gestación, sorteadas entre las atendidas por las unidades de asistencia primaria de la salud del municipio de Botucatu, SP, Brasil, en 2010. Las actividades físicas fueron investigadas por medio del “pregnancy physical activity questionnaire”, verificándose tiempo e intensidad de actividades ocupacionales, de traslado, domésticas y de disfrute, expresados en equivalentes metabólicos por día. Las gestantes fueron clasificadas según nivel de actividad y si alcanzaron 150 min/semana de actividades físicas de disfrute, variables dependientes del estudio. La asociación entre las variables y las socioeconómicas, características maternas, factores conductuales y modelo de atención de la unidad de salud fue evaluada mediante modelos de regresión de Poisson con varianza robusta, adoptándose modelo jerárquico. RESULTADOS La mayor parte de las gestantes era insuficientemente activa (77,7%); 12,5% moderadamente activa y 9,8% vigorosamente activa. Los mayores gastos diarios de energía fueron con actividades domésticas, seguidas por las actividades de locomoción; 10,2% alcanzaron la recomendación de 150 min semanales de actividades físicas de disfrute. Trabajo fuera de casa redujo el chance de alcanzar esa recomendación (RP= 0,39, IC95% 0,16;0,93). Haber tenido por lo menos un parto anterior (RP= 0,87, IC95% 0,77;0,99) y exceso ponderado pre-gestacional (RP= 0,85, IC95% 0,731;0,99) redujeron el chance de ser insuficientemente activa, mientras que consumir menos alimentos saludables tubo un aumento discreto (RP=1,18, IC95% 1,02;1,36). CONCLUSIONES Gestantes atendidas en la asistencia primaria de la salud son insuficientemente activas. ...

OBJECTIVE To describe physical-activity patterns of low-risk pregnant women and investigate associated factors. METHODS This is a cross-sectional study based on a sample (n = 256) of adult pregnant women in their 2ndtrimester. The participants were randomly selected among those attending primary health care units in Botucatu in Sao Paulo State in 2010. Physical activities were investigated by using the pregnancy physical activity questionnaire and by analyzing the time and intensity of the following activities: occupational, commuting, household and leisure, expressed in metabolic equivalents/day. The pregnant women were classified according to their level of physical activity and to achieving 150 minutes/week of leisure physical activities, which were the dependent variables in the study. The association between such variables and socioeconomic variables, maternal characteristics, behavioral factors and the care model in the health care unit was evaluated by Poisson regression models with robust variance and by adopting the hierarchical model. RESULTS Most pregnant women were insufficiently active (77.7%); 12.5% were moderately active and 9.8% were vigorously active. The highest daily energy expenditure was in carrying out household activities, followed by commuting activities. Only 10.2% of them followed the recommendation, successfully achieving 150 minutes of leisure physical activities per week. Having a job outside of the home reduced the chance of achieving such recommendation (OR = 0.39, 95%CI 0.16;0.93). Having at least one previous delivery (OR = 0.87, 95%CI 0.77;0.99) and being overweight pre-pregnancy (OR = 0.85, 95%CI 0.731;0.99) reduced the chance of being insufficiently active whereas consuming healthy foods less frequently slightly increased it: OR = 1.18, 95%CI 1.02;1.36. CONCLUSIONS Pregnant women who were cared for in primary health care units were insufficiently active. Having at least one previous delivery ...

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