Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 21
Filtrar
1.
PeerJ ; 12: e17576, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39071136

RESUMO

Breast cancer is the most common cancer in women worldwide, and its treatment usually involves a combination of many medical procedures, including surgery, chemotherapy, radiotherapy, and hormonal therapy. One of the detrimental effects on physical function is reduced upper limb muscle strength. This study aimed to evaluate upper body strength intra-day and inter-day (test-retest) reliability using the handgrip strength test (HGS) and the bilateral isometric bench press (BIBP) and the test-retest reliability of the one repetition maximum on the bench press (BP-1RM) in breast cancer survivors (BCS). Thirty-two (52.94 ± 8.99 yrs) BCS participated in this study. The muscle strength tests were performed in two different moments, three to seven days apart. Intraclass coefficient correlation (ICC) and coefficient of variation (CV) were used to assess the reliability. Standard error of measurement (SEM), typical error of measurement (TEM), and minimally detectable change (MDC) analyses were performed. The Bland-Altman analysis was used to assess the agreement between test-retest. We found a reliability that can be described as "high" to "very high" (ICC ≥ 0.88; CV ≤ 10%) for intra-day and test-retest. SEM% and MDC% were lower than 5% and 11%, respectively, for all intra-day testing. SEM% and TEM% ranged from 3% to 11%, and MDC% ranged from 9% to 23% in the test-retest reliability. The agreement demonstrated a systematic bias ranging from 2.3% to 6.0% for all testing, and a lower systematic bias may be presented in the non-treated side assessed by HGS and BIBP. HGS, BIBP, and BP-1RM assessments are reliable for measuring upper-body muscle strength in BCS.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Força da Mão , Força Muscular , Humanos , Feminino , Reprodutibilidade dos Testes , Pessoa de Meia-Idade , Força Muscular/fisiologia , Força da Mão/fisiologia , Adulto , Contração Isométrica/fisiologia , Extremidade Superior/fisiopatologia
2.
Am J Cancer Res ; 14(2): 762-773, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38455416

RESUMO

Evidences on the effects of chemotherapy treatment cycles on measures of muscle, mental state, social and cognitive performance are scarce. The objective of this study was to analyze the effects of chemotherapy cycles on muscle strength and activation, functional capacity, quality of life, fatigue and anxiety of women with breast cancer. Therefore, twenty-two women divided into a treatment group (n = 10; 46.6 ± 9.6 years) and control group (n = 12; 51.6 ± 7.0 years) participated in the study. Analysis of muscle performance, quality of life, fatigue and anxiety after the 2nd and 4th cycle of chemotherapy with anthracyclines were performed in women with breast cancer (TRA) and compared to healthy women (CTR). Two-way ANOVA was used to compare the variance of the means and the significance level was set as P≤0.05. The results showed Differences in the muscular activation of the vastus mediallis between the groups at post time (P = 0.038), as well as in the sit and stand test in the baseline (P<0.001) and post moment (P<0.001). Functional capacity performance was different between baseline (P<0.001) and post-time (P<0.001) groups. Additionally, the TRA group worsened the quality of life in the domains of functional capacity (P<0.001) and limitation of physical aspects (P = 0.002), besides presenting negative changes in fatigue. Thus, anthracycline chemotherapy cycles reduce muscular performance and affect biopsychosocial variables in women with breast cancer.

3.
São Paulo med. j ; São Paulo med. j;142(2): e2022643, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1450516

RESUMO

ABSTRACT BACKGROUND: Nutritional status and growth curves can affect cognitive development, increase the risk of infection, and contribute to the development of chronic diseases. Its etiology is related to food, socioeconomic, and maternal conditions. However, to date, no data on these parameters exist in the state of Goiás, Brazil. OBJECTIVE: To compare the nutritional status and growth curves of children and adolescents in the city of Goiânia, Goiás, Brazil. DESIGN AND SETTING: This was a cross-sectional study. A total of 529 individuals were recruited from a primary health center in the municipality. METHODS: To assess nutritional status, the sample was divided into three categories: 3-4, 5-10, and 11-19 years, with z-score classification considering body mass index for age. The classification of growth curves was performed considering the median height values for age, assuming two references: (a) young Brazilian population and (b) one recommended for international use. The independent sample T-test was used to compare anthropometric variables. RESULTS: The results showed that the classification of eutrophics represents a predominant percentage between both sexes (men: 03-04 = 55.4%; 05-10 = 57.6%; 11-19 = 53.5 % and women: 03-04 = 53.5%; 05-10 = 63.9%; 11-19 = 56.9%), and growth curves showed differences in specific periods in both sexes. CONCLUSIONS: It can be concluded that children and adolescents from the city of Goiânia present as predominance the eutrophic nutritional status, followed by the risk of overweight, underweight, obesity, and malnutrition of both sexes.

4.
Sao Paulo Med J ; 142(2): e2022643, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37556682

RESUMO

BACKGROUND: Nutritional status and growth curves can affect cognitive development, increase the risk of infection, and contribute to the development of chronic diseases. Its etiology is related to food, socioeconomic, and maternal conditions. However, to date, no data on these parameters exist in the state of Goiás, Brazil. OBJECTIVE: To compare the nutritional status and growth curves of children and adolescents in the city of Goiânia, Goiás, Brazil. DESIGN AND SETTING: This was a cross-sectional study. A total of 529 individuals were recruited from a primary health center in the municipality. METHODS: To assess nutritional status, the sample was divided into three categories: 3-4, 5-10, and 11-19 years, with z-score classification considering body mass index for age. The classification of growth curves was performed considering the median height values for age, assuming two references: (a) young Brazilian population and (b) one recommended for international use. The independent sample T-test was used to compare anthropometric variables. RESULTS: The results showed that the classification of eutrophics represents a predominant percentage between both sexes (men: 03-04 = 55.4%; 05-10 = 57.6%; 11-19 = 53.5 % and women: 03-04 = 53.5%; 05-10 = 63.9%; 11-19 = 56.9%), and growth curves showed differences in specific periods in both sexes. CONCLUSIONS: It can be concluded that children and adolescents from the city of Goiânia present as predominance the eutrophic nutritional status, followed by the risk of overweight, underweight, obesity, and malnutrition of both sexes.


Assuntos
Estado Nutricional , Sobrepeso , Masculino , Humanos , Criança , Feminino , Adolescente , Brasil/epidemiologia , Estudos Transversais , Índice de Massa Corporal , Sobrepeso/epidemiologia
5.
Oncol Rev ; 16(1): 552, 2022 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-35432780

RESUMO

Some studies have addressed the prevalence of human papillomavirus (HPV) in head and neck cancer in South America; however, no studies have systematically gathered prevalence and conducted a meta-analysis. This study aims to estimate the prevalence of HPV in oral and oropharyngeal squamous cell carcinomas in South America. We performed a systematic review and metaanalysis using the following databases: PubMed, Embase, Lilacs, Medline, Scopus, and Web of Science. Data were extracted and analyzed using random-effects models to estimate the pooled prevalence of HPV. We identified 209 nonduplicated studies, of which 38 were selected. The overall prevalence of HPV was 24.31% (95% CI 16.87-32.64; I2 = 96%, p heterogeneity <0.001). HPV prevalence in oropharyngeal cancer was 17.9% (95% CI 7.6-31.4; I2 = 96%, p heterogeneity <0.001) and that in oral cavity cancer was 23.19% (95% CI 14.94-32.63; I2 = 94%, p heterogeneity <0.001). We found an overall prevalence of HPV in 24.31% of oral and oropharyngeal squamous cell carcinomas in South American patients. The prevalence of HPV was 17.9% for oropharyngeal cancer and 23.19% for oral cavity cancer.

6.
Biology (Basel) ; 11(1)2022 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-35053064

RESUMO

Different exercise models have been used in patients with type 2 diabetes mellitus (T2D), like moderate intensity continuous training (MICT) and high intensity interval training (HIIT); however, their effects on autonomic modulation are unknown. The present study aimed to compare the effects of different exercise modes on autonomic modulation in patients with T2D. In total, 44 adults with >5 years of T2D diagnosis were recruited and stratified into three groups: HIIT-30:30 (n = 15, age 59.13 ± 5.57 years) that performed 20 repetitions of 30 s at 100% of VO2peak with passive recovery, HIIT-2:2 (n = 14, age 61.20 ± 2.88) that performed 5 repetitions of 2 min at 100% of VO2peak with passive recovery, and MICT (n = 15, age 58.50 ± 5.26) that performed 14 min of continuous exercise at 70% of VO2peak. All participants underwent anamnesis and evaluation of cardiorespiratory fitness and cardiac autonomic modulation. All protocols were equated by total distance and were performed two times per week for 8 weeks. Group × time interactions were observed for resting heart rate (HRrest) [F(2.82) = 3.641; p = 0.031] and SDNN [F(2.82) = 3.462; p = 0.036]. Only the HIIT-30:30 group significantly reduced SDNN (p = 0.002 and 0.025, respectively). HRrest reduced more in the HIIT-30:30 group compared with the MICT group (p = 0.038). Group × time interactions were also observed for offTAU [F(2.82) = 3.146; p = 0.048] and offTMR [F(2.82) = 4.424; p = 0.015]. The MICT group presented increased values of offTAU compared with the HIIT-30:30 and HIIT-2:2 groups (p = 0.001 and 0.013, respectively), representing a slower HR response after eight weeks of intervention. HIIT, specially HIIT-30:30, represents a promising measure for improving autonomic modulation in patients with T2D.

7.
Rev. eletrônica enferm ; 24: 1-11, 18 jan. 2022.
Artigo em Inglês, Português | LILACS, BDENF - Enfermagem | ID: biblio-1411227

RESUMO

Objetivo: avaliar a presença de biofilme nas películas de smartphones de profissionais da saúde, investigar o padrão de uso e de descontaminação dos smartphones no ambiente de assistência à saúde em um hospital de médio porte. Métodos: estudo analítico e transversal, realizado com profissionais de saúde que possuíam smartphone. Foram realizadas entrevistas estruturadas e a presença de biofilme nas películas de vidro dos smartphones foi avaliada pela microscopia eletrônica de varredura. Resultados: todas as amostras de películas foram positivas para presença de biofilme, mesmo após descontaminação com álcool a 70%. Dos participantes, 96,4% utilizavam smartphone no ambiente de trabalho, a maioria utilizava o aparelho para fins pessoais e descontaminavam com álcool a 70% com frequência irregular. Conclusões: o smartphone pode servir como fômite, visto que biofilmes foram detectados na superfície das películas. Esses achados apontam para a necessidade de políticas de controle de infecção relacionadas ao uso dos smartphones.


Objective: to evaluate the presence of biofilm on the protective glass films of smartphones of health professionals, to investigate the pattern of use and decontamination of smartphones in the health care environment of a medium-sized hospital. Methods: analytical and cross-sectional study, carried out with health professionals with smartphones. Structured interviews were carried out and the presence of biofilm on the protective glass films of smartphones was evaluated by scanning electron microscopy. Results: all film samples were positive for the presence of biofilm, even after decontamination with alcohol 70%. 96.4% of the participants used a smartphone in the work environment, most used the device for personal purposes and decontaminated it with alcohol 70% with irregular frequency. Conclusion(s): the smartphones can serve as a fomite, considering that biofilms were detected on the surface of the films. These findings point to the need for infection control policies related to the use of smartphones.


Assuntos
Contaminação de Equipamentos/prevenção & controle , Controle de Infecções , Pessoal de Saúde
8.
J Strength Cond Res ; 35(5): 1350-1356, 2021 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-33677463

RESUMO

ABSTRACT: Moraes, RF, Ferreira-Júnior, JB, Marques, VA, Vieira, A, Lira, CAB, Campos, MH, Freitas-Junior, R, Rahal, RMS, Gentil, P, and Vieira, CA. Resistance training, fatigue, quality of life, anxiety in breast cancer survivors. J Strength Cond Res 35(5): 1350-1356, 2021-Resistance training (RT) has shown to be effective in improving fatigue, quality of life (QOL), and anxiety levels among breast cancer survivors (BCS), but there is no consensus as to how this practice should be prescribed for optimal performance. This study analyses the effects of once weekly RT on fatigue, QOL, and anxiety levels among BCS. Randomized controlled trial. Twenty-five BCS (aged 54.6 ± 5.5 years) were randomized into RT or control groups. The RT group performed 8 weeks of RT (once per week). Fatigue was assessed using the Piper Fatigue scale, QOL was assessed using the SF-36, and anxiety was assessed using the STAI State-Trait Anxiety Inventory. Resistance training significantly improved the following subscales of SF-36: aspects of physical functioning (+27%, p = 0.027); physical role functioning (+54%, p = 0.008); emotional role functioning (+42%, p = 0.027); and mental health (+16%, p = 0.032). Furthermore, RT improved fatigue levels (-55%, p = 0.001 for general fatigue) and anxiety (anxiety state, -19%, p = 0.012; anxiety trait, -23%, p = 0.001). Resistance training seemed to be a positive nonpharmacological tool for the reduction of fatigue, anxiety, and for improvement of several aspects of QOL in BCS.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Treinamento Resistido , Ansiedade/etiologia , Neoplasias da Mama/complicações , Fadiga/etiologia , Humanos , Pessoa de Meia-Idade , Qualidade de Vida
9.
Front Psychiatry ; 12: 787822, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35418881

RESUMO

Objectives: To identify psychosocial and motor aspects related to joint hypermobility (JH) in a sample from almost all Brazilian states by age range and sex; to characterize JH by the Beighton total score ≥4, ≥5, and ≥6 according to sex and age and atypicality in the sitting position and in the hands; identify, in the total sample, manifestations of "growing pain" and its location, fatigue, attention deficit, anxiety, insomnia, drowsiness, apathy, depression, delay in walking, not crawling or crawling differently, school performance, spatial orientation and/or temporally impaired, social isolation, and being stigmatized as "lazy/clumsy/apathetic". Methods: This retrospective, observational, quantitative, and cross-sectional study used data obtained through analyses of descriptive and inferential crossings between 2012 and 2020 of 482 medical records of individuals between 1 and 76 years of age, from most Brazilian states. All patients previously diagnosed with "joint hypermobility syndrome" (JHS) and "Ehlers-Danlos syndrome hypermobility type" (EDS-HT) had their medical records reassessed, following the guidelines established in 2017. The analysis of GJH was performed using the updated method by Beighton method; atypical characteristics were investigated in the hands and the ability to sit in the "W" and the "concave" positions. The characteristics and manifestations of "growing pain" and its location were analyzed in the total sample, fatigue, insomnia, drowsiness, apathy, depression, social isolation, attention deficit, anxiety, stigmatization as "lazy," clumsy/restless, impaired school performance, and spatial and/or temporal orientation. Descriptive and inferential statistical methods were used, such as Mean, Median, Mode, Standard Deviation, Standard Error, Maximum Value, Minimum Value, Komolgorov-Smirnov, Significance, Relative Value, Absolute Value, Mann-Whitney U, and Correlation of Spearman. Results: JH in the total sample predominated in the upper limbs, the majority were women, represented by 352 (73.02%), 15 years old or older with 322 (66.80%), 312 (64.73%) had a Beighton total score ≥6, which decreased as the age increased. Always sitting in the "concave" position was represented by 54.15% and the ability to sit in the "W" position by 39.21%; signs on the hands totaled between 27.59 and 44.19% with a significant correlation between the variables. Among the characteristics, fatigue predominated, followed by an awkward/clumsy/restless individual, attention deficit, anxiety and stigmatized as "lazy," insomnia, drowsiness, apathy, depression, impaired spatial and/or temporal orientation, and social isolation. From the total sample, pain in the lower limbs was reported by 55.81% and having or having had "growing pain" was reported by 36.93%, delay in walking occurred in 19.92%, 15.35% did not crawl or crawled differently, and for 12.86%, school performance was impaired. Higher Beighton total scores showed a trend towards motor implications and correlation between variables. Ability to still sit in the "concave" position was possible for 54.15% and to sit in the "W" position for 39.21%. Conclusion: In the total sample, the JH characteristic prevails in the upper limbs of female children, adolescents and adults, with a total Beighton score ≥6. Most sit in the "concave" position and less than half also sit in the "W" position and with atypical hand postures. The higher Beighton scores, which include the upper limbs, show a tendency to not crawl or crawl differently, delayed ambulation, and impaired school performance. The predominance of JH in the upper limbs is suggestive of a justification for not crawling or crawling differently. Characteristics of atypical motor performance in hands and sitting posture, in addition to fatigue, pain since childhood, anxiety, apathy, depression, sleep disorders, stigmatization, attention deficit, spatial and/or temporal orientation impairment, and social isolation are characteristics. suggestive of psychosocial implications at different ages. Future studies with motor and psychosocial aspects of people with JH will help to identify the phenotype of this population and consequent guidance for clinical management based on the motor and psychosocial aspects of people with JH.

10.
Artigo em Inglês | MEDLINE | ID: mdl-33036182

RESUMO

The study aimed to evaluate the effects of chemotherapy treatment on muscle strength, quality of life, fatigue, and anxiety in women with breast cancer. Nineteen women who were undergoing a chemotherapy treatment (breast cancer treatment [BCT] group, 52.2 ± 13.1 years) and 18 women without cancer (control [CNT] group, 55.8 ± 8.4 years) answered questionnaires for evaluation of fatigue (Fatigue Scale), quality of life (Short-Form Healthy Survey [SF-36] questionnaire), and anxiety (State-Trait Anxiety Inventory [IDATE]) levels. Muscle strength was also assessed by an isometric grip test and an isokinetic knee extension test. Physical limitations, social and emotional domains of quality of life were lower in the BCT group in comparison to the CNT group (p = 0.002; p = 0.003; p = 0.0003, respectively). The other domains did not differ between groups (p > 0.05). There were no differences in fatigue and anxiety levels between both the BCT and CNT groups (p > 0.05). Additionally, isometric grip strength was higher in the CNT group when compared to the BCT group (p = 0.048). However, there were no differences between the BCT and CNT groups for peak torque and total work at both 60°.s-1 (p = 0.95 and p = 0.61, respectively) and 180°.s-1 (p = 0.94 and p = 0.72, respectively). These results suggest that three cycles of chemotherapy treatment may impair handgrip isometric strength and quality of life in women with breast cancer.


Assuntos
Neoplasias da Mama , Tratamento Farmacológico , Fadiga , Qualidade de Vida , Ansiedade , Feminino , Força da Mão , Humanos , Força Muscular , Mulheres
11.
An Acad Bras Cienc ; 92(2): e20190449, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32785443

RESUMO

This study compares the prevalence of overweight and obesity between WHO/IOTF criteria. A total of 17,277 Portuguese children aged 3-10 years old were analysed. The prevalences of overweight-obesity were higher at WHO classification (19.8%-20.7%) than at IOTF classification (8.2%-16.1%), (p<0.001). Agreement between the criteria were substantial for overweight (Kappa= 0.67, p<0.001) and moderate for obesity (Kappa= 0.47, p<0.001). The prevalences ratio for inequality between criteria were greater for boys than for girls and lesser for children aged 6-7 than children aged 8-10 years old. The disparities between the two criteria and the higher overweight obesity prevalences highlight the needs to develop more studies.


Assuntos
Obesidade , Sobrepeso , Índice de Massa Corporal , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Obesidade/epidemiologia , Sobrepeso/epidemiologia , Prevalência , Organização Mundial da Saúde
12.
Am J Hum Biol ; 32(6): e23400, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32027073

RESUMO

OBJECTIVES: The environment is believed to be key in obesity prevention, yet it is unclear how factors in the neighborhood influence weight-related behaviors. The present study aimed to investigate the influence of parental perceived environment on physical activity (PA), television (TV) time, active play and Body Mass Index (BMI) z score, and the mediating role of these weight-related behaviors on the relationship between neighborhood characteristics and children's BMI. METHODS: Data of 8472 Portuguese preschool (aged 3-6, n = 3819) and school-aged children (aged 7-11 years, n = 4653) were collected during 2016/2017. Structural equation modeling was used to estimate the associations between parents perceived neighborhood characteristics (latent variables: unsafety and built/physical environment) and child's BMI z score, PA and TV time. RESULTS: Among preschoolers, the latent variables of the perceived environment were not associated with the BMI, TV time, extracurricular PA, and active play. Among schoolchildren, the unsafety environment was positively associated with both the BMI (SC = 0.050, P = .008) and the time spent watching TV (SC = 0.052, P = .031) and negatively associated with extracurricular PA (SC = -0.125, P < .001). The latent variable Favorable Built Environment for PA (ie, environmental facilitating elements) was positively associated with active play (SC = 0.041, P = .031). Moreover, the TV time was a marginally significant mediator of the relationship between the perceived unsafe environment and the BMI of school-aged children (B = 0.002, P = .096). CONCLUSIONS: In conclusion, changes in the environment to targeting parental perception of neighborhood safety could have positive effects on the promotion of healthy weight and the adoption of a healthy lifestyle in school-aged children.


Assuntos
Índice de Massa Corporal , Exercício Físico , Pais , Jogos e Brinquedos , Meio Social , Televisão/estatística & dados numéricos , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Portugal
13.
Sports (Basel) ; 7(2)2019 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-30759740

RESUMO

This study aimed to compare the anthropometric profile and physical fitness of young judo and wrestling athletes. Twenty-four young athletes (judo (n = 13) and wrestling (n = 11)) participated in this study. The first visit involved anthropometric and flexibility evaluation, abdominal endurance test, upper limbs resistance and cardiorespiratory test. After 48 h, horizontal jump test (HJT), vertical jump test (VJT), medicine ball throw test (MBT), chin-up test (CUT), chin-up isometric test (CUIT) and the anaerobic resistance test were performed. Judo athletes presented greater values for body mass (p = 0.020), height (p = 0.010), and body mass index (p = 0.026) than wrestlers. Judo athletes also performed better for abdominal endurance (p = 0.044), upper limb resistance tests (p < 0.001), VJT (p = 0.022) and MBT (p = 0.023) than wrestling athletes. These results suggest that young judo athletes presented a higher performance in abdominal endurance, upper limbs resistance, HJT, VJT and MBT than wrestling athletes, suggesting that strength and conditioning are related to modality specificity.

14.
PeerJ ; 6: e4851, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29844991

RESUMO

BACKGROUND: Among combat sports, Judo and Brazilian Jiu-Jitsu (BJJ) present elevated physical fitness demands from the high-intensity intermittent efforts. However, information regarding how metabolic and neuromuscular physical fitness is associated with technical-tactical performance in Judo and BJJ fights is not available. This study aimed to relate indicators of physical fitness with combat performance variables in Judo and BJJ. METHODS: The sample consisted of Judo (n = 16) and BJJ (n = 24) male athletes. At the first meeting, the physical tests were applied and, in the second, simulated fights were performed for later notational analysis. RESULTS: The main findings indicate: (i) high reproducibility of the proposed instrument and protocol used for notational analysis in a mobile device; (ii) differences in the technical-tactical and time-motion patterns between modalities; (iii) performance-related variables are different in Judo and BJJ; and (iv) regression models based on metabolic fitness variables may account for up to 53% of the variances in technical-tactical and/or time-motion variables in Judo and up to 31% in BJJ, whereas neuromuscular fitness models can reach values up to 44 and 73% of prediction in Judo and BJJ, respectively. When all components are combined, they can explain up to 90% of high intensity actions in Judo. DISCUSSION: In conclusion, performance prediction models in simulated combat indicate that anaerobic, aerobic and neuromuscular fitness variables contribute to explain time-motion variables associated with high intensity and technical-tactical variables in Judo and BJJ fights.

15.
Appl Physiol Nutr Metab ; 43(8): 833-837, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29562142

RESUMO

The purpose of the present study was to evaluate the changes in movement velocity during resistance training with different loads while the trainees attempted to move the load at a predetermined repetition duration. Twenty-one resistance-trained men (age: 25.7 ± 5 years; height: 177.0 ± 7.2 cm; mass: 85.4 ± 13.56 kg) volunteered to participate in the study. Participants performed 2 test sessions. The first to determine 1-repetition maximum (1RM) load, and the second to evaluate velocity loss during a set to failure performed at 75% and 50% of 1RM using a 2-s concentric and 2-s eccentric repetition duration, controlled by a mobile app metronome. When using 75% 1RM there was a significant loss of movement velocity between the antepenultimate and the penultimate repetition (5.33%, p < 0.05), as well as during the penultimate and the last (22.11%, p < 0.05). At 50% of 1RM the participants performed the set until momentary failure without significant velocity loss. Monitoring velocity loss during high-load resistance training through simple methods can be an important tool for standardize the intensity of effort employed during submaximal training. This can be useful in clinical conditions where maximum exertions are contraindicated or when specific logistics are lacking.


Assuntos
Movimento , Contração Muscular , Fadiga Muscular , Força Muscular , Músculo Esquelético/fisiologia , Treinamento Resistido , Adulto , Humanos , Hipertrofia , Masculino , Fatores de Tempo , Suporte de Carga , Adulto Jovem
16.
Nutrire Rev. Soc. Bras. Aliment. Nutr ; 42: 1-10, Dec. 2017. tab
Artigo em Inglês | LILACS | ID: biblio-881056

RESUMO

BACKGROUND: This study evaluated the association between lifestyle-related behavior patterns and weight status indicators in schoolchildren. METHODS: Cross-sectional study includes nationally representative sample of Portuguese school children (6­9yearsold;n= 10,258). Weight status was assessed using the body mass index (BMI) and waist circumference (WC). Principal component analysis was used to identify lifestyle-related behavior patterns. Multiple linear regression models were used to estimate the association between behavior patterns, BMI, and WC.RESULTS: Six lifestyle-related behavior patterns were identified: pattern 1: consuming iced tea and soft drinks≥2 times/week, having a television (TV) in the bedroom, watching TV≥2 h/day, and consuming <2 portions of fruits/day; pattern 2: parents and children remaining physically inactive during leisure time; pattern 3: consuming≤1 portion of vegetables and milk/day; pattern 4: having parents with excess weight; pattern 5: consuming≤3daily meals and skipping breakfast; and pattern 6: not participating in physical education classes. After the adjustment, all of the patterns were associated with increased BMIz-score (P≤0.02) and WC (P≤0.03).CONCLUSIONS: Lifestyle-related behavior patterns were associated with an increased risk of excess weight and the central distribution of body fat. Taking a public health perspective toward preventing childhood obesity, special attention should be given to identify subgroups with simultaneous occurrence of multiple risk behaviors, which is useful for planning prevention programs.


Assuntos
Humanos , Masculino , Feminino , Criança , Comportamento Alimentar , Obesidade Infantil , Promoção da Saúde , Comportamento de Redução do Risco
17.
Br J Radiol ; 90(1074): 20160805, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28467109

RESUMO

OBJECTIVE: To improve the technique for hepatic blood flow examination, with the objective of investigating the role for Doppler flowmetry of the liver in monitoring pregnant females with pre-eclampsia. METHODS: Two physicians independently examined a group of 50 healthy pregnant females. The main difference in the proposed technique is the measurement of the vessel cross-sectional area and the adjustment of the Doppler samples according to the diameter of each vessel. The portal vein was studied by using two approaches: in the epigastrium, to measure the diameter, and in the intercostal, for Doppler sample collection. The common hepatic artery was studied by using the epigastric approach. The average of three measurements of each vessel, in each subject, with intrarater and interrater agreements, was compared. RESULTS: The intraclass correlation coefficient for the intrarater flow measurements of the hepatic artery and portal vein ranged from 0.98 to 0.99 (p < 0.0001). The intraclass correlation coefficients for the interrater flow measurements was 0.93 for the flow of the portal vein (p < 0.0001), 0.94 for the flow of the hepatic artery (p < 0.0001) and 0.96 for the measurement of the portal vein diameter (p < 0.0001). CONCLUSION: The new technique for evaluation of blood flow to the liver displayed excellent reproducibility, possibly because of the adjustment of the Doppler samples according to the diameter of each vessel. Advances in knowledge: This approach will add reliability to the method. It opens a vast field of investigation given the importance of liver vascular lesions in pre-eclampsia.


Assuntos
Fígado/irrigação sanguínea , Fígado/diagnóstico por imagem , Gravidez , Ultrassonografia Doppler , Velocidade do Fluxo Sanguíneo/fisiologia , Feminino , Hemodinâmica/fisiologia , Humanos , Interpretação de Imagem Assistida por Computador , Reprodutibilidade dos Testes
18.
Nutrire Rev. Soc. Bras. Aliment. Nutr ; 41: 1-10, Dec. 2016. tab
Artigo em Inglês | LILACS | ID: biblio-880600

RESUMO

BACKGROUND: Skipping meals, especially breakfast, is related to an increase in adiposity indicators, and this behavior is related to metabolic changes that predispose to the development of chronic diseases, recognized as major causes of death worldwide. The objective of the present paper was estimated the association between irregular breakfast habits with adiposity indices in schoolchildren and other lifestyle factors. METHODS: A population-based cross-sectional study was conducted in 2009­2010, including schoolchildren (n=10,243) between 6 and 9 years old (51.3 % girls) from 18 districts of mainland Portugal. Breakfast habits were as certained by asking a yes/no question ("Does your child eat breakfast regularly?"). An index estimated by performing principal component analysis was used to assess body adiposity from three different adiposity indicators (body mass index (BMI), waist circumference (WC), and the triceps, subscapular, and supra iliac skinfolds (used to estimate body fat percentage (BFP))). Multivariate logistic regression and multiple linear regression models were used to estimate the association of irregular breakfast habits with anthropometric indicators (BMI, BMI z score, WC, BFP, and adiposity index) and with children's and parents' lifestyle and socioeconomic characteristics. RESULTS: A total of 3.5 % of the children did not have breakfast regularly (girls 3.9 %; boys 3.1 %; P= 0.02). Among boys, irregular breakfast habits were associated with lower fathers' education level, television time≥2 h/day, and soft drink consumption≥2 times/week. For girls, irregular breakfast habits were associated with lower mothers' education level and physical inactivity, soft drink consumption≥2 times/week, and <1 portion of milk/day. Multivariate linear models revealed a positive association between irregular breakfast habits with increased adiposity indicators among boys (BMI (kg/m2):ß= 1.33; BMI z score:ß= 0.48; WC (cm):ß= 2.00; BFP (%):ß= 2.20; adiposity index:ß= 0.37;P< 0.01 for all). No significant association was found for girls. CONCLUSIONS: Irregular breakfast habits were positively associated with boys' increased global adiposity and were significantly affected by children's and parents' lifestyle-related behaviors.


Assuntos
Humanos , Masculino , Feminino , Criança , Tecido Adiposo/crescimento & desenvolvimento , Desjejum , Comportamento Alimentar/fisiologia
19.
Femina ; 43(6): 245-249, nov.-dez. 2015.
Artigo em Português | LILACS | ID: lil-771222

RESUMO

O fígado está entre os múltiplos órgãos que podem ser afetados na pré-eclâmpsia, e a função hepática pode ser gravemente prejudicada na síndrome HELLP. A ultrassonografia com Doppler constitui um método não invasivo que pode ser usado para o estudo da circulação hepática durante a gravidez. Com o objetivo de apresentar as evidências científicas disponíveis sobre as alterações do fluxo hepático na gravidez, foi realizada pesquisa da literatura mundial por meio das bases de dados MEDLINE/PubMed e LILACS. Em estudos de Dopplerfluxometria e Dopplervelocimetria, isoladamente ou associados ao eletrocardiograma e cardiografia por impedância, foram observadas alterações na circulação hepática durante a gravidez complicada por pré?eclâmpsia e síndrome HELLP. Entre os desafios para a pesquisa nesse campo destacamos a necessidade de aperfeiçoamento da técnica de exame, o estabelecimento de curvas de normalidade para as gestantes brasileiras, de indicadores de agravamento da pré?eclâmpsia e a aplicação potencial do método para o estudo da hipertensão crônica na gravidez.(AU)


The liver is among multiple organs that may be affected in pre-eclampsia, and liver function can be impaired in HELLP syndrome. Doppler ultrasonography of the liver provides a noninvasive method to study liver circulation during pregnancy. This paper reviews scientific evidence available in MEDLINE/ Pubmed and LILACS databases. Doppler studies on hepatic blood flow, flow velocities and vascular resistance indices, isolated or combined with Doppler?electrocardiography and impedance cardiography, observed changes in pregnancies complicated by pre?eclampsia and HELLP syndrome. Challenges to this research topic include improvements in Doppler examination techniques, establishment of normal values for Brazilian pregnant women, predictors for severe pre?eclampsia and potential use of hepatic Doppler use in chronic hypertension as well.(AU)


Assuntos
Humanos , Feminino , Gravidez , Pré-Eclâmpsia/diagnóstico por imagem , Síndrome HELLP/prevenção & controle , Síndrome HELLP/diagnóstico por imagem , Ultrassonografia Doppler/métodos , Sistema Porta/diagnóstico por imagem , Complicações na Gravidez/diagnóstico por imagem , Bases de Dados Bibliográficas , Hipertensão Induzida pela Gravidez/prevenção & controle , Artéria Hepática/diagnóstico por imagem , Fígado/fisiopatologia , Circulação Hepática/fisiologia
20.
Rev. bras. educ. méd ; 36(1,supl.2): 147-151, jan.-mar. 2012.
Artigo em Português | LILACS | ID: lil-646847

RESUMO

Este trabalho relata a experiência de integração ensino-serviço-comunidade vivenciada por membros de equipes de Saúde da Família e graduandos de Medicina e Enfermagem participantes do PET-Saúde da Universidade Estadual de Santa Cruz. A referida integração contextualizou-se com o desenvolvimento do projeto "Unidos contra a dengue", mobilização conjunta da instituição de ensino com o serviço de saúde e a comunidade no combate à dengue no bairro Nossa Senhora da Vitória, Ilhéus-Bahia. O foco das ações desse projeto foram as atividades de educação em saúde, nas quais se empregou preferencialmente metodologias ativas de ensino e aprendizagem. A mobilização contou com a participação expressiva da população das mais diversas faixas etárias. O sucesso do projeto ressalta a importância da implantação de programas como o PET-Saúde, que fortalecem a interação entre ensino-serviço-comunidade - importante para construção de serviços de saúde mais qualificados, capazes de inter-relacionar promoção, prevenção e assistência à saúde, possibilitando ações nessa área mais próximas das reais necessidades do SUS. Com esta experiência, espera-se ter contribuído para a formação de graduandos em saúde e qualificação em serviço de profissionais dessa área mais dispostos a trabalhar de forma integrada e integradora com a comunidade.


This study reports on a practical experience with the integration between learning, services, and the community including members of family health teams and undergraduate medical and nursing students participating in the Educational Program for Health Work (PET-Saúde) at Santa Cruz State University. The integration took place within the context of the project "United Against Dengue", an integrated mobilization of the teaching institution, health services, and community in the fight against dengue fever in the district of Nossa Senhora da Vitória, Ilhéus, Bahia State. The projects focused on health education activities, especially with active teaching and learning methods. The mobilization included a significant range of age groups. The project's success emphasizes the importance of implementing programs such as PET-Saúde that strengthen the interaction between learning, services, and the community, important for developing more qualified health services with the capacity to interrelate health promotion, prevention, and healthcare, fostering health activities more in line with the needs of the Unified National Health System (SUS). This experience aims to contribute to the qualification and training of health professionals and students that are willing to work in an integrated and integrating approach with the community.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA