RESUMEN
da Silva, DF, Ferraro, ZM, Adamo, KB, and Machado, FA. Endurance running training individually guided by HRV in untrained women. J Strength Cond Res 33(3): 736-746, 2019-The aim of this study was to analyze the effects of heart rate variability (HRV)-guided training compared with a standardized prescription on (a) time to complete 5-km running performance (t5km), (b) peak treadmill running speed (Vpeak) and its time limit (tlim at Vpeak), and (c) autonomic cardiac modulation (i.e., parasympathetic activity and recovery) in untrained women. Additionally, we correlated changes in t5km with changes in Vpeak, tlim at Vpeak and autonomic cardiac modulation. Thirty-six untrained women were divided into a HRV-guided training group (HRVG) and a control group (CG). The CG followed a predefined program, alternating moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT). The determination of MICT or HIIT was based on the pretraining HRV for HRVG. MICT was performed if HRV was Asunto(s)
Sistema Nervioso Autónomo/fisiología
, Frecuencia Cardíaca/fisiología
, Entrenamiento de Intervalos de Alta Intensidad/métodos
, Carrera/fisiología
, Adolescente
, Adulto
, Prueba de Esfuerzo
, Femenino
, Humanos
, Factores de Tiempo
, Adulto Joven
RESUMEN
To propose a response criterion for analyzing the intervention success by verifying patient outcomes after a multidisciplinary obesity treatment program in Brazilian children and adolescents. Obese children and adolescents (n = 103) completed a 16-week multidisciplinary intervention (IG) and were compared to the control group (CG) (n = 66). A cluster of parameters (e.g. total domain of HRQoL; BMI z-score; cardiorespiratory fitness; body mass; waist circumference; fat mass; lean mass) were measured pre and post-intervention, and the sum of the median percentage variation and the percentile 25 and 75 were used from IG and CG to determine the responsiveness to the program. We are proposing four ranges in which children and adolescents may be classified after the intervention: (1) CG percentile 50 values or lower are considered non-responsive to the intervention, (2) values greater than CG percentile 50 but lower than IG percentile 50 are considered slightly responsive, (3) values greater than IG percentile 50 but lower than IG percentile 75 were considered as moderately responsive, and (4) values greater than IG percentile 75 were considered very responsive. CONCLUSIONS: This criterion may serve as a complementary tool that can be employed to monitor the response to this model of multidisciplinary intervention. What is Known: ⢠The effectiveness of multidisciplinary obesity interventions is usually determined by comparing changes in selected outcomes in the intervention versus versus control group. ⢠There is no consensus about what should be assessed before and after the intervention program, which makes difficult to compare different programs and to determine their rate of responsiveness. What is New: ⢠This study proposes a response criteria to pediatric obesity interventions following a similar model compared to ours based on key variables that presents low cost and high applicability in different settings.
Asunto(s)
Evaluación de Resultado en la Atención de Salud/métodos , Obesidad Infantil/terapia , Programas de Reducción de Peso , Adolescente , Brasil , Niño , Terapia Combinada , Femenino , Estudios de Seguimiento , Humanos , MasculinoRESUMEN
The obesity epidemic is a global challenge that requires evidence-based intervention to slow the emergence of weight-related illness in children and adolescents. Thus, effective treatments are urgently needed. This study aimed to analyze whether there is relationship between the initial stage of readiness for behavior change (SRBC) and the results obtained through participation in a multidisciplinary program of obesity treatment (MPOT). The study included 113 overweight or obese children and adolescents who participated in an intervention for 16 weeks, in which the categorical variable was the SRBC. The dependent variables included: anthropometric measures of body composition, hemodynamic parameters (e.g., blood pressure values), and health-related physical fitness. Although stages 1 and 2 had greater improvements in flexibility than those in stage 5, and stage 1 had greater percentage changes in abdominal strength than those in stage 5, children and adolescents in the highest stage had greater percentage changes for anthropometric, hemodynamic and cardiorespiratory fitness, suggesting an impact of the stage of change on the effects of a MPOT. This study suggests that SRBC plays a role in obesity treatment in Brazilian children and adolescents and warrants consideration when enrolling patients to intervention.