Fatores associados à aderência em programa comunitário de atividade física em uma capital brasileira / Factors associated with adherence to the physical activity program in a Brazilian capital

Este trabalho tem como objetivo analisar os fatores associados à aderência em um Programa Comu-nitário de Atividade Física de uma capital do nordeste brasileiro. Trata-se de uma coorte retrospec-tiva, de base populacional. Foram analisados 2.616 registros de participantes, relacionando tempo de adesão à dezesseis covariáveis referente a dados sociodemográficos, estilo de vida, percepção de saúde e doenças referidas por diagnóstico clínico, entre 2004 e 2009. Foi utilizado estimador de sobrevida não-paramétrico Kaplan-Meier para caracterizar o grupo e estimar a aderência e o teste de logrank para comparar as categorias de cada covariável, utilizando p ≤ 0,20. Foram inseridas no modelo final de Cox àquelas que apresentaram valor de p ≤ 0,05, determinando a Razão de Chance (OR) da ade-rência com um intervalo de confiança de 95%. As análises foram realizadas no SPSS for Windows ® versão 22. Foi observado 97,4% casos de desistência e 2,6% de censura. Mantiveram chances de aderência "grupamento etário de 35-59 anos de idade" (OR = 1,839; IC95%: 1,625 ­ 2,083), "60 anos de idade ou mais" (OR = 1,197; IC95%: 1,080 ­ 1,325) e "estresse" (OR = 1,087; IC95%: 1,004 ­ 1,178). Apresentaram menores chances de aderência indivíduos que relataram lombalgia (OR = 0,887; IC95%: 0,810 ­ 0,972) e aqueles com renda entre um e três salários mínimos mensais (OR = 0,751; IC95%: 0,596 - 0,961). Assim, verifica-se baixa aderência nos primeiros meses de participação, em que adultos, idosos e participantes com estresse apresentam maiores chances de aderência, ao contrário dos lombálgicos e indivíduos menos abastados

This study aims to analyze the factors associated with adherence to a Community Physical Activity Program in a Brazilian northeastern capital. This is a retrospective, population-based cohort. We analyzed 2,616 participant records, relating adherence time to sixteen covariates related to sociodemographic data, life-style, health perception and diseases reported by clinical diagnosis, between 2004 and 2009. Kaplan-Meier non-parametric survival estimator was used to characterize the group and estimate adherence, and the logrank test was used to compare the categories of each covariate, using p ≤ 0.20. Those with a p value ≤ 0.05 were entered into the final Cox model, determining the odds ratio (OR) of adherence with a 95% confidence interval. The analyses were performed in SPSS for Windows ® version 22. 97.4% dropout cases and 2.6% censoring cases were observed. The odds of adherence were maintained for "age group 35-59 years" (OR = 1.839; 95%CI: 1.625 - 2.083), "60 years of age or older" (OR = 1.197; 95%CI: 1.080 - 1.325) and "stress" (OR = 1.087; 95%CI: 1.004 - 1.178). Individuals who reported low back pain (OR = 0.887; 95%CI: 0.810 - 0.972) and those with income between one and three minimum wages per month (OR = 0.751; 95%CI: 0.596 - 0.961) had lower odds of adherence. Thus, there is low adherence in the first months of participation, in which adults, the elderly, and participants with stress have a higher chance of adherence, unlike those with low back pain and less affluent individuals

Influence of antihypertensive pharmacological treatment on the acute cardiovascular responses to the resistance exercise in hypertensive middle-aged women

Abstract Aim: To investigate the hypothesis that the resistance exercise (RE) may be safer if the blood pressure (BP) is properly controlled through antihypertensive pharmacological treatment in hypertensive middle-aged women. Methods: The final sample was comprised of 19 hypertensive women, with an average age of 58±5 years and a body mass index of 29±5 Kg/m2. They were divided into three groups: controlled (n=6), uncompensated (n=8), and untreated (n=5). The subjects from all groups were submitted to a test of maximal strength on extensor chair and held a session of RE (knee extension, 3x12 to 60% 1RM) and the cardiovascular response (BP and heart rate) was monitored continuously by photoplethysmography during exercise and until five minutes after exercise (recovery). Results: Systolic BP (SBP) and diastolic BP (DBP) responses were lower in the controlled group compared to the other groups (p<0.05). The heart rate was not different between groups, while the double product was lower in the controlled group compared to the untreated group (p<0.05). The SBP and DBP peaks were lower in the controlled group compared to the other groups (p<0.05). Conclusion: The BP increases significantly during RE when the hypertension is not controlled. Pharmacological control was shown to be effective in preventing the increase of BP during the performance of the RE.