Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Social support and leisure-time physical activity: longitudinal evidence from the Brazilian Pró-Saúde cohort study. | Oliveira et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8 77 http content 8 1 77 INTERNATIONAL JOURNAL OF BEHAVIORAL NUTRITION AND PHYSICAL ACTIVITY RESEARCH Open Access Social support and leisure-time physical activity longitudinal evidence from the Brazilian Pró-Saúde cohort study 1 1 12 3 Aldair J Oliveira Claudia S Lopes Antônio C Ponce de Leon Mikael Rostila Rosane H Griep Guilherme L Werneck1 and Eduardo Faerstein1 Abstract Background Although social support has been observed to exert a beneficial influence on leisure-time physical activity LTPA multidimensional approaches examining social support and prospective evidence of its importance are scarce. The purpose of this study was to investigate how four dimensions of social support affect LTPA engagement maintenance type and time spent by adults during a two-year follow-up. Methods This paper reports on a longitudinal study of 3 253 non-faculty public employees at a university in Rio de Janeiro the Pró-Saúde study . LTPA was evaluated using a dichotomous question with a two-week reference period and further questions concerning LTPA type individual or group and time spent on the activity. Social support was measured by the Medical Outcomes Study Social Support Scale MOS-SSS . To assess the association between social support and LTPA two different statistical models were used binary and multinomial logistic regression models for dichotomous and polytomous outcomes respectively. Models were adjusted separately for those who began LTPA in the middle of the follow up engagement group and for those who had maintained LTPA since the beginning of the follow up maintenance group . Results After adjusting for confounders statistically significant associations p between dimensions of social support and group LTPA were found in the engagement group. Also the emotional information dimension was associated with time spent on LTPA OR 95 CI . In the .
