Efeito da sazonalidade nos níveis de atividade física em adultos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

There are no consistent findings about the effect of weather and season changes on the physical activity levels. We conducted a study to evaluate seasonal effects on physical activity levels among adults living in Porto Alegre and metropolitan region, Southern Brazil. The study design was longitudinal with a convenience sample of 120 adults, aged 20 to 69. Visits were carried out in two periods of the year 2007: summer and winter. Physical activity was evaluated using the leisure-time and transport-related physical activity sections of the International Physical Activity Questionnaire (IPAQ). Socioeconomic and demographic characteristics were obtained by standardized questionnaires. Analyses were stratified by gender, age, education, socioeconomic and Body Mass Index (BMI). A total of 120 people were interviewed, 71% were women. Most people (59%) were in the 20-40 years age group, 61% had more than 12 years of education and belonged to A and B socioeconomic levels (83%). Overweight / normal weight ratio was 1:2.5. Median values of PAL were compared between the two seasons using Sign test. McNemar test was used for physical activity as dichotomous. 38% of subjects were classified as inactive during summer compared to 50% during winter (p= 0.06). PAL-Total Leisure-Time median values were higher in summer compared to winter (410 vs. 210 MET-min/wk) (p=0.02). Subjects with 9 to 11 years of education and belonging to economic status B were more likely to decrease PAL in winter comparing to summer. Higher reductions in physical activity from summer to winter were observed among men and older subjects (41 to 69 years) for PAL-Total, and among overweight subjects for PAL-leisure-time, 412, 498, and 438 MET-min/wk, respectively. Our findings showed a tendency to decrease on physical activity levels during winter compared to summer, specially, in PAL-Total leisure-time.

ASSUNTO(S)

atividade física ipaq saude coletiva physical activity efeito sazonal seasonal effects

ACESSO AO ARTIGO

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