Authors: Brien, Susan E.; Katzmarzyk, Peter T.

Source: Applied Physiology, Nutrition, and Metabolism, Volume 31, Number 1, February 2006 , pp. 40-47(8)

Publisher: NRC Research Press

Abstract:

The metabolic syndrome (MetS) is a cluster of risk factors that predispose individuals to cardiovascular disease. Therapeutic lifestyle changes, including increased physical activity, are recommended for the prevention and treatment of MetS. The purpose of this study was to examine the relationship between physical activity and MetS in Canada. The sample included 6406 men and 6475 women aged 18–64 y who were participants in the Canadian Heart Health Surveys (1986–1992). MetS was classified using criteria modified from the US National Cholesterol Education Program. Participants were deemed physically active if they were active at least once each week for at least 30 min, engaging in strenuous activity some of the time. The relationship between physical activity and MetS was assessed using logistic regression, with age, smoking, alcohol consumption, and income adequacy as covariates. A total of 14.4% of Canadians had MetS and 33.6% were physically active. The odds ratio for MetS was 0.73 (95% confidence interval (CI): 0.54–0.98; p < 0.05) for physically active vs. physically inactive participants. The corresponding odds ratios were 0.45 (95% CI: 0.29–0.69; p < 0.001) and 0.67 (95% CI: 0.44–1.02; p = 0.06) for men and women, respectively. In summary, physical activity was associated with lower odds of MetS, particularly in men. Further research is required to determine the effectiveness of physical activity in the treatment of MetS.Key words: metabolic syndrome, physical activity, Canadian Heart Health Surveys.

Le syndrome métabolique (MetS) se définit comme une combinaison de facteurs augmentant les risques de maladie cardiovasculaire. Dans la prévention et le traitement du MetS, il est recommandé d'adopter de saines habitudes de vie, notamment l'inclusion de l'activité physique régulière. Cette étude se propose d'examiner la relation entre l'activité physique et le MetS au Canada. L'échantillon comprend 6475 femmes et 6406 hommes âgés de 18 à 64 ans qui ont participé aux Enquêtes canadiennes sur la santé (1986-1992). Le syndrome est établi selon les critères adaptés du US National Cholesterol Education Program. On classe les participants comme actifs s'ils pratiquent de l'activité physique au moins 1 fois par semaine pour une durée égale ou supérieure à 30 min incluant occasionnellement des efforts vigoureux. La relation entre l'activité physique et le MetS est établie par régression logistique avec l'âge, le tabac, la consommation d'alcool et le revenu comme covariables. L'échantillon comprend 14,4 % de Canadiens présentant le syndrome (MetS) et 33,6 % sont physiquement actifs. Les rapports de cote (en anglais, odd ratios) sont 0,73 [95 % IC: 0,54-0,98; p < 0,05] chez les individus physiquement actifs comparativement aux inactifs. Ces cotes sont de 0,45 [95 % IC: 0,29-0,69; p < 0,001] et 0,67 [95 % IC: 0,44-1,02; p = 0,06] chez les hommes et chez les femmes, respectivement. En résumé, l'activité physique est associée à un plus faible risque de MetS, particulièrement chez les hommes. D'autres études sont nécessaires pour bien établir l'efficacité de l'activité physique dans le traitement du MetS.Mots clés : syndrome métabolique, activité physique, enquêtes canadiennes sur la santé.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2006-02-01

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• This bimonthly journal has a 30-year history of publishing, first as the Canadian Journal of Sport Sciences, and later as the Canadian Journal of Applied Physiology. It publishes original research articles, reviews, and commentaries, focussing on the application of physiology, nutrition, and metabolism to the study of human health, physical activity, and fitness. The published research, reviews, and symposia will be of interest to exercise physiologists, physical fitness and exercise rehabilitation specialists, public health and health care professionals, as well as basic and applied physiologists, nutritionists, and biochemists.
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