| Titre : | Influence of exercise, walking, cycling, and overall nonexercise physical activity on mortality in Chinese women. Commentary and Authors'reply. (2007) |
| Auteurs : | Charles-E MATTHEWS ; Yu-Tang GAO ; . GONG YANG ; JURJ (Adriana-L) : USA. Department of Epidemiology and Biostatistics. Norman J Arnold School of Public Health. University of South Carolina. Columbia. SC. ; Hong-Lan LI ; . QI LI ; SESSO (Howard-D) / disc. : USA. Divisions of Preventive Medicine and Aging. Department of Medicine. Brigham and Women's Hospital and Harvard Medical School. Boston. MA. ; Xiao-Ou SHU ; . WEI ZHENG ; Vanderbilt University Medical School. Vanderbilt Epidemiology Center. Division of General Internal Medicine and Public Health. Department of Medicine. Nashville. TN. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 165, n° 12, 2007) |
| Pagination : | 1343-1355 |
| Langues: | Anglais |
| Mots-clés : | Tumeur ; Activité physique ; Mortalité ; Epidémiologie ; Chine ; Asie ; Femme ; Homme ; Appareil circulatoire [pathologie] ; Activité ; Locomotion |
| Résumé : | [BDSP. Notice produite par INIST-CNRS OtR0xuTR. Diffusion soumise à autorisation]. This investigation described the effects of exercise, walking, and cycling for transportation, as well as the effect of overall nonexercise physical activity, on mortality in the Shanghai Women's Health Study (1997-2004). Women without heart disease, stroke, or cancer were followed for an average of 5.7 years (n=67,143), and there were 1,091 deaths from all causes, 537 deaths from cancer, and 251 deaths from cardiovascular diseases. Information about physical activity and relevant covariates was obtained by interview. Proportional hazards models were used to estimate adjusted hazard ratios and 95% confidence intervals. Exercise and cycling for transportation were both inversely and independently associated with all-cause mortality (ptrend<0.05), but walking for transportation was less strongly associated with reduced risk (ptrend=0.07). Women reporting no regular exercise but who reported 10 or more metabolic equivalent (MET) - hours/day of nonexercise activity were at 25-50% reduced risk (ptrend<0.01) relative to less active women (0-9.9 MET-hours/day). Among women reporting the least nonexercise activity (0-9.9 MET-hours/day) but reporting regular exercise participation, exercise was associated with reduced mortality (hazard ratio=0.78,95% confidence interval : 0.62,0.99). These findings add new evidence that overall physical activity levels are an important determinant of longevity, and that health benefit can be obtained through an active lifestyle, exercise, or combinations of both. |
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