| Titre : | Leisure-time physical activity dose-response effects on obesity among US adults : results from the 1999-2006 National Health and Nutrition Examination Survey. (2010) |
| Auteurs : | SEO (Dong-Chul) : USA. Department of Applied Health Science. Indiana University. Bloomington. IN. ; KAIGANG LI (.) : USA. Department of Health policy. Management and Behavior. University at Albany. Rensselaer. |
| Type de document : | Article |
| Dans : | Journal of epidemiology and community health (vol. 64, n° 5, 2010) |
| Pagination : | 426-431 |
| Langues: | Anglais |
| Mots-clés : | Obésité ; Loisir ; Activité physique ; Dosage ; Adulte ; Résultat ; Alimentation ; Nutrition ; Médecine nutritionnelle ; Homme |
| Résumé : | [BDSP. Notice produite par INIST-CNRS rkoDsR0x. Diffusion soumise à autorisation]. Background. It is not well established whether total volume of leisure-time physical activity (LTPA) has dose-response effects on obesity. Methods. The dose-response relationship was examined using 12 227 non-institutionalised individuals, aged 20-64 years, drawn from the 8 years (1999-2006) of the continuous National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US population. Results. The age-adjusted prevalence of women's obesity was 41.4% for those with no LTPA in the past month ; 39.1% for those who engaged in LTPA but fell short of the recommended minimum amount of LTPA (ie,<450 metabolic equivalent minutes per week (MET min/week)) ; 31.0% for those who met the recommended minimum guideline (ie, 450 to<750) ; 28.0% for those whose LTPA exceeded the minimum guideline but less than the first quartile among the overachievers (ie, 750 to<1260) ; 23.4% for the overachievers between the first and third quartile (ie, 1260 to<3556) ; and 19.5% for the overachievers at or above the third quartile (ie, 3556 MET min/week or above). This association was maintained even after occupational physical activity (OPA) was controlled. However, this pattern was not observed for Mexican and black adults and showed a floor effect as LTPA increased. Conclusions. There is a crude graded inverse dose-response relationship between total volume of LTPA and obesity in US adult women, but not in men. Gender and racial/ethnic differences exist in the relationship of accumulated LTPA with obesity due, in part, to differential ratios of LTPA to OPA. |
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