Fifteen-year longitudinal trends in walking patterns and their impact on weight change  

Oleh:

Gordon-Larsen, Penny ; Ningqi, Hou ; Sidney, Steve ; Sternfeld, Barbara ; Lewis, Cora E

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The American Journal of Clinical Nutrition vol. 89 no. 01 (Jan. 2009), page 19.
Topik: Obesity and eating disorders

Ketersediaan

Perpustakaan FK Nomor Panggil: A07.K.2009.01 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Background: Although walking is the most popular leisure-time activity for adults, few long-term, longitudinal studies have examined the association between walking, an affordable and accessible form of physical activity, and weight gain. Objective: The objective was to evaluate the association between changes in leisure-time walking and weight gain over a 15-y period. Design: Prospective data from the Coronary Artery Risk Development in Young Adults (CARDIA) Study of 4995 men and women aged 18–30 y at baseline (1985–1986) from 4 US cities and reexamined 2, 5, 7, 10, and 15 y later. Sex-stratified, repeated-measures, conditional regression modeling with data from all 6 examination periods (n = 23,633 observations) was used to examine associations between walking and annualized 15-y weight change, with control for 15-y nonwalking physical activity, baseline weight (and their interaction), marital status, education, smoking, calorie intake, and baseline age, race, and field center. Results: Mean (±SE) baseline weights were 77.0 ± 0.3 kg (men) and 66.2 ± 0.3 kg (women), weight gain was 1 kg/y, and the mean duration of walking at baseline was <15 min/d. After accounting for nonwalking physical activity, calorie intake, and other covariates, we found a substantial association between walking and annualized weight change; the greatest association was for those with a larger baseline weight. For example, for women at the 75th percentile of baseline weight, 0.5 h of walking/d was associated with 8 kg less weight gain over 15 y compared with women with no leisure time walking. Conclusion: Walking throughout adulthood may attenuate the long-term weight gain that occurs in most adults.

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