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Epidemiology and Biostatistics
4-1-2006
Seasonal variation in food intake, physical activity, and body weight in a predominantly overweight population Yunsheng Ma Barbara C. Olendzki W. Li Andrea R. Hafner David E. Chiriboga See next page for additional authors
Follow this and additional works at: http://scholarcommons.sc.edu/ sph_epidemiology_biostatistics_facpub Part of the Public Health Commons Publication Info Postprint version. Published in European Journal of Clinical Nutrition, Volume 60, Issue 4, 2006, pages 519-528. Ma, Y., Olendzki, B.C., Li, W., Hafner, A.R., Chiriboga, D., Hébert, J.R., . . . Ockene, I.S. (2006). Seasonal variation in food intake, physical activity, and body weight in a predominantly overweight population. European Journal of Clinical Nutrition, 60(4), 519-528. doi:10.1038/sj.ejcn.1602346 http://www.nature.com/ejcn/journal/v60/n4/full/1602346a.html © 2006 Nature Publishing Group.
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Author(s)
Yunsheng Ma, Barbara C. Olendzki, W. Li, Andrea R. Hafner, David E. Chiriboga, James R. Hébert, Mary Jane Campbell, M. Sarnie, and Ira S. Ockene
This article is available at Scholar Commons: http://scholarcommons.sc.edu/sph_epidemiology_biostatistics_facpub/233
NIH Public Access Author Manuscript Eur J Clin Nutr. Author manuscript; available in PMC 2007 April 1.
NIH-PA Author Manuscript
Published in final edited form as: Eur J Clin Nutr. 2006 April ; 60(4): 519–528.
Seasonal variation in food intake, physical activity, and body weight in a predominantly overweight population Y Ma1, BC Olendzki1, W Li1, AR Hafner1, D Chiriboga2, JR Hebert3, M Campbell1, M Sarnie1, and IS Ockene4 1Division of Preventive and Behavioral Medicine, University of Massachusetts Medical School, Worcester, MA, USA; 2Preventive Medicine Program, Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, MA, USA; 3Department of Biostatistics and Epidemiology, University of South Carolina, Columbia, SC, USA and
NIH-PA Author Manuscript
4Division of Cardiovascular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
Abstract Objective— To describe seasonal variation in food intake, physical activity, and body weight in a predominantly overweight population. Design— A longitudinal observational study. Setting—Most of the study participants were recruited from a health maintenance organization (HMO) in central Massachusetts, USA. Additional individuals of Hispanic descent were recruited from outside of the HMO population to increase the ethnic diversity of this sample. Subjects—Data from 593 participants, aged 20–70, were used for this investigation. Each participant was followed quarterly (five sampling points: baseline and four consecutive quarters) for 1-year period. Body weight measurements and three 24-h dietary and physical activity recalls were obtained on randomly selected days (including 2 weekdays and 1 weekend day) per quarter. Sinusoidal regression models were used to estimate peak-to-trough amplitude and phase of the peaks.
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Results— Daily caloric intake was higher by 86 kcal/day during the fall compared to the spring. Percentage of calories from carbohydrate, fat and saturated fat showed slight seasonal variation, with a peak in the spring for carbohydrate and in the fall for total fat and saturated fat intake. The lowest physical activity level was observed in the winter and the highest in the spring. Body weight varied by about 1/2 kg throughout the year, with a peak in the winter (P