Moderate to vigorous physical activity and weight outcomes: does every minute count?


PURPOSE The purpose of this study was to test if moderate to vigorous physical activity (MVPA) in less than the recommended ≥10-minute bouts related to weight outcomes. DESIGN Secondary data analysis. SETTING Random sample from the U.S. civilian noninstitutionalized population included in the National Health and Nutrition Examination Survey (NHANES). PARTICIPANTS A total of 4511 adults aged 18 to 64 years from the 2003-2006 NHANES. METHOD Clinically measured body mass index (BMI) and overweight/obese status were regressed on accelerometer measures of minutes per day in higher-intensity long bouts (≥10 minutes, ≥2020 accelerometer counts per minute [cpm]), higher-intensity short bouts (<10 minutes, ≥2020 cpm), lower-intensity long bouts (≥10 minutes, 760-2019 cpm), and lower-intensity short bouts (<10 minutes, 760-2019 cpm). Socioeconomic and demographic characteristics were controlled. RESULTS Both higher-intensity short bouts and long bouts of PA related to lower BMI and risk of overweight/obesity. Neither lower-intensity short bouts nor long bouts related to BMI or risk of overweight/obesity. CONCLUSION The current ≥10-minute MVPA bouts guideline was based on health benefits other than weight outcomes. Our findings showed that for weight gain prevention, accumulated higher-intensity PA bouts of <10 minutes are highly beneficial, supporting the public health promotion message that "every minute counts."

DOI: 10.4278/ajhp.120606-QUAL-286
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@article{Fan2013ModerateTV, title={Moderate to vigorous physical activity and weight outcomes: does every minute count?}, author={Jessie X. Fan and B. Bradford Brown and Heidi A. Hanson and Lori Kowaleski-Jones and Ken Robert Smith and Cathleen D. Zick}, journal={American journal of health promotion : AJHP}, year={2013}, volume={28 1}, pages={41-9} }