Short and long bouts of higher-intensity physical activity linked to lower BMI, risk of obesity
WEDNESDAY, Sept. 4 (HealthDay News) -- Even short bouts of higher-intensity physical activity (PA) of less than 10 minutes are beneficial for prevention of weight gain, according to a study published online Sept. 1 in the American Journal of Health Promotion.
Jessie X. Fan, Ph.D., from the University of Utah in Salt Lake City, and colleagues used data from 4,511 adults, aged 18 to 64 years, participating in the 2003 to 2006 National Health and Nutrition Examination Survey to examine the correlation between short bouts of physical activity and weight outcomes. Physical activity was categorized as higher-intensity long bouts (≥10 minutes, ≥2,020 accelerometer counts per minute [cpm]), higher-intensity short bouts (<10 minutes, ≥2,020 cpm), lower-intensity long bouts (≥10 minutes, 760 to 2,019 cpm), and lower-intensity short bouts (<10 minutes, 760 to 2,019 cpm).
The researchers found that short and long bouts of higher-intensity PA were linked to lower body mass index and the risk of overweight/obesity. There was no correlation seen for short or long bouts of lower-intensity PA with body mass index or risk of overweight/obesity.
"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,'" write the authors.
Abstract (http://www.ajhpcontents.com/doi/abs/10.4278/ajhp.120606-QUAL-286?journalCode=hepr )Full Text (subscription or payment may be required) (http://www.ajhpcontents.com/doi/pdf/10.4278/ajhp.120606-QUAL-286 )