Racial difference in effect of physical activity on obesity

Racial difference in effect of physical activity on obesity

(HealthDay) -- Black adolescent girls are less sensitive to the effects of physical activity in preventing obesity than are white girls, according to a study published in the June issue of the Archives of Pediatrics & Adolescent Medicine.

James White, Ph.D., from Cardiff University, and Russell Jago, Ph.D., from the University of Bristol -- both in the United Kingdom, analyzed data from 1,148 who participated in the National Heart, Lung, and Blood Institute Growth and Health Study at ages 12 and 14 years. Accelerometer counts per day were used to assess . was defined according to three measures: ≥95th percentile of body mass index; using the International Obesity Task Force reference body mass index cut points; and the sums of skinfold thickness method (with obesity ≥90th percentile in the cohort).

The researchers found that, in white girls, but not black girls, there was a strong negative dose-response association between quartiles of accelerometer counts per day at age 12 years and obesity at age 14 years (using all three measurements of obesity). There was a significant increased likelihood of obesity (based on skinfold thickness) between the highest and the lowest quartiles of accelerometer counts per day in white girls (odds ratio, 0.15; P = 0.03 for trend) but not in black girls (odds ratio, 0.85; 95 percent confidence interval, 0.32 to 2.26; P = 0.93 for trend).

"Higher levels of physical activity are prospectively associated with lower levels of obesity in white adolescent girls but not in black adolescent girls," the authors write.

More information: Abstract
Full Text (subscription or payment may be required)

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Weight stigma a daily experience for obese people

Nov 27, 2014

Overweight and obese people experience many more episodes of being stigmatised in their everyday lives than was realised, with most suffering almost daily negative treatment, a UNSW-led study shows.

Berberine compound may play role in treating obesity

Nov 27, 2014

(Medical Xpress)—Weight-gain warnings are especially uncomfortable during holiday seasons with all the oversized and double helpings of calorie-rich pies, creamy dips and savory holiday stuffings. Nonetheless, ...

Expanding waistlines weigh heavy on Malaysia

Nov 27, 2014

Malaysians have a passionate love affair with their lip-smacking cuisine—rich curries, succulent fried chicken, buttery breads and creamy drinks—but it is increasingly an unhealthy relationship.

Obese children burdened by more than weight

Nov 24, 2014

High blood pressure and nonalcoholic fatty liver disease (NAFLD) are two emerging health problems related to the epidemic of childhood obesity. In a recent study, researchers at University of California, ...

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.