Changes in pedometer-measured physical activity are associated with weight loss and changes in body composition and fat distribution in response to reduced energy diet interventions: The POUNDS Lost trial
Diabetes, Obesity and Metabolism Feb 05, 2022
In this study, alterations in objectively measured physical activity (PA) were shown to be inversely associated with changes in body weight, body composition, and fat distribution in response to weight-loss diets, and such associations were more evident in persons with high-fat or average-protein diet than low-fat or high-protein diet.
In 535 participants with overweight/ obesity randomized to 4 weight-loss diets differing in macronutrients, PA was recorded objectively with pedometers, and body composition and fat distribution were assessed at baseline, 6 months, and 24 months.
From baseline to 6 months, when the maximum weight loss occurred, each 1000 daily steps increase in PA was found to be linked with a greater decrease in body weight and waist circumference.
For changes in body composition and fat distribution, similar inverse links were observed.
Across the 24-months intervention span, trajectory of the above adiposity measures varied between the patterns of PA alteration.
Weight loss was maintained from 6 months to 24 months in participants with the largest increase in PA, while weight regaining was evident in participants with less increment in PA.
Dietary fat or protein consumption significantly altered the links between alterations in PA and changes in body weight and waist circumference over 24 months.
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