Exercise Combined with a Low-Calorie Diet Improves Body Composition, Attenuates Muscle Mass Loss, and Regulates Appetite in Adult Women with High Body Fat Percentage but Normal BMI

Author:

Wu Xinyue1,Zhang Chengnan12,Liang Zhuoying1,Liang Yiheng1,Li Yuxuan1,Qiu Junqiang12

Affiliation:

1. Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing 100084, China

2. Beijing Sports Nutrition Engineering Research Center, Beijing 100084, China

Abstract

Background: The present study aimed to examine the effects of a 500 kcal reduction in daily energy intake alone and in combination with 90 min of moderate-to-vigorous aerobic exercise per week on body weight, body composition, and appetite sensations in young women with normal BMI and abnormal body fat percentage. Methods: sixty-six young women with normal BMI and abnormal body fat percentage (21.33 ± 1.20 kg/m2 and 34.32 ± 2.94%) were randomly assigned into three groups: (1) caloric restriction (CR; n = 22), (2) caloric restriction with exercise (CR–EX; n = 22), and (3) control (C; n = 22). Data on anthropometry, blood samples, and subjective appetite sensations pre- and post-intervention were collected. Results: After 4 weeks of intervention, CR and CR–EX groups both reduced body weight, fat percentage, and waist and hip circumferences compared to the C group (p < 0.05). Muscle mass of the CR group was significantly lower than that of the C group (−1.21 ± 0.86 kg vs. −0.27 ± 0.82 kg, p < 0.05), and no significant difference between CR–EX and C groups was observed. For appetite sensations, the subjects of the CR group showed significant increases in change of scores in desire to eat and prospective consumption than that of the C group (p < 0.05), while no significant difference between CR–EX and C groups was observed. Conclusion: A 500 kcal reduction in daily energy intake alone and in combination with 90 min of moderate-to-vigorous aerobic exercise per week could both reduce weight and improve body composition in young adult women with normal BMI and abnormal body fat percentage. More importantly, calorie restriction combined with exercise intervention was superior to calorie restriction alone in improving muscle mass loss and regulating appetite sensations.

Funder

Study on the Effect of Pumpkin Healthy Meal on Weight Management

Fundamental Research Funds for the Central Universities

Publisher

MDPI AG

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