The Effect of Sprint Interval Training on Body Composition of Postmenopausal Women
| Autor: | Hye Y Yoo, Jarrod D. Meerkin, Yati N. Boutcher, Stephen H. Boutcher |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Blood Pressure Physical Therapy Sports Therapy and Rehabilitation High-Intensity Interval Training Interval training Fat mass law.invention 03 medical and health sciences Absorptiometry Photon Oxygen Consumption 0302 clinical medicine Randomized controlled trial Heart Rate law medicine Body Fat Distribution Humans Aerobic exercise Orthopedics and Sports Medicine skin and connective tissue diseases Postmenopausal women business.industry 030229 sport sciences Middle Aged Overweight Postmenopause Cardiorespiratory Fitness Sprint Body Composition Lean body mass Physical therapy Female Composition (visual arts) sense organs business |
| Zdroj: | Medicine & Science in Sports & Exercise. 51:1413-1419 |
| ISSN: | 1530-0315 0195-9131 |
| DOI: | 10.1249/mss.0000000000001919 |
| Popis: | Menopause is accompanied by body composition changes that include a decrease in lean mass and aerobic fitness and an increase in fat mass. Sprint interval training (SIT) may be able to reverse these changes.To examine the effect of an 8-wk SIT program on body composition and aerobic fitness of overweight postmenopausal women.Forty postmenopausal women were randomized into SIT (n = 20) or control (n = 20) groups. The SIT group completed three SIT sessions a week for 8 wk with each session consisting of 20 min of alternating 8-s sprints and 12-s of light pedaling. Total mass, regional lean mass, and fat mass were assessed using dual-energy x-ray absorptiometry. Maximal oxygen uptake (V˙O2max) was predicted using a submaximal test.Total lean mass was significantly increased from pretest (48.1 ± 5.81 kg) to posttest (48.8 ± 5.96 kg) and fat mass was significantly reduced (pre, 29.5 ± 7.29 kg; post, 29.1 ± 7.61 kg) for the SIT group. Lean mass was mostly increased in the trunk (pre, 24.4 ± 2.79 kg; post, 24.8 ± 2.93 kg) and legs (pre, 15.6 ± 2.31 kg; post, 15.9 ± 2.34 kg). V˙O2max was significantly increased from pretest (21.7 ± 4.89 mL⋅kg⋅min) to posttest (24.4 ± 5.96 mL⋅kg⋅min) for the SIT group only.The SIT intervention increased total lean mass, decreased fat mass, and increased aerobic fitness of postmenopausal women after only 8 h of actual exercise over 8 wk. |
| Databáze: | OpenAIRE |
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