Body composition and physical fitness improve after 8 weeks of high-intensity circuit training using body weight in obese women
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Issued Date
2023-02-01
Resource Type
ISSN
00224707
eISSN
18271928
Scopus ID
2-s2.0-85159221630
Journal Title
Journal of Sports Medicine and Physical Fitness
Volume
63
Issue
2
Start Page
273
End Page
281
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Sports Medicine and Physical Fitness Vol.63 No.2 (2023) , 273-281
Suggested Citation
Ajjimaporn A., Khemtong C., Willems M.E.T. Body composition and physical fitness improve after 8 weeks of high-intensity circuit training using body weight in obese women. Journal of Sports Medicine and Physical Fitness Vol.63 No.2 (2023) , 273-281. 281. doi:10.23736/S0022-4707.22.14000-4 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/82776
Title
Body composition and physical fitness improve after 8 weeks of high-intensity circuit training using body weight in obese women
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
BACKGROUND: We examined the effects of an 8-week modified high-intensity circuit training using body weight as resistance (HICTBW) on health-related physical fitness in sedentary obese women. METHODS: Twenty-four sedentary obese women were allocated into the HICTBW or a non-training control group (CG). The modified HICTBW was performed for eight weeks (three times per week). Training consisted of a 30-second workout and 10-second rest for 12 exercise poses per one circuit (one circuit in the first week), with an increase of one circuit every two weeks. Body weight and body composition included skeletal muscle mass (SMM), body fat mass (BFM), body fat percentage (BF%), visceral fat area (VFA), and skeletal muscle mass to visceral fat area ratio (MFR) were measured. Physical fitness included flexibility of the lower back and hamstrings (FlexLH), and leg and handgrip muscle strength (StrengthLeg, StrengthHG). Cardiovascular endurance included the Åstrand-Rhyming heart rate (HRÅstrand), relative maximum oxygen uptake (relative V̇ O2max), and workload. RESULTS: All variables were obtained at baseline, week 4, and week 8. The HICTBW improved FlexLH, StrengthLeg, and relative V̇ O2max from baseline to week 4 (All P<0.05). Improvements from baseline to week 8 were observed for SMM, BFM, BF%, VFA and MFR, FlexLH, Strength-Leg, HRÅstrand, relative V̇ O2max, and workload (All P<0.05). Furthermore, the HICTBW elicited a higher change in SMM (+2.9%), BFM (-3.4%), BF% (-3.2%), MFR (+9.5%), FlexLH (+145.7%) and relative V̇ O2max (+32.3%) than the CG at week-8 (All P<0.05). CONCLUSIONS: An eight-week modified HICTBW program thrice a week is an effective training modality to influence health-related physical fitness in sedentary obese women.