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Exercise with weight vest plus chicken protein supplementation delayed muscle and bone loss in older female adults
Peeraporn Nithisup1, Apiwan Manimmanakorn1,2, Michael John Hamlin3
1Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Purpose:
This study examined the effects of moderate-to-heavy exercise training combined with weighted vest and chicken protein supplementation in older adult females.
Methods:
Fifty-two female participants, 60-79 yearsold, were randomly divided into three groups: control (non-exercise) (CON), exercise with weighted vest (WV), and exercise with weighted vest and protein supplementation (3 g of protein daily; WVP).A ll participants performed brisk walking and strengthening exercises for 50 min/day, three times/week, for 8 weeks. Muscle mass, bone mineral content, T-score, and physical performance were measured.
Results:
The WVP group demonstrated a substantial increase in thoracic spine bone mineral content (8.4 ± 7.7 g, p = 0.001), and total body lean mass (0.2 ± 1.0 kg) compared with that in the other two groups. The CON and WV groups showed a decrease in thoracic spine bone mineral content (CON= -1.8 ± 1.8, WV= -3.9 ± 0.1 g) and total body lean mass (CON= -0.7 ± 0.9, WV= -0.8 ± 0.9 kg) compared with those in the WVP group. The WVP and WV groups had increased T-score (WVP= 0.01 ± 0.16, WV= 0.02 ± 0.18) when compared with that of the CON group (-0.19 ± 0.12). Both the WV and WVP groups displayed improved physical performance compared with that of the CON group.
Conclusion:
Combined exercise with either a weighted vest or protein supplementation proved to be effective in protecting against trunk bone and muscle mass loss, and improving physical fitness in older female adults.
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