Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults
This study investigates the effects of low-intensity high-repetition (LI-HR) and high-intensity low-repetition (HI-LR) resistance training (RT) on functional fitness and myokines in older adults. A total of 30 participants (mean age ~76 years) were randomized into control (n = 10), LI-HR (n = 10), o...
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2025-01-01
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| author | Moon Jin Lee Jun-Young Sung Jiyoun Kim |
| author_facet | Moon Jin Lee Jun-Young Sung Jiyoun Kim |
| author_sort | Moon Jin Lee |
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| description | This study investigates the effects of low-intensity high-repetition (LI-HR) and high-intensity low-repetition (HI-LR) resistance training (RT) on functional fitness and myokines in older adults. A total of 30 participants (mean age ~76 years) were randomized into control (n = 10), LI-HR (n = 10), or HI-LR (n = 10) groups. Participants in LI-HR and HI-LR groups performed elastic band-based RT three times per week for 12 weeks. Pre- and post-intervention assessments included functional fitness (relative grip strength, sit-to-stand, 4 m walk, timed up-and-go (TUG)), ankle muscle strength, lower extremity power, and myokine levels (IL-6, IGF-1, SPARC, BDNF). Both experimental groups showed significant IL-6 reduction (LI-HR: <i>p</i> = 0.033; HI-LR: <i>p</i> = 0.015) and IGF-1 increase (LI-HR: <i>p</i> = 0.003; HI-LR: <i>p</i> < 0.001). SPARC increased significantly only in the HI-LR group (<i>p</i> = 0.021). Functional improvements were noted in TUG for both groups, while the 4 m walk improved significantly in the HI-LR group (<i>p</i> < 0.001). Body fat percentage increased in both LI-HR (<i>p</i> = 0.003) and HI-LR (<i>p</i> = 0.047). In conclusion, both LI-HR and HI-LR RT effectively enhance functional fitness and key myokines, with LI-HR emerging as a promising, accessible option for older adults. |
| format | Article |
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| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
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| series | Applied Sciences |
| spelling | doaj-art-ae0879e5139242c9ae0b74f64bce77be2025-01-24T13:20:43ZengMDPI AGApplied Sciences2076-34172025-01-0115275710.3390/app15020757Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older AdultsMoon Jin Lee0Jun-Young Sung1Jiyoun Kim2Department of Exercise Rehabilitation, Institute of Human Convergence Health Science, Gachon University, Incheon 13120, Republic of KoreaDepartment of Exercise Rehabilitation, Institute of Human Convergence Health Science, Gachon University, Incheon 13120, Republic of KoreaDepartment of Exercise Rehabilitation, Institute of Human Convergence Health Science, Gachon University, Incheon 13120, Republic of KoreaThis study investigates the effects of low-intensity high-repetition (LI-HR) and high-intensity low-repetition (HI-LR) resistance training (RT) on functional fitness and myokines in older adults. A total of 30 participants (mean age ~76 years) were randomized into control (n = 10), LI-HR (n = 10), or HI-LR (n = 10) groups. Participants in LI-HR and HI-LR groups performed elastic band-based RT three times per week for 12 weeks. Pre- and post-intervention assessments included functional fitness (relative grip strength, sit-to-stand, 4 m walk, timed up-and-go (TUG)), ankle muscle strength, lower extremity power, and myokine levels (IL-6, IGF-1, SPARC, BDNF). Both experimental groups showed significant IL-6 reduction (LI-HR: <i>p</i> = 0.033; HI-LR: <i>p</i> = 0.015) and IGF-1 increase (LI-HR: <i>p</i> = 0.003; HI-LR: <i>p</i> < 0.001). SPARC increased significantly only in the HI-LR group (<i>p</i> = 0.021). Functional improvements were noted in TUG for both groups, while the 4 m walk improved significantly in the HI-LR group (<i>p</i> < 0.001). Body fat percentage increased in both LI-HR (<i>p</i> = 0.003) and HI-LR (<i>p</i> = 0.047). In conclusion, both LI-HR and HI-LR RT effectively enhance functional fitness and key myokines, with LI-HR emerging as a promising, accessible option for older adults.https://www.mdpi.com/2076-3417/15/2/757low and high intensitylow and high repetitionresistance trainingfunctional physical fitnessmyokines |
| spellingShingle | Moon Jin Lee Jun-Young Sung Jiyoun Kim Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults Applied Sciences low and high intensity low and high repetition resistance training functional physical fitness myokines |
| title | Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults |
| title_full | Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults |
| title_fullStr | Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults |
| title_full_unstemmed | Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults |
| title_short | Effect of Low-Intensity High-Repetition Versus High-Intensity Low-Repetition Elastic Band Resistance Training on Functional Physical Fitness and Myokine Levels in Older Adults |
| title_sort | effect of low intensity high repetition versus high intensity low repetition elastic band resistance training on functional physical fitness and myokine levels in older adults |
| topic | low and high intensity low and high repetition resistance training functional physical fitness myokines |
| url | https://www.mdpi.com/2076-3417/15/2/757 |
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