Cited by 69Muscle metabolism and nutritionMuscle Physiology and DisordersExercise and Physiological Responses

Ursolic acid-induced elevation of serum irisin augments muscle strength during resistance training in men

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Bang, Hyun Seok, Seo, Dae Yun, Chung, Yong Min, Oh, Kyoung-Mo, Park, Jung Jun, Arturo, Figueroa, Jeong, Seung-Hun, Kim, Nari +1 more·2014·The Korean Journal of Physiology & Pharmacology

Abstract

Ursolic acid (UA), a type of pentacyclic triterpenoid carboxylic acid purified from natural plants, can promote skeletal muscle development. We measured the effect of resistance training (RT) with/without UA on skeletal muscle development and related factors in men. Sixteen healthy male participants (age, 29.37±5.14 years; body mass index=27.13±2.16 kg/m(2)) were randomly assigned to RT (n=7) or RT with UA (RT+UA, n=9) groups. Both groups completed 8 weeks of intervention consisting of 5 sets of 26 exercises, with 10~15 repetitions at 60~80% of 1 repetition maximum and a 60~90-s rest interval between sets, performed 6 times/week. UA or placebo was orally ingested as 1 capsule 3 times/day for 8 weeks. The following factors were measured pre-and post-intervention: body composition, insulin, insulin-like growth factor-1 (IGF-1), irisin, and skeletal muscle strength. Body fat percentage was significantly decreased (p<0.001) in the RT+UA group, despite body weight, body mass index, lean body mass, glucose, and insulin levels remaining unchanged. IGF-1 and irisin were significantly increased compared with baseline levels in the RT+UA group (p<0.05). Maximal right and left extension (p<0.01), right flexion (p<0.05), and left flexion (p<0.001) were significantly increased compared with baseline levels in the RT+UA group. These findings suggest that UA-induced elevation of serum irisin may be useful as an agent for the enhancement of skeletal muscle strength during RT.

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  1. [45]Keipert S Ost M Johann K Imber F Jastroch M van Schothorst EM Keijer J Klaus S Skeletal muscle mitochondrial uncoupling drives endocrine cross-talk through the induction of FGF21 as a myokine Am J Physiol Endocrinol Metab 2014 306 E469 E482 24347058

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Authors
Bang, H. S., Seo, D. Y., Chung, Y. M., Oh, K.-M., Park, J. J., Arturo, F., Jeong, S.-H., Kim, N., & Han, J.
Affiliations
  • Pohang University of Science and Technology (KR)
  • Inje University (KR)
  • Tongmyong University (KR)
  • Pukyong National University (KR)
  • Pusan National University (KR)
  • Florida State University (US)
Corresponding author
  • Bang, Hyun Seok
  • Seo, Dae Yun
Venue
The Korean Journal of Physiology & Pharmacology
Published
2014
Volume
18
Issue
5
Pages
441
ISSN
  • 1226-4512 (ISSN-L)
  • 2093-3827
OpenAlex
W2052505294
Cited by
69
References
47
Citations by year
2026: 1 · 2025: 3 · 2024: 5 · 2023: 8 · 2022: 4 · 2021: 8 · 2020: 5 · 2019: 5 · 2018: 6 · 2017: 10 · 2016: 9 · 2015: 4
FWCI
3.82
Type
journal article
Language
en
Open access
Locations
  • Korean Journal of Physiology and Pharmacology (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation (R13-2007-023-00000-0, 00000)
  • Inje University
  • National Research Foundation of Korea (2011-0028925, 2010-0020224, R13-2007-023-00000-0)
  • Ministry of Education, Science and Technology (2010-0020224, R13-2007-023-00000-0)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
ursolic acid, irisin, resistance training, skeletal muscle strength, insulin-like growth factor I, body fat percentage, myogenesis

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