Knee strength balance ratios are not affected by aging among male runners

This study aimed to assess thigh muscular strength, conventional and functional strength balance ratios, and muscle quality in well-trained male runners aged 20–70 yr. Eighty-nine male runners were divided into five age categories: 20–29, 30–39, 40–49, 50–59, and 60–70 yr. Participants underwent an...

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Bibliographic Details
Published in:Journal of exercise science and fitness 2025-04, Vol.23 (2), p.77-82
Main Authors: Alves da Cunha, Ronaldo, Ribeiro dos Anjos Souza, Vinícius, Vivan, Lavínia, Seffrin, Aldo, de Lira, Claudio Andre Barbosa, Weiss, Katja, Knechtle, Beat, Andrade, Marilia Santos
Format: Article
Language:English
Subjects:
Aging
Balance ratio
Isokinetic
Strength
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Summary:This study aimed to assess thigh muscular strength, conventional and functional strength balance ratios, and muscle quality in well-trained male runners aged 20–70 yr. Eighty-nine male runners were divided into five age categories: 20–29, 30–39, 40–49, 50–59, and 60–70 yr. Participants underwent an isokinetic strength test for knee flexor and extensor muscles and a body composition analysis via dual-energy X-ray absorptiometry. No significant difference was observed in concentric peak torque of the knee extensor muscles between the 20–29 and 40–49 age groups. However, the 50–59 age group showed significantly lower strength than the 20–29 age group (p = 0.049), and the 60–70 age group demonstrated significantly lower strength than the 40–49 group (p 
ISSN:1728-869X
2226-5104
DOI:10.1016/j.jesf.2025.01.003