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

IF 2.4 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness Pub Date : 2025-01-11 DOI:10.1016/j.jesf.2025.01.003

Ronaldo Alves da Cunha , Vinícius Ribeiro dos Anjos Souza , Lavínia Vivan , Aldo Seffrin , Claudio Andre Barbosa de Lira , Katja Weiss , Beat Knechtle , Marilia Santos Andrade

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引用次数: 0

Abstract

Objectives

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.

Methods

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.

Results

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 < 0.001). The conventional and functional balance ratios remain stable across all age groups.

Conclusion

Knee flexor and extensor strength in male runners decreases significantly after the age of 50, while conventional and functional strength balance ratios remain stable.

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来源期刊

Journal of Exercise Science & Fitness 医学-运动科学

CiteScore

5.10

自引率

3.60%

发文量

审稿时长

31 days

期刊介绍： The Journal of Exercise Science and Fitness is the official peer-reviewed journal of The Society of Chinese Scholars on Exercise Physiology and Fitness (SCSEPF), the Physical Fitness Association of Hong Kong, China (HKPFA), and the Hong Kong Association of Sports Medicine and Sports Science (HKASMSS). It is published twice a year, in June and December, by Elsevier. The Journal accepts original investigations, comprehensive reviews, case studies and short communications on current topics in exercise science, physical fitness and physical education.