Selective Strength Training Changes the Morphology and Ankle Strength of the Peroneus Longus and the Peroneus Brevis
(Satoshi Arima, Noriaki Maeda, Sakura Oda, Yuki Tamura, Makoto Komiya, Tsubasa Tashiro, Yukio Urabe)

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Authors
Satoshi Arima, Noriaki Maeda, Sakura Oda, Yuki Tamura, Makoto Komiya, Tsubasa Tashiro, Yukio Urabe
Abstract

This study aimed to investigate the 8-week selective training effect of the peroneus longus (PL) and the peroneus brevis (PB) on muscle morphology, echogenicity, and ankle strength and to examine post-intervention detraining effects. Twenty healthy participants without orthopedic disease in the lower extremities were assigned to either the PL intervention group (training consisted of pushing the Thera-Band® out from the ball of the foot to emphasize ankle eversion) or the PB intervention group (training consisted of pulling the Thera-Band® from the base of the fifth metatarsal to enhance ankle valgus and external rotation). Each intervention was performed three times per week for 8 weeks. The cross-sectional area (CSA), thickness, echogenicity, and ankle strength of the PL and the PB were measured before week 1 and after each training session. Detraining effects were evaluated after the 8-week intervention. The results revealed a significant interaction between within-group (week) and between-group (type of intervention) variables on CSA and ankle strength of both the PL and the PB. Over the 8-week training period, the CSA and ankle strength of the PL significantly increased in the PL intervention group, as did the CSA and ankle strength of the PB in the PB intervention group (p < 0.05). The residual effect of muscle hypertrophy was observed during the detraining period. In conclusion, 8-week selective PL and PB training interventions can increase the CSA and ankle strength of these muscles over time. Long-term selective intervention is required to improve peroneus muscle morphology and function, with separate assessments of the CSA and ankle strength of the PL and the PB.
DOI
DOI: 10.5114/jhk/176131
Citation
 APA 
Arima, S., Maeda, N., Oda, S., Tamura, Y., Komiya, M., Tashiro, T., Urabe, Y. (2024). Selective Strength Training Changes the Morphology and Ankle Strength of the Peroneus Longus and the Peroneus Brevis. Journal of Human Kinetics, 92, 99-110. https://doi.org/10.5114/jhk/176131
Key words
muscle strength training, peroneus muscles, foot, ankle, ultrasound imaging system,

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