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Title: Ankle and toe muscle strength characteristics in runners with a history of medial tibial stress syndrome
Authors: Saeki, Junya
Nakamura, Masatoshi
Nakao, Sayaka
Fujita, Kosuke
Yanase, Ko
Morishita, Katsuyuki
Ichihashi, Noriaki  kyouindb  KAKEN_id
Author's alias: 佐伯, 純弥
中尾, 彩佳
市橋, 則明
Keywords: Medial tibial stress syndrome
Shin splints
Toe flexor muscle strength
Hallux
Lesser toes
Metatarsophalangeal joint
Flexor hallucis longus
Flexor digitorum longus
Issue Date: 11-Apr-2017
Publisher: Springer Nature
Journal title: Journal of Foot and Ankle Research
Volume: 10
Thesis number: 16
Abstract: [Background]A high proportion of flexor digitorum longus attachment is found at the posteromedial border of the tibia, which is the most common location of medial tibial stress syndrome (MTSS). Therefore, plantar flexion strength of the lesser toes could be related to MTSS; however, the relationship between MTSS and muscle strength of the hallux and lesser toes is not yet evaluated due to the lack of quantitative methods. This study investigated the muscle strength characteristics in runners with a history of MTSS by using a newly developed device to measure the muscle strength of the hallux, lesser toes, and ankle. [Methods]This study comprised 27 collegiate male runner participants (20.0 ± 1.6 years, 172.1 ± 5.1 cm, 57.5 ± 4.0 kg). Maximal voluntary isometric contraction (MVIC) torque of the plantar flexion, dorsiflexion, inversion, and eversion of the ankle were measured by using an electric dynamometer. MVIC torque of the 1st metatarsophalangeal joint (MTPJ) and 2nd–5th MTPJ were measured by using a custom-made torque-measuring device. MVIC torques were compared between runners with and without a history of MTSS. [Results]MVIC torque of the 1st MTPJ plantar flexion was significantly higher in runners with a history of MTSS than in those without it. In contrast, there were no significant differences in the MVIC torque values of the 2nd–5th MTPJ plantar flexion and each MVIC torque of the ankle between runners with and without a history of MTSS. [Conclusion]A history of MTSS increased the isometric FHL strength.
Rights: © The Author(s). 2017 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
URI: http://hdl.handle.net/2433/225252
DOI(Published Version): 10.1186/s13047-017-0197-2
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