Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial

Long-distance runners are known to be at a high risk of lower limb disorders due to a decline in the function of the intrinsic foot muscles (IFMs). The aim of this study was to examine the effects of toe tube training using elastic tubes. First, a crossover study was conducted with 13 healthy adults...

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Main Authors: Yuki Nakai, Yasufumi Takeshita
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/14/22/10514
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author Yuki Nakai
Yasufumi Takeshita
author_facet Yuki Nakai
Yasufumi Takeshita
author_sort Yuki Nakai
collection DOAJ
description Long-distance runners are known to be at a high risk of lower limb disorders due to a decline in the function of the intrinsic foot muscles (IFMs). The aim of this study was to examine the effects of toe tube training using elastic tubes. First, a crossover study was conducted with 13 healthy adults in three conditions: tube training, short foot exercise, and control. Changes in the IFMs pre- and post-exercise were confirmed using ultrasound echo. Next, 19 university long-distance runners were randomly divided into two groups (tube training or short foot exercise) and underwent a five-week training intervention. The toe grip strength, toe gap strength, and reactive strength index were measured pre- and post-intervention. In a crossover study, the tube training and short foot exercise showed a significant interaction effect on the abductor hallucis brevis (F = 5.63, <i>p</i> = 0.010, partial η<sup>2</sup> = 0.32) and flexor digitorum brevis (F = 15.29, <i>p</i> < 0.001, partial η<sup>2</sup> = 0.56), confirming an immediate effect of tube training and short foot exercise. In an intervention study with runners, no interaction was observed but a main effect of time was found, with both groups showing significant improvements in toe grip strength (F = 25.64, <i>p</i> < 0.001, partial η<sup>2</sup> = 0.60), toe gap strength (F = 11.26, <i>p</i> = 0.004, partial η<sup>2</sup> = 0.40), and RSI (F = 4.81, <i>p</i> = 0.042, partial η<sup>2</sup> = 0.22). Tube training may be an effective alternative for runners who find short foot exercise difficult and want to adjust the exercise load.
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spelling doaj-art-34b8b98995054610b77a5f30ffc8a86c2025-08-20T01:53:49ZengMDPI AGApplied Sciences2076-34172024-11-0114221051410.3390/app142210514Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled TrialYuki Nakai0Yasufumi Takeshita1Department of Information, Artificial Intelligence and Data Science, Faculty of Engineering, Daiichi Institute of Technology, 1-10-2 Kokubuchuo, Kirishima City 899-4395, JapanDepartment of Information, Artificial Intelligence and Data Science, Faculty of Engineering, Daiichi Institute of Technology, 1-10-2 Kokubuchuo, Kirishima City 899-4395, JapanLong-distance runners are known to be at a high risk of lower limb disorders due to a decline in the function of the intrinsic foot muscles (IFMs). The aim of this study was to examine the effects of toe tube training using elastic tubes. First, a crossover study was conducted with 13 healthy adults in three conditions: tube training, short foot exercise, and control. Changes in the IFMs pre- and post-exercise were confirmed using ultrasound echo. Next, 19 university long-distance runners were randomly divided into two groups (tube training or short foot exercise) and underwent a five-week training intervention. The toe grip strength, toe gap strength, and reactive strength index were measured pre- and post-intervention. In a crossover study, the tube training and short foot exercise showed a significant interaction effect on the abductor hallucis brevis (F = 5.63, <i>p</i> = 0.010, partial η<sup>2</sup> = 0.32) and flexor digitorum brevis (F = 15.29, <i>p</i> < 0.001, partial η<sup>2</sup> = 0.56), confirming an immediate effect of tube training and short foot exercise. In an intervention study with runners, no interaction was observed but a main effect of time was found, with both groups showing significant improvements in toe grip strength (F = 25.64, <i>p</i> < 0.001, partial η<sup>2</sup> = 0.60), toe gap strength (F = 11.26, <i>p</i> = 0.004, partial η<sup>2</sup> = 0.40), and RSI (F = 4.81, <i>p</i> = 0.042, partial η<sup>2</sup> = 0.22). Tube training may be an effective alternative for runners who find short foot exercise difficult and want to adjust the exercise load.https://www.mdpi.com/2076-3417/14/22/10514elastic tubingintrinsic foot muscletoe grip strengthtoe gap strengthreactive strength index
spellingShingle Yuki Nakai
Yasufumi Takeshita
Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
Applied Sciences
elastic tubing
intrinsic foot muscle
toe grip strength
toe gap strength
reactive strength index
title Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
title_full Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
title_fullStr Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
title_full_unstemmed Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
title_short Effects of Toe Tube Training on Intrinsic Foot Muscle Strength and Reactive Strength Index in Runners: A Randomized Controlled Trial
title_sort effects of toe tube training on intrinsic foot muscle strength and reactive strength index in runners a randomized controlled trial
topic elastic tubing
intrinsic foot muscle
toe grip strength
toe gap strength
reactive strength index
url https://www.mdpi.com/2076-3417/14/22/10514
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AT yasufumitakeshita effectsoftoetubetrainingonintrinsicfootmusclestrengthandreactivestrengthindexinrunnersarandomizedcontrolledtrial