CompletedBones, Joints & MusclesNIHR-supported projectBrain & Nervous System
Examining the Ability of the MyotonPRO to Assess Contraction and Fatigue of the Biceps Brachii & Tibialis Anterior Following Physical Activity to Exhaustion
Recipient organisationNIHR Southampton Biomedical Research Centre
NIHR supportRecorded as supported by this research centre
PeriodFeb 2025 — May 2026
In plain English
AI plain-English summary
A handheld device that measures muscle stiffness and elasticity is being tested for its ability to detect fatigue in the biceps and shin muscles after exercise to exhaustion. The problem is that current methods for tracking muscle fatigue—such as electromyography and force dynamometry—are bulky, expensive, or require specialist training. The MyotonPRO is a portable, non-invasive tool that could offer a simpler alternative, but its sensitivity to fatigue-induced changes in different muscle groups has not been rigorously tested. This study will put 20 healthy students through fatiguing exercise protocols, taking MyotonPRO measurements before and after, and comparing them with subjective fatigue ratings on the Borg scale. If the device proves reliable, it could give athletes, physiotherapists, and rehabilitation clinicians a practical, real-time way to monitor muscle recovery and fatigue without needing lab equipment. For sports performance, this means adjusting training loads on the spot. For clinical settings, it could offer a quick bedside check of muscle function after injury or surgery. The research is squarely applied—it tests a specific tool for a specific purpose, with immediate relevance to anyone who needs to know when a muscle is truly tired.
View original technical description
This study aims to evaluate the effectiveness of the MyotonPRO device in assessing muscle contraction and fatigue in two key muscles: the biceps brachii and tibialis anterior. These muscles are critical for upper and lower limb function, and understanding how they respond to fatigue can provide valuable insights for both clinical rehabilitation and sports performance. The MyotonPRO is a portable, non-invasive tool that measures muscle tone, stiffness, and elasticity, but its ability to detect fatigue-induced changes in muscle properties, particularly in different muscle groups, remains underexplored. The research will involve 20 healthy students from the University of Southampton, split evenly by gender. Participants will undergo muscle-fatiguing protocols targeting the biceps brachii and tibialis anterior, with MyotonPRO measurements taken before and after the exercise to assess changes in muscle properties. The study uses a repeated-measures design, ensuring each participant serves as their own control, and will compare baseline data with post-exercise measurements to assess the MyotonPRO's sensitivity to fatigue. The primary objective is to determine if the MyotonPRO can reliably detect fatigue-induced alterations in muscle characteristics such as tone, stiffness, and elasticity in both muscles. Additionally, the study will explore the correlation between MyotonPRO measurements and subjective fatigue assessments using the Borg RPE scale, which will help validate the device's effectiveness as a fatigue assessment tool. This research is significant for advancing methods of monitoring muscle function, especially for athletes who require real-time, non-invasive tools for tracking fatigue and recovery. If validated, the MyotonPRO could become an effective alternative to more traditional techniques like electromyography (EMG) or force dynamometry, providing a practical solution for muscle monitoring in both athletic and clinical settings.
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