Abstract
This research investigates the effects of muscle fatigue on spatial myoelectric patterns in the lower limb during locomotion. Both spatial and frequency aspects of neuromuscular recruitment in the medial gastrocnemius change in response to fatigue, resulting in altered myoelectric patterns during walking and running. These data may help us better understand the adaptations that occur in lower limb muscles to avoid overuse injuries caused by fatigue.
Highlights
Fatigue is a broadly used term that refers to a reduction in physical and/or cognitive function that limits human performance [1]
We found that healthy individuals exhibited changes in their medial gastrocnemius spatial myoelectric patterns during locomotion in response to localized muscle fatigue
Long-duration fatigue in the ankle plantarflexor muscles through repetitive eccentric and concentric muscle actions, peak EMG activity amplitude significantly decreased in the medial gastrocnemius during walking and running, along with a proximal shift in the peak EMG-root mean square (RMS) barycenter
Summary
Fatigue is a broadly used term that refers to a reduction in physical and/or cognitive function that limits human performance [1]. It is often composed of both central and peripheral components. Repeated muscle contractions increase tendon compliance and often lead to damage of the tendon structure [12]. This is relevant during endurance sports, where athletes often experience alterations in their neuromuscular recruitment and central drive [13, 14]. During long-distance running, for example, ankle plantarflexor muscle fatigue can lead to increased loads on the Achilles tendon, leaving it susceptible to injury once its load tolerance is exceeded [15]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
