ArticleEuropean journal of applied physiology2016
Effect of muscle length on voluntary activation of the plantar flexors in boys and men.
Article in European journal of applied physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- Comparisons of muscle strength, size, and voluntary activation in pre- and post-pubescent males and females.European journal of applied physiology · 2021Article
- Effect of ankle joint position on triceps surae contractile properties and motor unit discharge rates.Physiological reports · 2021Article
- Plantar flexor muscle-tendon unit length and stiffness do not influence neuromuscular fatigue in boys and men.European journal of applied physiology · 2020Article
- Eccentric Resistance Training in Youth: Perspectives for Long-Term Athletic Development.Journal of functional morphology and kinesiology · 2019Review
- Neuromuscular Properties of the Human Wrist Flexors as a Function of the Wrist Joint Angle.Frontiers in bioengineering and biotechnology · 2019Article
- Exercise-induced fatigue in young people: advances and future perspectives.European journal of applied physiology · 2018Review
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of the present study was to compare the effect of muscle length on the maximal voluntary activation level (VA) of the plantar-flexors between children and adults.
methodsFourteen boys (10.0 ± 1.0 years) and fifteen men (24.6 ± 4.2 years) performed 5-s maximal isometric voluntary contractions (MVC) of the plantar-flexor muscles at seven ankle angles [from 10° in dorsi-flexion (DF) to 20° in plantar-flexion (PF); 0° = reference position; the angle between the plantar surface and leg is a right angle]. Single magnetic stimulations were delivered to the posterior tibial nerve during MVCs to determine VA.
resultsResults showed a higher absolute torque of the plantar-flexor muscles at long (10° DF) than at short muscle length (20° PF) in men (89.4 ± 19.4 vs. 46.8 ± 17.0 N m, P < 0.001) and boys (44.9 ± 18.5 vs. 26.6 ± 12.8 N m, P < 0.001). On average, VA was significantly higher in men than in boys (92.4 ± 1.7 vs. 87.6 ± 1.6 %, P < 0.05). However, no significant main effect of the ankle angle was observed on VA.
conclusionsThe VA partly accounts for the plantar-flexors MVC torque difference between children and adults but is not affected by the muscle length changes in both groups. Therefore, VA cannot account for the shape of the torque-angle relationship on the plantar-flexor muscles.
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