ArticleScientific reports2022
Mechanical properties of muscles and tendon structures in middle-aged and young men.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 17 citations in OpenAlex.
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- Investigating the influence of mineral content changes on mechanical properties through ligament insertion.Frontiers in aging · 2025Article
- Differences in lower extremity biomechanics, shank muscle activation and medial gastrocnemius-tendon unit behavior between novice and experienced non-rearfoot strike runners.Frontiers in bioengineering and biotechnology · 2025Article
- Impact of Rounded Back Posture on Motor Unit Potentials and Fascicle Length of Shoulder Retractors in Children.Journal of musculoskeletal & neuronal interactions · 2024Article
- Recent Advances in Biomimetics for the Development of Bio-Inspired Prosthetic Limbs.Biomimetics (Basel, Switzerland) · 2024Review
- Mechanics of The Medial Gastrocnemius-Tendon Unit in Behaving more Efficiently in Habitual Non-Rearfoot Strikers than in Rearfoot Strikers during Running.Journal of sports science & medicine · 2023Article
- Development and Validation of a Novel In Vitro Joint Testing System for Reproduction of In Vivo Dynamic Muscle Force.Bioengineering (Basel, Switzerland) · 2023Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this study was to compare the mechanical properties of muscles and tendon structures for plantar flexor muscles at various strain rates and jump performances using single joint between middle-aged and young men in order to clarify the mechanisms of age-related decline in power output during vertical jump of middle-aged people previously reported. Passive muscle stiffness of the medial gastrocnemius muscle was determined based on passive muscle force and fascicle length during passive stretching at four angular velocities. Active muscle stiffness was calculated based on changes in muscle force and fascicle length during stretching at five angular velocities after submaximal isometric contractions. Maximal elongation and hysteresis of tendon structures were assessed from estimated muscle force-tendon elongation during ramp and ballistic contractions. Two kinds of unilateral jump heights using only ankle joint (no-countermovement and countermovement jumps) were measured. No significant differences in passive and active muscle stiffness, tendon structure properties (except for maximal elongation during ramp contraction), or jump heights were found between middle-aged and young men. The results suggest that the mechanical properties of muscles and tendon structures for plantar flexor muscles and jump performances using only ankle joint do not show age-related changes in middle-aged men.
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