ArticleFrontiers in physiology2016
Passive Muscle-Tendon Unit Gearing Is Joint Dependent in Human Medial Gastrocnemius.
Article in Frontiers in physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 21 citations in OpenAlex.
- Ultrasound-derived changes in thickness of human ankle plantar flexor muscles during walking and running are not homogeneous along the muscle mid-belly region.Scientific reports · 2019Trial
- In vivo assessment of the passive stretching response of the bicompartmental human semitendinosus muscle using shear-wave elastography.Journal of applied physiology (Bethesda, Md. : 1985) · 2022Article
- Regional variation in lateral and medial gastrocnemius muscle fibre lengths obtained from diffusion tensor imaging.Journal of anatomy · 2022Article
- The Energy of Muscle Contraction. I. Tissue Force and Deformation During Fixed-End Contractions.Frontiers in physiology · 2020Article
- The Effect of Multidirectional Loading on Contractions of the M. Medial Gastrocnemius.Frontiers in physiology · 2020Article
- A Horse of a Different Color?: Tensile Strength and Elasticity of Sloth Flexor Tendons.Integrative organismal biology (Oxford, England) · 2020Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Skeletal muscles change length and develop force both passively and actively. Gearing allows muscle fiber length changes to be uncoupled from those of the whole muscle-tendon unit. During active contractions this process allows muscles to operate at mechanically favorable conditions for power or economical force production. Here we ask whether gearing is constant in passive muscle; determining the relationship between fascicle and muscle-tendon unit length change in the bi-articular medial gastrocnemius and investigating the influence of whether motion occurs at the knee or ankle joint. Specifically, the same muscle-tendon unit length changes were elicited by rotating either the ankle or knee joint whilst simultaneously measuring fascicle lengths in proximal and distal muscle regions using B-mode ultrasound. In both the proximal and distal muscle region, passive gearing values differed depending on whether ankle or knee motion occurred. Fascicle length changes were greater with ankle motion, likely reflecting anatomical differences in proximal and distal passive tendinous tissues, as well as shape changes of the adjacent mono-articular soleus. This suggests that there is joint-dependent dissociation between the mechanical behavior of muscle fibers and the muscle-tendon unit during passive joint motions that may be important to consider when developing accurate models of bi-articular muscles.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.