ArticleBiology letters2008
Functional diversification within and between muscle synergists during locomotion.
Article in Biology letters, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 69 citations in OpenAlex.
- Hamstring Injury Mechanisms and Eccentric Training-Induced Muscle Adaptations: Current Insights and Future Directions.Sports medicine (Auckland, N.Z.) · 2025Review
- Gape drives regional variation in temporalis architectural dynamics in tufted capuchins.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Phase transformation-driven artificial muscle mimics the multifunctionality of avian wing muscle.Journal of the Royal Society, Interface · 2021Article
- Do skeletal muscle motor units and microvascular units align to help match blood flow to metabolic demand?European journal of applied physiology · 2021Review
- Computational modelling of muscle fibre operating ranges in the hindlimb of a small ground bird (Eudromia elegans), with implications for modelling locomotion in extinct species.PLoS computational biology · 2021Article
- Effect of muscle stimulation intensity on the heterogeneous function of regions within an architecturally complex muscle.Journal of applied physiology (Bethesda, Md. : 1985) · 2021Article
- On the 3D Nature of the Magpie (Aves:Frontiers in bioengineering and biotechnology · 2021Article
- The Energy of Muscle Contraction. I. Tissue Force and Deformation During Fixed-End Contractions.Frontiers in physiology · 2020Article
- Symmetry and spatial distribution of muscle glucose uptake in the lower limbs during walking measured using FDG-PET.PloS one · 2019Article
- Different Segments within Vertebrate Muscles Can Operate on Different Regions of Their Force-Length Relationships.Integrative and comparative biology · 2018Article
- Dynamic Musculoskeletal Functional Morphology: Integrating diceCT and XROMM.Anatomical record (Hoboken, N.J. : 2007) · 2018Article
- Article
- Passive Muscle-Tendon Unit Gearing Is Joint Dependent in Human Medial Gastrocnemius.Frontiers in physiology · 2016Article
- Article
- 3D curvature of muscle fascicles in triceps surae.Journal of applied physiology (Bethesda, Md. : 1985) · 2014Article
- Regional heterogeneity in muscle fiber strain: the role of fiber architecture.Frontiers in physiology · 2014Article
- Myoelectric activity along human gastrocnemius medialis: different spatial distributions of postural and electrically elicited surface potentials.Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology · 2013Article
- Automated regional analysis of B-mode ultrasound images of skeletal muscle movement.Journal of applied physiology (Bethesda, Md. : 1985) · 2012Article
- Differential segmental strain during active lengthening in a large biarticular thigh muscle during running.The Journal of experimental biology · 2011Article
- Functional and architectural complexity within and between muscles: regional variation and intermuscular force transmission.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2011Review
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
Locomotion arises from the complex and coordinated function of limb muscles. Yet muscle function is dynamic over the course of a single stride and between strides for animals moving at different speeds or on variable terrain. While it is clear that motor unit recruitment can vary between and within muscles, we know little about how work is distributed within and between muscles under in vivo conditions. Here we show that the lateral gastrocnemius (LG) of helmeted guinea fowl (Numida meleagris) performs considerably more work than its synergist, the medial gastrocnemius (MG) and that the proximal region of the MG (pMG) performs more work than the distal region (dMG). Positive work done by the LG was approximately twice that of the proximal MG when the birds walked at 0.5 ms -1, and four times when running at 2.0 m s-1. This is probably due to different moments at the knee, as well as differences in motor unit recruitment. The dMG performed less work than the pMG because its apparent dynamic stiffness was greater, and because it exhibited a greater recruitment of slow-twitch fibres. The greater compliance of the pMG leads to increased stretch of its fascicles at the onset of force, further enhancing force production. Our results demonstrate the capacity for functional diversity between and within muscle synergists, which increases with changes in gait and speed.
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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.