Measurement of human Gracilis muscle isometric forces as a function of knee angle, intraoperatively

Yücesoy, Can A.; Ateş, Filiz; Akgün, Umut; Karahan, Mustafa

doi:10.1016/j.jbiomech.2010.06.002

Cited by 32 publications

(23 citation statements)

References 43 publications

(51 reference statements)

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“…Operational joint range of force exertion of the spastic muscle stimulated alone was not narrow and the maximal muscle forces were available at intermediate or higher lengths indicating no abnormal muscular mechanics. These results even show a qualitative similarity with the previously reported forces of healthy GRA muscle tested during anterior cruciate ligament reconstruction surgery (Yucesoy et al, 2010a). Epimuscular myofascial force transmission (EMFT) Yucesoy et al, 2010b) causes mechanical interaction between activated muscles.…”

Section: Introductionsupporting

confidence: 87%

“…Substantial inter-subject variability has been shown in measurements of human muscle forces in previous experiments (Ates et al, 2013b;Smeulders et al, 2005;Yucesoy et al, 2010a) and also in this work. Intraoperative testing makes it possible to measure muscle forces directly at the tendon and allows for an awareness of such variability.…”

Section: Discussionsupporting

confidence: 71%

“…Third, variability across limbs obscures statistical analyses for the force changes to obtain a general message. Length history effects can cause a change (predominantly a decrease) in muscle force at low length due to previous activity at high length as it was shown in the rat (Huijing and Baan, 2001;Yucesoy et al, 2010b) and human muscles (Yucesoy et al, 2010a). Note that in condition I the knee was at flexed positions.…”

Section: Discussionmentioning

confidence: 88%

“…Therefore, we cannot confirm that it was maximally stimulated for each limb and variability in stimulation of this muscle may be responsible for variability of the effects among different limbs. However, muscle stimulation protocols employed were assessed critically and reliable parameters for tetanizing the muscle were determined (Yucesoy et al, 2010a). Therefore, we expect that variability could only be limited among different limbs and trivial within each limb.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, such effects can be considered as a potential source of variability. The reader is referred to Yucesoy et al (2010a) for a full addressing of limitations of intraoperative testing and variability of force measurements.…”

Section: Discussionmentioning

confidence: 99%

See 4 more Smart Citations

Intraoperative experiments show relevance of inter-antagonistic mechanical interaction for spastic muscle's contribution to joint movement disorder

Ateş

Temelli

Yücesoy

2014

Clinical Biomechanics

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Section: Introductionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Intraoperative experiments show relevance of inter-antagonistic mechanical interaction for spastic muscle's contribution to joint movement disorder

Ateş

Temelli

Yücesoy

2014

Clinical Biomechanics

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Experiments meet simulations: Understanding skeletal muscle mechanics to address clinical problems

Ateş,

Röhrle

2024

GAMM-Mitteilungen

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This article aims to present some novel experimental approaches and computational methods providing detailed insights into the mechanical behavior of skeletal muscles relevant to clinical problems associated with managing and treating musculoskeletal diseases. The mechanical characterization of skeletal muscles in vivo is crucial for better understanding of, prevention of, or intervention in movement alterations due to exercise, aging, or pathologies related to neuromuscular diseases. To achieve this, we suggest an intraoperative experimental method including direct measurements of human muscle forces supported by computational methodologies. A set of intraoperative experiments indicated the major role of extracellular matrix (ECM) in spastic cerebral palsy. The force data linked to joint function are invaluable and irreplaceable for evaluating individual muscles however, they are not feasible in many situations. Three‐dimensional, continuum‐mechanical models provide a way to predict the exerted muscle forces. To obtain, however, realistic predictions, it is important to investigate the muscle not by itself, but embedded within the respective musculoskeletal system, for example, a 6‐muscle upper arm model, and the ability to obtain non‐invasively, or at least, minimally invasively material parameters for continuum‐mechanical skeletal muscle models, for example, by presently proposed homogenization methodologies. Botulinum toxin administration as a treatment option for spasticity is exemplified by combining experiments with modeling to find out the mechanical outcomes of altered ECM and the controversial effects of the toxin. The potentials and limitations of both experimental and modeling approaches and how they need each other are discussed.

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Biomedical Engineering and Orthopedic Sports Medicine

Ateş¹,

Heybeli²,

Yücesoy³

2015

Sports Injuries

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Measurement of human Gracilis muscle isometric forces as a function of knee angle, intraoperatively

Cited by 32 publications

References 43 publications

Intraoperative experiments show relevance of inter-antagonistic mechanical interaction for spastic muscle's contribution to joint movement disorder

Intraoperative experiments show relevance of inter-antagonistic mechanical interaction for spastic muscle's contribution to joint movement disorder

Experiments meet simulations: Understanding skeletal muscle mechanics to address clinical problems

Biomedical Engineering and Orthopedic Sports Medicine

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