In vivo assessment of the passive stretching response of the bicompartmental human semitendinosus muscle using shear-wave elastography

Author:

Kositsky Adam12ORCID,Saxby David J.1ORCID,Lesch Kim J.3ORCID,Barrett Rod S.1ORCID,Kröger Heikki45ORCID,Lahtinen Olli67ORCID,Diamond Laura E.1ORCID,Korhonen Rami K.2ORCID,Stenroth Lauri2ORCID

Affiliation:

1. Griffith Centre of Biomedical and Rehabilitation Engineering (GCORE), Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia

2. Department of Applied Physics, University of Eastern Finland, Kuopio, Finland

3. Sports and Exercise Medicine, Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland

4. Department of Orthopaedics, Traumatology and Hand Surgery, Kuopio University Hospital, Kuopio, Finland

5. Kuopio Musculoskeletal Research Unit (KMRU), Institute of Clinical Medicine, School of Medicine, University of Eastern Finland, Kuopio, Finland

6. Diagnostic Imaging Centre, Department of Clinical Radiology, Kuopio University Hospital, Kuopio, Finland

7. Unit of Clinical Radiology, Institute of Clinical Medicine, School of Medicine, University of Eastern Finland, Kuopio, Finland

Abstract

We conducted an elastography-based investigation of the passive stretching response of the proximal and distal compartments of the human semitendinosus muscle and found no difference in shear modulus-joint angle curves between compartments. We also found that common musculoskeletal models tend to misestimate semitendinosus slack angle, most likely due to typical model assumptions. These results provide an important step toward a better understanding of semitendinosus passive muscle mechanics and improving computational estimates of muscle force.

Funder

Academy of Finland

EC | Erasmus+

Griffith University

International Society of Biomechanics

Publisher

American Physiological Society

Subject

Physiology (medical),Physiology

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