Failure sites and peak tensile forces of the composite triceps surae muscle by passive extension in the rabbit
Journal
Clinical Biomechanics
Journal Volume
9
Journal Issue
5
Pages
310-314
Date Issued
1994
Author(s)
Abstract
The triceps surae muscle-tendon unit of rabbit was tested by a passive extension technique. The effects of different stretch rates were evaluated. Functioning as a composite muscle-tendon unit, the triceps surae responded viscoelastically to the tensile loads. The sites of failure were consistent at the muscular portion near the musculotendinous junction. Failure occurred within 0.1-1.0 mm of the distal musculotendinous junction for the soleus muscle and within 5-10 mm proximal to the distal musculotendinous junction in the lateral head of gastrocnemius muscle. In the medial head of gastrocnemius muscle failure occurred within 15-30 mm proximal to the distal musculotendinous junction. There was a greater peak tensile force requirement and a greater energy absorption when tested with faster stretch rates. These results furnish evidence that the biomechanical property of composite musculotendinous unit is strain-rate dependent and behaves viscoelastically. © 1994.
SDGs
Other Subjects
Biomechanics; Energy absorption; Failure (mechanical); Loads (forces); Strain; Tendons; Viscoelasticity; Muscletendon unit; Passive extension; Pathophysiology; Rabbits; Tensile forces; Muscle; animal experiment; article; biomechanics; controlled study; energy consumption; force; gastrocnemius muscle; muscle stretching; nonhuman; priority journal; rabbit; soleus muscle; tendon; tensile strength; triceps surae muscle; viscoelasticity
Type
journal article