Population
Seven New Zealand White rabbits anesthetized with pentobarbital (left digastric muscle)
Comparison
Measurement of active length-tension relation… vs Resting muscle length
Design
Preclinical
Authors
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Pinnation may enhance excursion in pinnate muscle; leaves open translation to human skeletal or cardiac mechanics.
In the rabbit digastric muscle, pinnation enhances the range of muscle excursion, with fibers lengthening 0.77 mm for each 1 mm of muscle belly extension.
Z.F. Muhl (1982) studied this question.
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