Sarcomere 'give' during stretch of frog single muscle fibres with added series compliance.
Stretch of active whole muscle causes a sudden yielding of the sarcomeres when the actin and myosin filaments are displaced by 10-12 nm from their isometric position. This behaviour is not normally seen during stretch of singly-dissected fibres, but it can be induced by introducing series compliance into the system.
Bottinelli
R
R
Department of Biology & Preclinical Medicine, University of St Andrews, Fife.
Eastwood
J C
JC
Flitney
F W
FW
D000818:Animals; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009210:Myofibrils / Q000166:cytology / Q000502:physiology*; D011896:Rana temporaria; D012518:Sarcomeres / Q000502:physiology*