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Keywords: Shortening velocity
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Journal Articles
J Exp Biol (2023) 226 (3): jeb243991.
Published: 10 February 2023
... active shortening, we measured muscle stiffness at optimal muscle length ( L 0 ) and the force response to time-varying activation and length perturbations. We found that muscle stiffness increased with activation but decreased as shortening velocity increased. The slope of the relationship between...
Journal Articles
J Exp Biol (2022) 225 (7): jeb243630.
Published: 12 April 2022
... dampening in fiber shortening velocities for both muscles, underscoring an indirect correlation between V actin and fiber V max that may be influenced by differences in fiber architecture, along with internal loading due to both passive and active effects. These influences correlate with the increased peak...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (11): jeb178160.
Published: 5 June 2018
...: Although the sternohyoideus muscle shortens to generate small amounts of power, bluegill sunfish require large regions of axial musculature – operating at or near maximum power output – to power suction feeding. XROMM Fluoromicrometry Muscle work Muscle power Shortening velocity Fish can...
Includes: Supplementary data
Journal Articles
J Exp Biol (2004) 207 (11): 1875–1886.
Published: 1 May 2004
..., immunohistochemistry and gel electrophoresis were combined to identify and separate four MHC isoforms:MHC-slow and three fast MHC (2A, 2X, 2B). Maximum shortening velocity ( V o ) and isometric tension( P o ) were measured in single muscle fibres with known MHC isoform composition. Six groups of fibres (pure: slow, 2A...
Journal Articles
J Exp Biol (1999) 202 (23): 3369–3375.
Published: 1 December 1999
... increasingly realistic. This work was supported by NSF research grant IBN-9603187. References Askew , G. N. and Marsh , R. L. ( 1998 ). Optimal shortening velocity ( V / V max) of skeletal muscle during cyclic contractions: length-dependent effects and velocity-dependent activation...
Journal Articles
Journal Articles
J Exp Biol (1997) 200 (14): 1965–1973.
Published: 15 July 1997
... T PF T 1/2 pH cardiac function shortening velocity power output muscle In contrast to hearts of vertebrates in general, the hearts of various freshwater turtles exhibit unusual tolerance to anoxia and acidosis. This ability correlates with the anoxia-tolerance of the whole animal...
Journal Articles
J Exp Biol (1994) 187 (1): 275–293.
Published: 1 February 1994
... contraction was about 5 %. The maximum isometric force of the FA was low (about 6 N cm -2 ) but its shortening velocity was high. V m, the maximum shortening velocity determined from isotonic shortening, was 4.0 muscle lengths s −1 ; V 0, the maximum shortening velocity from slack test measurements, was about...
Journal Articles
J Exp Biol (1990) 148 (1): 281–291.
Published: 1 January 1990
... the fibres to shorten under a very small load (<3 % of the force immediately before shortening) at various times after the onset of stimulation. The shortening velocity ( V sl ) was nearly constant during stimulation. After the cessation of stimulation, shortening velocity decreased steeply while...
Journal Articles
J Exp Biol (1988) 140 (1): 187–197.
Published: 1 November 1988
... muscle contraction fish power force-velocity shortening velocity There has been much interest in measuring maximum speed at which fish can swim (burst swimming) (reviewed by Beamish, 1978 ) and in describing the quantitative relationships among the factors that determine the power required...
Journal Articles