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Keywords: Shortening velocityClose
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...
SaiLavanyaa Sundar, Barbora Rimkus, Prabath S. Meemaduma, Samuel deLap, Nicholas LaFave, Alice W. Racca, Pabodha Hettige, Jeffrey Moore, Matthew Gage, Andrea Shehaj, Nicolai Konow
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
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
Luana Toniolo, Marco Patruno, Lisa Maccatrozzo, Maria A. Pellegrino, Monica Canepari, Rosetta Rossi, Giuseppe D'Antona, Roberto Bottinelli, Carlo Reggiani, Francesco Mascarello
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...
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...
J Exp Biol (1998) 201 (10): 1527–1540.
Published: 15 May 1998
...Graham N. Askew; Richard L. Marsh ABSTRACT The force–velocity relationship has frequently been used to predict the shortening velocity that muscles should use to generate maximal net power output. Such predictions ignore other well-characterized intrinsic properties of the muscle...
J Exp Biol (1997) 200 (14): 1965–1973.
Published: 1 July 1997
... of cardiac muscle . Cardiovasc. Res . 20 , 117 – 123 . 10.1093/cvr/20.2.117 Ricciardi , L. , Bottinelli , R. , Canepari , M. and Reggiani , C. ( 1994 ). Effects of acidosis on maximum shortening velocity and force–velocity relation of skinned rat cardiac muscle . J. molec...
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...
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...
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...
J Exp Biol (1985) 119 (1): 31–40.
Published: 1 November 1985
...T. Tsuchiya ABSTRACT The maximum shortening velocity of the longitudinal retractor muscle of the holothurian, Isostichopus badionotus , was measured using a ‘slack test’ in solutions of normal, increased and reduced osmotic strength. At normal osmotic strength, the average maximum shortening...