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Keywords: skinned fiber
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Journal Articles

Force loss induced by inhibiting cross-bridge cycling is mitigated in eccentric contraction

Atsuki Fukutani, Shiho Kunimatsu, Tadao Isaka
Journal: Journal of Experimental Biology
J Exp Biol (2022) 225 (21): jeb244962.
DOI: https://doi.org/10.1242/jeb.244962
Published: 4 November 2022
... © 2022. Published by The Company of Biologists Ltd 2022 Summary: Eccentric force is relatively preserved compared with isometric force when cross-bridge cycling is inhibited, possibly because of the contribution of the elastic force produced by titin. Soleus Skinned fiber Titin...
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Journal Articles

Hypergravity from conception to adult stage: effects on contractile properties and skeletal muscle phenotype

Cyril Bozzo, Laurence Stevens, Valentine Bouet, Valérie Montel, Florence Picquet, Maurice Falempin, Michel Lacour, Yvonne Mounier
Journal: Journal of Experimental Biology
J Exp Biol (2004) 207 (16): 2793–2802.
DOI: https://doi.org/10.1242/jeb.01076
Published: 15 July 2004
... and plantaris muscles. Long Evans rats were conceived, born and reared (CBR) continuously in hypergravity conditions until the age of 100 days. Whole muscle morphological parameters, Ca 2+ activation characteristics from single skinned fibers, troponin (Tn) subunit and myosin heavy (MHC) and light (MLC) chains...
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Journal Articles

Alternative splicing, muscle contraction and intraspecific variation: associations between troponin T transcripts, Ca 2+ sensitivity and the force and power output of dragonfly flight muscles during oscillatory contraction

James H. Marden, Gail H. Fitzhugh, Mahasweta Girgenrath, Melisande R. Wolf, Stefan Girgenrath
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (20): 3457–3470.
DOI: https://doi.org/10.1242/jeb.204.20.3457
Published: 15 October 2001
... of two TnT transcripts, showed a positive correlation with a 10-fold range of variation in Ca 2+ sensitivity of skinned fibers ( r 2 =0.77, P <0.0001) and a threefold range in peak specific force ( r 2 =0.74, P <0.0001), specific work per cycle ( r 2 =0.54; P <0.0001) and maximum specific power...
View article titled, Alternative splicing, muscle contraction and intraspecific variation: associations between troponin T transcripts, Ca 2+ sensitivity and the force and power output of dragonfly flight muscles during oscillatory contraction
Click here to open pdf in another window PDF for Alternative splicing, muscle contraction and intraspecific variation: associations between troponin T transcripts, Ca 2+ sensitivity and the force and power output of dragonfly flight muscles during oscillatory contraction