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Literature DB >> 17551750

Passive force enhancement in single myofibrils.

V Joumaa¹, D E Rassier, T R Leonard, W Herzog.

Abstract

The purpose of this study was to gain further insight into passive force enhancement by testing whether passive force enhancement occurs in single myofibrils. Myofibrils (n = 6) isolated from rabbit psoas muscle were fixed at a sarcomere length of 2.4 microm, and then stretched passively and actively to a sarcomere length of 3.4 microm. Passive force after deactivation of the myofibrils was increased after active compared to passive stretching. Therefore, passive force enhancement, previously observed in muscle and fiber preparations, also occurs in single myofibrils. Passive force enhancement in myofibrils ranged from 86 to 145% of the steady-state force observed after passive stretch. Because titin is the main source of passive force in myofibrils, we propose that titin might be responsible for passive force enhancement observed in myofibrils. We propose that this might occur through an increase in stiffness when calcium concentration increases upon activation.

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Year: 2007 PMID： 17551750 DOI： 10.1007/s00424-007-0287-2

Source DB: PubMed Journal: Pflugers Arch ISSN： 0031-6768 Impact factor: 3.657

31 in total

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Authors: R Tatsumi; K Maeda; A Hattori; K Takahashi
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10. New insights into the passive force enhancement in skeletal muscles.

Authors: Eun-Jeong Lee; Venus Joumaa; Walter Herzog
Journal: J Biomech Date: 2006-11-13 Impact factor: 2.712

24 in total

Review 1. The mechanisms of the residual force enhancement after stretch of skeletal muscle: non-uniformity in half-sarcomeres and stiffness of titin.

Authors: Dilson E Rassier
Journal: Proc Biol Sci Date: 2012-04-25 Impact factor: 5.349

Review 2. Developing maximal neuromuscular power: Part 1--biological basis of maximal power production.

Authors: Prue Cormie; Michael R McGuigan; Robert U Newton
Journal: Sports Med Date: 2011-01-01 Impact factor: 11.136

3. Residual force enhancement in myofibrils and sarcomeres.

Authors: V Joumaa; T R Leonard; W Herzog
Journal: Proc Biol Sci Date: 2008-06-22 Impact factor: 5.349

Review 4. Non-crossbridge forces in activated striated muscles: a titin dependent mechanism of regulation?

Authors: Dilson E Rassier; Felipe S Leite; Marta Nocella; Anabelle S Cornachione; Barbara Colombini; Maria Angela Bagni
Journal: J Muscle Res Cell Motil Date: 2014-11-25 Impact factor: 2.698

Review 5. Passive force enhancement in striated muscle.

Authors: Walter Herzog
Journal: J Appl Physiol (1985) Date: 2019-05-09

6. Residual force enhancement: the neglected property of striated muscle contraction.

Authors: Walter Herzog; Tim R Leonard
Journal: J Physiol Date: 2013-04-15 Impact factor: 5.182

Review 7. Stiffness, working stroke, and force of single-myosin molecules in skeletal muscle: elucidation of these mechanical properties via nonlinear elasticity evaluation.

Authors: Motoshi Kaya; Hideo Higuchi
Journal: Cell Mol Life Sci Date: 2013-05-18 Impact factor: 9.261

8. Reply to "Letter to the editor: Comments on Cornachione et al. (2016): "The increase in non-cross-bridge forces after stretch of activated striated muscle is related to titin isoforms".

Authors: Dilson E Rassier
Journal: Am J Physiol Cell Physiol Date: 2016-07-01 Impact factor: 4.249

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Authors: Dilson E Rassier
Journal: Proc Biol Sci Date: 2008-11-22 Impact factor: 5.349

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Authors: Mark S Miller; Bertrand C W Tanner; Lori R Nyland; Jim O Vigoreaux
Journal: J Biomed Biotechnol Date: 2010-06-06