Results 21 to 30 of about 117,118 (314)

Fast and slow twitch units in a human muscle [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 1971
A study has been made of the isometric twitches of single motor units in the extensor hallucis brevis (EHB) muscle in man. The twitch contraction times ranged from 35 to 98 msec and the pooled results indicated the presence of at least two types of unit.
R E, Sica, A J, McComas
openaire   +2 more sources

KMT5B is required for early motor development

Frontiers in Genetics, 2022
Disruptive variants in lysine methyl transferase 5B (KMT5B/SUV4-20H1) have been identified as likely-pathogenic among humans with neurodevelopmental phenotypes including motor deficits (i.e., hypotonia and motor delay). However, the role that this enzyme
Jason Hulen, Dorothy Kenny, Rebecca Black, Jodi Hallgren, Kelley G. Hammond, Eric C. Bredahl, Rochelle N. Wickramasekara, Rochelle N. Wickramasekara, Peter W. Abel, Holly A. F. Stessman   +9 more
doaj   +1 more source

Exploring the super-relaxed state of myosin in myofibrils from fast-twitch, slow-twitch, and cardiac muscle

Journal of Biological Chemistry, 2022
Muscle myosin heads, in the absence of actin, have been shown to exist in two states, the relaxed (turnover ∼0.05 s−1) and super-relaxed states (SRX, 0.005 s−1) using a simple fluorescent ATP chase assay (Hooijman, P. et al (2011) Biophys.
Jonathan Walklate, Kerry Y Kao, M. Regnier, M. Geeves   +3 more
semanticscholar   +1 more source

Impact of TIEG1 on the structural properties of fast- and slow-twitch skeletal muscle. [PDF]

Muscle & nerve, 2017
Transforming growth factor-beta (TGF-β)-inducible early gene-1 (TIEG1) is a transcription factor that is highly expressed in skeletal muscle. The purpose of this study was to characterize the structural properties of both fast-twitch (EDL) and slow-twitch (soleus) muscles in the hindlimb of TIEG1-deficient (TIEG1-/- ) mice.Ten slow and 10 fast muscles ...
Kammoun, Malek, Même, William, Même, Sandra, Subramaniam, Malayannam, Hawse, John, Canon, Francis, Bensamoun, Sabine   +6 more
openaire   +4 more sources

Dietary lycopene supplementation improves meat quality, antioxidant capacity and skeletal muscle fiber type transformation in finishing pigs

Animal Nutrition, 2022
This study aimed to investigate effects of dietary lycopene supplementation on meat quality, antioxidant ability and muscle fiber type transformation in finishing pigs.
Wanxue Wen, Xiaoling Chen, Zhiqing Huang, Daiwen Chen, Bing Yu, Jun He, Yuheng Luo, Hui Yan, Hong Chen, Ping Zheng, Jie Yu   +10 more
doaj   +1 more source

Actions of caffeine on fast‐ and slow‐twitch muscles of the rat. [PDF]

The Journal of Physiology, 1989
1. The effects of caffeine (0.2‐20 mmol l‐1) have been examined on calcium transients (measured with aequorin) and isometric force in intact bundles of fibres from soleus (slow‐twitch) and extensor digitorum longus (EDL; fast‐twitch) muscles of the rat. 2.
M W, Fryer, I R, Neering
openaire   +2 more sources

“Biqi” Bayberry Extract Promotes Skeletal Muscle Fiber Type Remodeling by Increasing Fast Myofiber Formation via the Akt/FoxO1 Pathway in Mice

Foods, 2023
Bayberry is known to be a rich source of natural flavonoids and has been reported to have various health-promoting abilities. However, its function on regulating skeletal muscle fiber type remains unclear.
Jinjie Li, Yi Li, Xiangying Suo, Jiangtao Li, Da Huang, Guangning Kou   +5 more
doaj   +1 more source

Role of the JP45-Calsequestrin Complex on Calcium Entry in Slow Twitch Skeletal Muscles [PDF]

, 2016
We exploited a variety of mouse models to assess the roles of JP45-CASQ1 (CASQ, calsequestrin) and JP45-CASQ2 on calcium entry in slow twitch muscles.
Treves S, Treves, Susan, TREVES, Susan Nella, Protasi F, De Negri M4, Bongianino, Rossana, Bergamelli L, De Negri M, Bongianino R4, Mosca B, Priori, Silvia G., Priori SG, Zorzato, Francesco, Eckhardt J, Eckhardt, Jan, Mosca, Barbara, Bergamelli, Leda, Protasi F6, PRIORI, SILVIA GIULIANA, Zorzato F, De Negri, Marco, Eckhardt J2, Protasi, Feliciano, Bongianino R, Priori SG5   +24 more
core   +1 more source

Energetics of fast‐ and slow‐twitch muscles of the mouse.

The Journal of Physiology, 1993
1. The energetic cost of work performance by mouse fast‐ and slow‐twitch muscle was assessed by measuring the rates of thermal and mechanical energy liberation of the muscles at 21 degrees C. Thermal energy (heat) liberation was measured using a fast‐responding thermopile. 2.
Barclay, C. J., Constable, J. K., Gibbs, C. L.   +2 more
openaire   +6 more sources

Noninvasive Estimation of Myosin Heavy Chain Composition in Human Skeletal Muscle [PDF]

, 2011
Purpose: Information on muscle fiber type composition is of great importance in muscle physiology and athletic performance. Because there are only a few techniques available that noninvasively and accurately provide an estimate of muscle fiber type ...
Rittweger, Jörn, JÖRN RITTWEGER, IGOR B. MEKJAVIĆ, Pisot, Rado, BOŠTJAN ŠIMUNIČ, Degens, Hans, Narici, M., Mekjavic, Igor, RADO PIŠOT, Pišot, R., MARCO NARICI, Degens, H., Simunic, Bostjan, Simunič, B., HANS DEGENS, Narici, Marco, Mekjavić, I. B., Rittweger, J.   +17 more
core   +1 more source