Results 91 to 100 of about 2,580,489 (207)

Changes in motor unit conduction velocity after unilateral lower‐limb suspension and active recovery are correlated with muscle ion channel gene expression

Experimental Physiology, EarlyView.
Abstract The effects of muscle disuse on the propagation of action potentials along motor unit (MU) muscle fibres, a key process for effective muscle activation and force generation, remain poorly understood. The aim of this study was to investigate changes in action potential propagation and to identify biological factors influencing these changes ...
Giacomo Valli, Fabio Sarto, Francesco Negro, Elena Monti, Giuseppe Sirago, Matteo Paganini, Sandra Zampieri, Martino V. Franchi, Andrea Casolo, Julián Candia, Luigi Ferrucci, Marco V. Narici, Giuseppe De Vito   +12 more
wiley   +1 more source

Aquaporin-4 expression in distal myopathy with rimmed vacuoles

BMC Neurology, 2012
Background Distal myopathy with rimmed vacuoles/hereditary inclusion body myopathy is clinically characterized by the early involvement of distal leg muscles. The striking pathological features of the myopathy are muscle fibers with rimmed vacuoles.
Hoshi Akihiko, Yamamoto Teiji, Kikuchi Saeko, Soeda Tomoko, Shimizu Keiko, Ugawa Yoshikazu   +5 more
doaj   +1 more source

Heat treatment combined with hybrid exercises retraining mitigates cellular markers of protein turnover after hindlimb suspension in male mice: A pilot study

Experimental Physiology, EarlyView.
Abstract Recent evidence suggests that heat treatment (HT) and resistance training can limit skeletal muscle mass loss during immobilization. However, the effects of repeated HT sessions combined with hybrid exercises (EX), which promote both endurance and resistance responses, on muscle protein turnover following hindlimb unloading (HU) remain ...
Tom Normand‐Gravier, Robert Solsona, Christelle Bertrand‐Gaday, Margot Issertine, Florence Sabatier, Flavie Arnould, Sébastien Racinais, Fabio Borrani, Henri Bernardi, Anthony M. J. Sanchez   +9 more
wiley   +1 more source

Differentiation and fiber type-specific activity of a muscle creatine kinase intronic enhancer

Skeletal Muscle, 2011
Background Hundreds of genes, including muscle creatine kinase (MCK), are differentially expressed in fast- and slow-twitch muscle fibers, but the fiber type-specific regulatory mechanisms are not well understood. Results Modulatory region 1 (MR1) is a 1-
Tai Phillip WL, Fisher-Aylor Katherine I, Himeda Charis L, Smith Catherine L, MacKenzie Alexandra P, Helterline Deri L, Angello John C, Welikson Robert E, Wold Barbara J, Hauschka Stephen D   +9 more
doaj   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

Experimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López, Raúl Caulier‐Cisterna, Benjamín Díaz‐Ortiz, Cristóbal Baumann‐Biancani, Kamilo Hunger‐Abbott, Matías Herrera‐Matas, Andrés Vega‐Moraga, Vitor A. Lira, Maximiliano Espinosa‐Ramírez, Karol Ramírez‐Parada, Luigi Gabrielli‐Nervi, Hugo E. Verdejo, Felipe Contreras‐Briceño   +12 more
wiley   +1 more source

Unchanged content of oxidative enzymes in fast-twitch muscle fibers and V˙O2 kinetics after intensified training in trained cyclists. [PDF]

, 2016
PublishedJournal ArticleThe present study examined if high intensity training (HIT) could increase the expression of oxidative enzymes in fast-twitch muscle fibers causing a faster oxygen uptake (V˙O2) response during intense (INT), but not moderate (MOD)
Gunnarsson, TP, Wilkerson, DP, Nielsen, JJ, Bangsbo, J, Thomassen, M, Christensen, PM   +5 more
core   +1 more source

Effects of bed rest and immobilization on intramuscular and intermuscular adipose tissue: A systematic review

Experimental Physiology, EarlyView.
Abstract Muscle disuse caused by bed rest and immobilization is associated with muscle atrophy and insulin resistance, which might be related to increases in intramuscular fat (IntraMAT) and intermuscular fat (InterMAT) accumulation. In this systematic review, we compiled evidence on the effects of bed rest and unilateral lower‐limb immobilization on ...
Konstantinos Prokopidis, Julia Margarita Reyes, Gustavo Duque   +2 more
wiley   +1 more source

Gut microbiota-mediated betaine regulates skeletal muscle fiber type transition by affecting m6A RNA methylation and Myh7 expression

Gut Microbes
Skeletal muscle fiber composition is essential for maintaining muscle function and overall health. Growing evidence underscores the pivotal role of the gut-muscle axis in mediating the influence of gut microbiota on skeletal muscle development.
Chao Yan, Yilong Yao, Zhaobo Zhang, Fanqinyu Li, Danyang Fan, Wen Liu, Xinhao Fan, Lingna Xu, Yanwen Liu, Shilong Wang, Mengling Hu, Yalan Yang, Zhonglin Tang   +12 more
doaj   +1 more source

Mitochondrial capacities and quality control following short‐ and long‐term weight restoration after simulated anorexia nervosa

Experimental Physiology, EarlyView.
Abstract Anorexia nervosa (AN) is a psychiatric disorder characterized by prolonged caloric restriction and skeletal muscle atrophy. Mitochondrial health is a key mediator of muscle function, yet the role of mitochondria during AN and following weight regain has not been investigated. The objective of this study was to evaluate mitochondrial capacities
Megan E. Rosa‐Caldwell, Toby L. Chambers, Lauren Breithaupt, Ruqaiza Muhyudin, Patience Salvalina Okoto, Sadie R. Thompson, Emily E. Rothacker, Claire Greenhill, Katie A. Wood, Kevin A. Murach, Sarah H. White‐Springer, Ursula B. Kaiser, Seward B. Rutkove   +12 more
wiley   +1 more source

Differential Energy Metabolism in Skeletal Muscle Tissues of Yili Horses Based on Targeted Metabolomics and Transcriptomics Analysis

Biology
Skeletal muscle is the largest organ system in mammals. To investigate the differences in energy metabolism across various skeletal muscles in Yili horses, this study examined muscle fiber type distributions through immunohistochemical staining of ...
Xueyan Li, Chen Meng, Yuheng Xue, Zhehong Shen, Wanlu Ren, Yaqi Zeng, Jun Meng   +6 more
doaj   +1 more source