Results 111 to 120 of about 126,384 (221)

Detecting muscle activation using ultrasound speed of sound inversion with deep learning [PDF]

arXiv, 2019
Functional muscle imaging is essential for diagnostics of a multitude of musculoskeletal afflictions such as degenerative muscle diseases, muscle injuries, muscle atrophy, and neurological related issues such as spasticity. However, there is currently no solution, imaging or otherwise, capable of providing a map of active muscles over a large field of ...
arxiv  

Frataxin deficiency alters gene expression in Friedreich ataxia derived IPSC‐neurons and cardiomyocytes

Molecular Genetics &Genomic Medicine, Volume 11, Issue 1, January 2023., 2023
FA is a progressive neurodegenerative disorder, but the primary cause of death is heart disease which occurs in 60% of the patients. Several functions of frataxin have been proposed, but none of them fully explain why its deficiency causes the FA phenotypes nor why the most affected cell types are neurons and cardiomyocytes.
Mariana B. Angulo, Alexander Bertalovitz, Mariana A. Argenziano, Jiajia Yang, Aarti Patel, Theresa Zesiewicz, Thomas V. McDonald   +6 more
wiley   +1 more source

Slow Limb Movements Require Precise Control of Muscle Stiffness [PDF]

arXiv, 2015
Slow and accurate finger and limb movements are essential to daily activities, but their neural control and governing mechanics are relatively unexplored. We consider neuromechanical systems where slow movements are produced by neural commands that modulate muscle stiffness.
arxiv  

Adaptive Body Schema Learning System Considering Additional Muscles for Musculoskeletal Humanoids [PDF]

One of the important advantages of musculoskeletal humanoids is that the muscle arrangement can be easily changed and the number of muscles can be increased according to the situation. In this study, we describe an overall system of muscle addition for musculoskeletal humanoids and the adaptive body schema learning while taking into account the ...
arxiv   +1 more source

Beta2‐adrenergic agonist salbutamol exhibits enantioselective disposition in skeletal muscle of lean young men following oral administration

Drug Testing and Analysis, EarlyView.
Oral administration of salbutamol shows enantioselective disposition in human skeletal muscle, favoring the (S)‐enantiomer with higher relative partitioning of the pharmacologically active (R)‐enantiomer in muscle. This is concerning from an anti‐doping point of view because the anabolic properties demonstrated for salbutamol can potentially be ...
Morten Hostrup, Glenn A. Jacobson, Kasper Eibye, Christian K. Narkowicz, David S. Nichols, Søren Jessen   +5 more
wiley   +1 more source

Bilateral Signal Warping for Left Ventricular Hypertrophy Diagnosis [PDF]

arXiv
Left Ventricular Hypertrophy (LVH) is a major cardiovascular risk factor, linked to heart failure, arrhythmia, and sudden cardiac death, often resulting from chronic stress like hypertension. Electrocardiography (ECG), while varying in sensitivity, is widely accessible and cost-effective for detecting LVH-related morphological changes.
arxiv  

Skeletal Muscle Memory: An Update From the Antidoping Perspective

Drug Testing and Analysis, EarlyView.
ABSTRACT This narrative review explores the concept of muscle memory, focusing on the physiological and biochemical mechanisms underlying information retention in skeletal muscle tissue as it relates to antidoping. The discussion encompasses the role of satellite cells (SCs) in myonuclei recruitment, resulting in increased myonuclear density and ...
Claire Traversa
wiley   +1 more source

Modified hybrid training and neuromuscular electrical stimulation increase quadriceps femoral and hamstrings muscle hypertrophy in untrained healthy subjects

Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación
Purpose: Low physical activity leads to muscle atrophy due to lack of exercise time and sport facilities. Addressing this issue, there are alternative methods with shorter training time and less equipment to induce muscle hypertrophy which are ...
Johanna Chrestella, R. A. Meisy Andriana, I Putu Alit Pawana, Lydia Arfianti, Abdul Jabbar Al Hayyan, Soenarnatalina Melaniani   +5 more
doaj   +1 more source

The model of circular and longitudinal smooth muscle motions in the motility of intestinal segment [PDF]

arXiv, 2014
Coordination in circular and longitudinal muscle motions are of crucial importance in the motor function of gastrointestinal (GI) tract. Intestinal wall motions depend on myogenic-active properties of smooth muscles layers of intestinal wall, which is the ability to create active contractile forces in response to distension.
arxiv  

Squamate ventricular cardiomyocytes: Ploidy, proliferation, and heart muscle cell size in the leopard gecko (Eublepharis macularius)

Developmental Dynamics, EarlyView.
Abstract Background While heart function is broadly conserved across vertebrates, the cellular phenotype of muscle cells (cardiomyocytes) varies across taxa and throughout ontogeny. Emerging evidence suggests that some attributes may correlate with the capacity for spontaneous cardiomyocyte replacement following injury.
Kathy Jacyniak, Karemna Barrera Jaimes, Minh Hanh Doan, Jordyn M. Chartrand, Matthew K. Vickaryous   +4 more
wiley   +1 more source