Results 21 to 30 of about 1,945,583 (386)

Activation analysis of the lower limb muscles of cyclists during pedaling

Nihon Kikai Gakkai ronbunshu, 2020
It is important to elucidate the lower limb motion based on the activation of lower limb muscles during pedaling to improve pedaling performance of cyclists.
Toru TSUMUGIWA, Shinya KADOTA, Ryuichi YOKOGAWA   +2 more
doaj   +1 more source

The Interacting Head Motif Structure Does Not Explain the X-Ray Diffraction Patterns in Relaxed Vertebrate (Bony Fish) Skeletal Muscle and Insect (Lethocerus) Flight Muscle

Biology, 2019
Unlike electron microscopy, which can achieve very high resolution but to date can only be used to study static structures, time-resolved X-ray diffraction from contracting muscles can, in principle, be used to follow the molecular movements involved in ...
Carlo Knupp, Edward Morris, John M. Squire   +2 more
doaj   +1 more source

The p21‐activated kinase 2 (PAK2), but not PAK1, regulates contraction‐stimulated skeletal muscle glucose transport

Physiological Reports, 2020
Aim Muscle contraction stimulates skeletal muscle glucose transport. Since it occurs independently of insulin, it is an important alternative pathway to increase glucose transport in insulin‐resistant states, but the intracellular signaling mechanisms ...
Lisbeth L. V. Møller, Ida L. Nielsen, Jonas R. Knudsen, Nicoline R. Andersen, Thomas E. Jensen, Lykke Sylow, Erik A. Richter   +6 more
doaj   +1 more source

Voluntary Muscle Contraction Detection Algorithm Based on LSTM for Muscle Quality Measurement Algorithm

Applied Sciences, 2021
In this paper, we propose the long–short-term memory (LSTM)-based voluntary and non-voluntary (VNV) muscle contraction classification algorithm in an electrical stimulation (ES) environment.
Kwangsub Song, Sangui Choi, Hooman Lee
doaj   +1 more source

The energy of muscle contraction. II. Transverse compression and work [PDF]

, 2020
In this study we reproduced this compression-induced reduction in muscle force through the use of a three-dimensional finite element model of contracting muscle. The model used the principle of minimum total energy and allowed for the redistribution of energy through different strain energy-densities; this allowed us to determine the importance of the ...
arxiv   +1 more source

Ultrasound assessment of pelvic floor muscle contraction: reliability and development of an ultrasound‐based contraction scale

Ultrasound in Obstetrics and Gynecology, 2019
To determine intra‐ and interrater reliability and agreement for ultrasound measurements of pelvic floor muscle contraction and to assess the correlation between ultrasound and vaginal palpation.
M. Nyhus, S. Oversand, S. Oversand, Ø. Salvesen, K. Salvesen, S. Mathew, I. Volløyhaug   +6 more
semanticscholar   +1 more source

The Work of Titin Protein Folding as a Major Driver in Muscle Contraction.

Annual Review of Physiology, 2018
Single-molecule atomic force microscopy and magnetic tweezers experiments have demonstrated that titin immunoglobulin (Ig) domains are capable of folding against a pulling force, generating mechanical work that exceeds that produced by a myosin motor. We
Edward C. Eckels, R. Tapia-Rojo, J. A. Rivas-Pardo, Julio M. Fernandez   +3 more
semanticscholar   +1 more source

Isometric contraction induces transient increase of REDD1 expression in non‐contracted muscles partly through glucocorticoids

Physiological Reports, 2023
This study investigated whether muscle contraction induces expression of regulated in development and DNA damage 1 (REDD1), a potent inhibitor of mTORC1, in mice muscle.
Taro Murakami
doaj   +1 more source

The energy of muscle contraction. I. Tissue force and deformation during isometric contractions [PDF]

, 2020
During contraction the energy of muscle tissue increases due to energy from the hydrolysis of ATP. This energy is distributed across the tissue as strain-energy potentials in the contractile elements, strain-energy potential from the 3D deformation of the base-material tissue (containing cellular and ECM effects), energy related to changes in the ...
arxiv   +1 more source

Mechanisms of Vascular Smooth Muscle Contraction and the Basis for Pharmacologic Treatment of Smooth Muscle Disorders

Pharmacological Reviews, 2016
The smooth muscle cell directly drives the contraction of the vascular wall and hence regulates the size of the blood vessel lumen. We review here the current understanding of the molecular mechanisms by which agonists, therapeutics, and diseases ...
F. Brozovich, C. Nicholson, Chantal V. Degen, Yuan Z. Gao, M. Aggarwal, K. Morgan   +5 more
semanticscholar   +1 more source