Results 11 to 20 of about 43,102 (265)

Are the antagonist muscle fatigued during a prolonged isometric fatiguing elbow flexion at very low forces for young adults?

Frontiers in Physiology, 2022
The aim of this study was to examine whether antagonist muscles may be fatigued during a prolonged isometric fatiguing elbow flexion at very low forces.
Lejun Wang, Xiaoqian Song, Hua Yang, Ce Wang, Qineng Shao, Haifeng Tao, Minjie Qiao, Wenxin Niu, Xiaodong Liu   +8 more
doaj   +1 more source

Insights From Computational Modeling Into the Contribution of Mechano-Calcium Feedback on the Cardiac End-Systolic Force-Length Relationship

Frontiers in Physiology, 2020
In experimental studies on cardiac tissue, the end-systolic force-length relation (ESFLR) has been shown to depend on the mode of contraction: isometric or isotonic.
Megan E. Guidry, David P. Nickerson, Edmund J. Crampin, Edmund J. Crampin, Martyn P. Nash, Martyn P. Nash, Denis S. Loiselle, Denis S. Loiselle, Kenneth Tran   +8 more
doaj   +1 more source

Effect of hip adduction/abduction contraction on pelvic floor in young healthy women

Journal of Physical Fitness and Sports Medicine, 2022
Pelvic floor muscle training has been reported to be effective in preventing and improving urinary incontinence. Patients must learn to perform pelvic floor muscle contractions without pushing down the pelvic floor by contracting other muscle groups ...
Hiroyo Kamio, Hitoshi Maruyama, Nozomi Ito, Mako Kunieda, Ayaka Chiba, Yorimitsu Furukawa   +5 more
doaj   +1 more source

Influence of Joint Angle on Residual Force Enhancement in Human Plantar Flexors

Frontiers in Physiology, 2017
Compared to pure isometric contractions, isometric muscle force at a given length is larger when the eccentric contraction is conducted before the isometric contraction.
Atsuki Fukutani, Atsuki Fukutani, Atsuki Fukutani, Jun Misaki, Tadao Isaka   +4 more
doaj   +1 more source

Regional Differences in Biceps Femoris Long Head Stiffness during Isometric Knee Flexion

Journal of Functional Morphology and Kinesiology, 2021
This study sought to investigate whether the stiffness of the biceps femoris long head differs between proximal and distal regions during isometric knee flexion at different contraction intensities and muscle lengths. Twelve healthy individuals performed
João R. Vaz, Tiago Neto, José Pedro Correia, Jorge Infante, Sandro R. Freitas   +4 more
doaj   +1 more source

Perceived force in fatiguing isometric contractions [PDF]

Perception & Psychophysics, 1983
An integrative approach emphasizing both psychological and physiological components in force perception has started to emerge in motor psychophysics. In this experiment, the relation between isometric force (produced by the elbow flexors~ and perceived force was examined over a range of forces maintained until maximal endurance.
L A, Jones, I W, Hunter
openaire   +2 more sources

Fatigue Related Changes in Electromyographic Coherence between Homologous Vastus Lateralis Muscles

Baltic Journal of Sport and Health Sciences, 2019
Background. The aim of this study was to examine changes in the coherence between EMG signals of homologous quadriceps (vastus lateralis, VL) muscles during in the beginning and the end of multiple sustained isometric bilateral contraction at maximal ...
Andrius Šatas, Giedrė Jurgelaitienė, Albertas Skurvydas   +2 more
doaj   +1 more source

Gender differences in cardiovascular response to upper extremities isometric exercise in normotensive young subjects

National Journal of Physiology, Pharmacy and Pharmacology, 2021
Background: Isometric exercises are a part of our activities and many occupational task. Isometric exercises produce a characteristic increase in blood pressure (BP).
Ayesha Anjum, Vanajakshi B J
doaj   +1 more source

Effects of low-intensity and short-duration isometric contraction after static stretching on range of motion, passive stiffness, and isometric muscle force

Journal of Physical Fitness and Sports Medicine, 2020
Although static stretching is commonly performed to improve flexibility, it has been reported to have detrimental effects on muscle force and performance.
Shin Goto, Shingo Matsuo, Masahiro Iwata, Wakako Tsuchida, Genki Hatano, Satoshi Kataura, Yasuhiro Banno, Yuji Asai, Shigeyuki Suzuki   +8 more
doaj   +1 more source

Localized Electrical Impedance Myography of the Biceps Brachii Muscle during Different Levels of Isometric Contraction and Fatigue

Sensors, 2016
This study assessed changes in electrical impedance myography (EIM) at different levels of isometric muscle contraction as well as during exhaustive exercise at 60% maximum voluntary contraction (MVC) until task failure.
Le Li, Henry Shin, Xiaoyan Li, Sheng Li, Ping Zhou   +4 more
doaj   +1 more source