Results 31 to 40 of about 4,017,981 (345)

Surgeons' posture and muscle strain during laparoscopic and robotic surgery

British Journal of Surgery, 2020
It is assumed that conventional laparoscopy (LAP) and robotic‐assisted laparoscopic surgery (RALS) differ in terms of the surgeon's comfort. This study compared muscle workload, work posture and perceived physical exertion of surgeons performing LAP or ...
Tina Dalager, Tina Dalager, P. T. Jensen, P. T. Jensen, P. T. Jensen, J. R. Eriksen, Henrik Jakobsen, O. Mogensen, Karen Søgaard, Karen Søgaard   +9 more
semanticscholar   +1 more source

The Comparison of Different Stretching Intensities on the Range of Motion and Muscle Stiffness of the Quadriceps Muscles

Frontiers in Physiology, 2021
Muscle strain is one of the most frequent sports injuries, having the rectus femoris (RF) muscle as the reported preferred site of quadriceps muscle strain. The decrease muscle stiffness could be an effective RF muscle strain prevention.
Masatoshi Nakamura, Masatoshi Nakamura, Shigeru Sato, Yuta Murakami, Ryosuke Kiyono, Kaoru Yahata, Futaba Sanuki, Riku Yoshida, Taizan Fukaya, Taizan Fukaya, Kosuke Takeuchi   +10 more
doaj   +1 more source

The Effects of Varying Glenohumeral Joint Angle on Acute Volume Load, Muscle Activation, Swelling, and Echo-Intensity on the Biceps Brachii in Resistance-Trained Individuals

Sports, 2019
There is a paucity of data on how manipulating joint angles during isolation exercises may impact overall session muscle activation and volume load in resistance-trained individuals.
Christopher Barakat, Renato Barroso, Michael Alvarez, Jacob Rauch, Nicholas Miller, Anton Bou-Sliman, Eduardo O. De Souza   +6 more
doaj   +1 more source

A Personalized Muscle-Tendon Assessment and Exercise Prescription Concept Reduces Muscle-Tendon Imbalances in Female Adolescent Athletes. [PDF]

Sports Med Open
Background Imbalances between muscle strength and tendon stiffness influence the mechanical demand on the tendon (i.e., tendon strain) and may increase tendon injury risk.
Domroes T, Weidlich K, Bohm S, Mersmann F, Arampatzis A.   +4 more
europepmc   +2 more sources

3D Muscle Deformation Mapping at Submaximal Isometric Contractions: Applications to Aging Muscle

Frontiers in Physiology, 2020
3D strain or strain rate tensor mapping comprehensively captures regional muscle deformation. While compressive strain along the muscle fiber is a potential measure of the force generated, radial strains in the fiber cross-section may provide information
Vadim Malis, Vadim Malis, Usha Sinha, Shantanu Sinha   +3 more
doaj   +1 more source

3D Quasi-Static Ultrasound Elastography With Plane Wave In Vivo [PDF]

IEEE Transactions on Medical Imaging, 2017, 36 (2), pp.357-365, 2023
In biological tissue, an increase in elasticity is often a marker of abnormalities. Techniques such as quasi-static ultrasound elastography have been developed to assess the strain distribution in soft tissues in two dimensions using a quasi-static compression.
arxiv   +1 more source

Calf muscle strain injuries in sport: a systematic review of risk factors for injury

British Journal of Sports Medicine, 2017
Objective To systematically review the literature to identify risk factors for calf strain injury, and to direct future research into calf muscle injuries.
E. Verhagen, C. F. Finch, J. Dvorak, L. Engebretsen, S. Fawkner, B. Green, J. J. Stefanik, N. Wyndow, Z. Machotka   +8 more
semanticscholar   +2 more sources

Activation of a muscle as a mapping of stress-strain curves [PDF]

Extreme Mechanics Letters 28 (2019): 37-42, 2019
The mathematical modeling of the contraction of a muscle is a crucial problem in biomechanics. Several different models of muscle activation exist in literature. A possible approach to contractility is the so-called active strain: it is based on a multiplicative decomposition of the deformation gradient into an active contribution, accounting for the ...
arxiv   +1 more source

A biomechanical paradox in fish: swimming and suction feeding produce orthogonal strain gradients in the axial musculature

Scientific Reports, 2021
The axial musculature of fishes has historically been characterized as the powerhouse for explosive swimming behaviors. However, recent studies show that some fish also use their ‘swimming’ muscles to generate over 90% of the power for suction feeding ...
Yordano E. Jimenez, Richard L. Marsh, Elizabeth L. Brainerd   +2 more
doaj   +1 more source

Regional heterogeneity in muscle fiber strain: The role of fiber architecture

Frontiers in Physiology, 2014
The force, mechanical work and power produced by muscle fibers are profoundly affected by the length changes they undergo during a contraction. These length changes are in turn affected by the spatial orientation of muscle fibers within a muscle (fiber ...
E. eAzizi, Amber R Deslauriers
doaj   +1 more source