Results 71 to 80 of about 1,945,583 (386)

The functional coupling of the deep abdominal and paraspinal muscles: the effects of simulated paraspinal muscle contraction on force transfer to the middle and posterior layer of the thoracolumbar fascia

Journal of Anatomy, 2014
The thoracolumbar fascia (TLF) consists of aponeurotic and fascial layers that interweave the paraspinal and abdominal muscles into a complex matrix stabilizing the lumbosacral spine.
A. Vleeming, M. Schuenke, L. Danneels, Frank H. Willard   +3 more
semanticscholar   +1 more source

Piezo1 channels enhance anabolic signaling activation induced by electrical stimulation of cultured myotubes

FEBS Open Bio, EarlyView.
By using an electrical pulse stimulation (EPS)‐based in vitro exercise model and chemical activation/inhibition of mechanosensitive Piezo1 channels, we explored changes in protein synthetic response in cultured C2C12 myotubes. Our data showed that application of Piezo1 activator (Yoda1) during EPS significantly enhances the rate of protein synthesis in
Natalia A. Vilchinskaya, Ksenia V. Sergeeva, Boris S. Shenkman, Timur M. Mirzoev   +3 more
wiley   +1 more source

Estimation of quadriceps femoris muscle dysfunction in the early period after surgery of the knee joint using shear-wave elastography

BMJ Open Sport & Exercise Medicine, 2018
Objectives Orthopaedic surgery of the knee joint results in functional deterioration of the quadriceps femoris muscle. However, little is known about quadriceps femoris muscle dysfunction in the early postsurgical period.
Makoto Kawai, Keigo Taniguchi, Tomoyuki Suzuki, Masaki Katayose   +3 more
doaj   +1 more source

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

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

FEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik, Deniz Bakkalci, Alexander J. MacRobert, Umber Cheema   +3 more
wiley   +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

The Association of Cortactin with Profilin-1 Is Critical for Smooth Muscle Contraction*

Journal of Biological Chemistry, 2014
Background: Profilin-1 (Pfn-1) regulates actin dynamics and contraction in smooth muscle. Results: Contractile activation increases the association of cortactin with Pfn-1 via c-Abl, which controls actin dynamics and contraction. Conclusion: The coupling
Ruping Wang, Rachel A Cleary, Tao Wang, Jia Li, D. Tang   +4 more
semanticscholar   +1 more source

Geometric and dosimetric evaluation of a commercial AI auto‐contouring tool on multiple anatomical sites in CT scans

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Current radiotherapy practices rely on manual contouring of CT scans, which is time‐consuming, prone to variability, and requires highly trained experts. There is a need for more efficient and consistent contouring methods. This study evaluated the performance of the Varian Ethos AI auto‐contouring tool to assess its potential integration into
Robert N. Finnegan, Alexandra Quinn, Patrick Horsley, Joseph Chan, Maegan Stewart, Regina Bromley, Jeremy Booth   +6 more
wiley   +1 more source

Experimental research models for skeletal muscle contraction

Journal of Physical Fitness and Sports Medicine, 2016
Skeletal muscle has an important role besides its obvious function in physical movement and locomotion; namely, it maintains whole-body metabolism. Maintaining muscle mass and quality with regular exercise is closely related to quality of life and a ...
Yasuko Manabe, Nobuharu L. Fujii
doaj   +1 more source

In plane quantification of in vivo muscle elastic anisotropy factor by steered ultrasound pushing beams [PDF]

arXiv, 2023
Skeletal muscles are organized into distinct layers and exhibit anisotropic characteristics across various scales. Assessing the arrangement of skeletal muscles may provide valuable biomarkers for diagnosing muscle related pathologies and evaluating the efficacy of clinical interventions.
arxiv