Results 71 to 80 of about 20,612 (257)

Unexpected Fascicle Length Changes In Denervated Feline Soleus Muscle During Stance Phase Of Walking. [PDF]

Sci Rep, 2015
AbstractAfter surgical repair of traumatically severed peripheral nerves, associated muscles are paralyzed for weeks. Little is known about fascicle length changes in paralyzed muscles during locomotion. The aim of this study was to investigate to what extent, if any, muscle fascicles of denervated feline soleus (SO) change length during stance of ...
Mehta R, Maas H, Gregor RJ, Prilutsky BI.   +3 more
europepmc   +5 more sources

Interaponeurosis shear strain modulates behavior of myotendinous junction of the human triceps surae. [PDF]

, 2013
Muscle fascicles insert into a sheet-like aponeurosis. Adjacent aponeuroses are structurally in contact with each other, and ultimately merge into a common tendon. Consequently, fascicle shortening in planes of tissue layers in adjacent compartments must
Edgerton, V Reggie, Kinugasa, Ryuta, Komatsu, Toshihiko, Oda, Toshiaki, Sinha, Shantanu   +4 more
core   +2 more sources

Microstructural analysis of skeletal muscle force generation during aging. [PDF]

, 2020
Human aging results in a progressive decline in the active force generation capability of skeletal muscle. While many factors related to the changes of morphological and structural properties in muscle fibers and the extracellular matrix (ECM) have been ...
Basava, Ramya R, Chen, Jiun-Shyan, He, Qizhi, He, Xiaolong, Hodgson, John, Sinha, Shantanu, Sinha, Usha, Zhang, Yantao   +7 more
core   +1 more source

Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis

Applied Physiology, Nutrition, and Metabolism, 2019
Muscle fascicle length and muscle fibre conduction velocity (MFCV) are thought to be important parameters for power performance. It might be expected that faster muscle fibre conduction velocities would compensate for longer fascicle lengths to increase the speed of action potential propagation along the elongated fibres.
Methenitis, S., Stasinaki, A.-N., Zaras, N., Spengos, K., Karandreas, N., Terzis, G.   +5 more
openaire   +3 more sources

Increased Blood Flow and Tendon Swelling Precedes Vascular Expansion and Tissue Matrix Changes In Early Human Tendinopathy: A Potential Window for Superior Treatment Response

Advanced Science, EarlyView.
Human participants with early‐ or chronic‐stage tendinopathy and healthy controls are investigated using ultrasound Doppler, 3T and 7T MRI, and tendon biopsies. Tendon swelling and hyperperfusion are evident early, while vascular growth and extracellular matrix changes are most pronounced in chronic tendinopathy. Early intervention may provide superior
Max F. R. Merkel, Nikolaj M. Malmgaard‐Clausen, Marius Lendal, Hartwig R. Siebner, René B. Svensson, Stephanie G. Dakin, Marcus Krüger, Luisa Schmidt, Jakob Agergaard, Ching‐Yan Chloé Yeung, S. Peter Magnusson, Michael Kjaer   +11 more
wiley   +1 more source

Relationships between lower-body muscle structure and, lower-body strength, explosiveness and eccentric leg stiffness in adolescent athletes [PDF]

, 2015
The purpose of the present study was to determine whether any relationships were present between lower-body muscle structure and, lower-body strength, variables measured during a counter-movement jump (CMJ) and squat jump (SJ), and eccentric leg ...
Farley, Oliver R, Lundgren, Lina, Nimphius, Sophia, Secombe, Josh L., Sheppard, Jeremy M, Tran, Tai T.   +5 more
core   +1 more source

Simple Muscle Architecture Analysis (SMA): an ImageJ macro tool to automate measurements in B-mode ultrasound scans [PDF]

, 2019
In vivo measurements of muscle architecture (i.e. the spatial arrangement of muscle fascicles) are routinely included in research and clinical settings to monitor muscle structure, function and plasticity.
Cronin, Neil J., Seynnes, Olivier R.
core   +2 more sources

Convergent and Divergent Connectivity Patterns of the Arcuate Fasciculus in Macaques and Humans

Advanced Science, EarlyView.
This study employs viral‐based single‐neuron tracing and dMRI‐based whole‐brain tractography to investigate arcuate fasciculus (AF) trajectories in macaque monkeys, and compares with the human AF connectome using spectral embedding. Results demonstrate conserved AF topography spanning temporoparietal‐auditory‐frontal pathways across primates, with ...
Jiahao Huang, Ruifeng Li, Wenwen Yu, Anan Li, Xiangning Li, Mingchao Yan, Lei Xie, Qingrun Zeng, Xueyan Jia, Shuxin Wang, Ronghui Ju, Feng Chen, Qingming Luo, Hui Gong, Andrew Zalesky, Xiaoquan Yang, Yuanjing Feng, Zheng Wang   +17 more
wiley   +1 more source

Effect of Transducer Orientation on Errors in Ultrasound Image-Based Measurements of Human Medial Gastrocnemius Muscle Fascicle Length and Pennation. [PDF]

PLoS ONE, 2016
Ultrasound imaging is often used to measure muscle fascicle lengths and pennation angles in human muscles in vivo. Theoretically the most accurate measurements are made when the transducer is oriented so that the image plane aligns with muscle fascicles ...
Bart Bolsterlee, Simon C Gandevia, Robert D Herbert   +2 more
doaj   +1 more source

Soft, Flexible, and Stretchable Platforms for Tissue‐Interfaced Bioelectronics

Advanced Science, EarlyView.
Bio‐integrated electronics provide mechanically compliant and stable interfaces with soft biological tissues. Representative applications include neural interfaces, wet‐organadhesive electronics, and skin‐interfaced devices. E represents Young´s modulus and ε represents strain.
Kento Yamagishi, Sunghoon Lee, Tomoyuki Yokota, Takao Someya   +3 more
wiley   +1 more source