Results 51 to 60 of about 20,755 (245)

In vivo assessment of muscle fascicle length by extended field-of-view ultrasonography

Journal of Applied Physiology, 2010
The present study examined the reliability and validity of in vivo vastus lateralis (VL) fascicle length ( Lf) assessment by extended field-of-view ultrasonography (EFOV US). Intraexperimenter and intersession reliability of EFOV US were tested. Further, Lf measured from EFOV US images were compared to Lf measured from static US images (6-cm FOV ...
Noorkoiv M, Stavnsbo A, Aagaard P, Blazevich AJ   +3 more
openaire   +4 more sources

The mechanisms of adaptation for muscle fascicle length changes with exercise: Implications for spastic muscle

Medical Hypotheses, 2020
We are proposing optimal training conditions that can lead to an increase in the number of serial sarcomeres (SSN) and muscle fascicle length (FL) in spastic muscles. Therapeutic interventions for increasing FL in clinical populations with neurological origin, in whom relative shortness of muscle fascicles contributed to the presentation of symptoms ...
Davis, JF, Khir, AW, Barber, L, Reeves, ND, Khan, T, DeLuca, M, Mohagheghi, AA   +6 more
openaire   +5 more sources

Changes in the length and three‐dimensional orientation of muscle fascicles and aponeuroses with passive length changes in human gastrocnemius muscles [PDF]

The Journal of Physiology, 2014
Key points The human gastrocnemius muscle is slack at its shortest lengths in vivo. We hypothesised that when the muscle is lengthened slack is taken up progressively, first in some muscle fascicles, then in others. A new, quasi‐three‐dimensional ultrasound imaging method was used to test this hypothesis directly.
Herbert, RD, Héroux, ME, Diong, J, Bilston, LE, Gandevia, SC, Lichtwark, GA   +5 more
openaire   +5 more sources

Fascicle Length of Gastrocnemius Muscles in Monozygous Twins.

Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science, 2002
A large inter-individual variation is seen in muscle fascicle length of the athletes but the reasons for this phenomenon are unclear. The purpose of this study was to determine whether genetic factors contribute to the variances in muscle architectural characteristics.
openaire   +3 more sources

Resistance Training Combined With Stretching Increases Tendon Stiffness and Is More Effective Than Stretching Alone in Children With Cerebral Palsy: A Randomized Controlled Trial

Frontiers in Pediatrics, 2019
Aim: Stretching is often used to increase/maintain muscle length and improve joint range of motion (ROM) in children with cerebral palsy (CP). However, outcomes at the muscle (remodeling) and resulting function appear to be highly variable and often ...
Barbara M. Kalkman, Gill Holmes, Lynn Bar-On, Lynn Bar-On, Constantinos N. Maganaris, Gabor J. Barton, Alfie Bass, David M. Wright, Roger Walton, Thomas D. O'Brien   +9 more
doaj   +1 more source

Effect of isokinetic eccentric training on the human shoulder strength, flexibility, and muscle architecture in physically active men: A preliminary study.

PLoS ONE, 2023
Strengthening the rotator cuff muscles is important for injury prevention and rehabilitation. Since muscle fascicle length improves motor performance and is suggested to reduce the risk of injury for the hamstring, it may be an important variable to ...
Sebastian Vetter, Pierre Hepp, Axel Schleichardt, Stefan Schleifenbaum, Maren Witt, Christian Roth, Hans-Peter Köhler   +6 more
doaj   +1 more source

Cyclic loading of tendon fascicles using a novel fatigue loading system increases interleukin-6 expression by tenocytes [PDF]

, 2013
Repetitive strain or ‘overuse’ is thought to be a major factor contributing to the development of tendinopathy. The aims of our study were to develop a novel cyclic loading system, and use it to investigate the effect of defined loading conditions on the
Jones, Gavin, Legerlotz, K, Riley, GP, Screen, HRC   +3 more
core   +1 more source

New records of suctorians (Ciliophora: Suctoria) as epibionts of aquatic true bugs (Hemiptera: Prosorrhyncha: Nepomorpha) from two regions: Mexico and Eastern Europe [PDF]

, 2011
Here, we provide new records of suctorians (Ciliophora: Suctoria), epibionts of aquatic true bugs (Hemiptera: Prosorrhyncha: Nepomorpha) collected in Ukraine, Belarus and Mexico.
Dovgal, I. V., Marіño-Pérez, Ricardo, Mayén-Estrada, Rosaura   +2 more
core   +1 more source

UltraTimTrack: a Kalman-filter-based algorithm to track muscle fascicles in ultrasound image sequences [PDF]

PeerJ Computer Science
Background Brightness-mode (B-mode) ultrasound is a valuable tool to non-invasively image skeletal muscle architectural changes during movement, but automatically tracking muscle fascicles remains a major challenge.
Tim J. van der Zee, Paolo Tecchio, Daniel Hahn, Brent J. Raiteri   +3 more
doaj   +2 more sources

Residual force enhancement is affected more by quadriceps muscle length than stretch amplitude

eLife, 2022
Little is known about how muscle length affects residual force enhancement (rFE) in humans. We therefore investigated rFE at short, long, and very long muscle lengths within the human quadriceps and patellar tendon (PT) using conventional dynamometry ...
Patrick Bakenecker, Tobias Weingarten, Daniel Hahn, Brent Raiteri   +3 more
doaj   +1 more source