Results 1 to 10 of about 1,978,723 (197)

Information from dynamic length changes improves reliability of static ultrasound fascicle length measurements [PDF]

PeerJ, 2017
Purpose Various strategies for improving reliability of fascicle identification on ultrasound images are used in practice, yet these strategies are untested for effectiveness.
Jeroen Aeles, Glen A. Lichtwark, Sietske Lenchant, Liesbeth Vanlommel, Tijs Delabastita, Benedicte Vanwanseele   +5 more
doaj   +13 more sources

Curvature of gastrocnemius muscle fascicles as function of muscle–tendon complex length and contraction in humans [PDF]

Physiological Reports, 2023
It has been shown that muscle fascicle curvature increases with increasing contraction level and decreasing muscle–tendon complex length. The analyses were done with limited examination windows concerning contraction level, muscle–tendon complex length ...
Jule Heieis, Jonas Böcker, Olfa D'Angelo, Uwe Mittag, Kirsten Albracht, Eckhard Schönau, Andreas Meyer, Thomas Voigtmann, Jörn Rittweger   +8 more
doaj   +5 more sources

Comparison between Short, Medium, and Long Fields of View in Estimating Bicep Femoris Fascicle Length

Muscles
Measuring the bicep femoris long head fascicle length via the use of diagnostic ultrasound has become common practice within elite sport, using single images of between 4 and 6 cm.
Nicholas J. Ripley, Paul Comfort, John McMahon   +2 more
doaj   +3 more sources

High Velocity Passive Stretching Mimics Eccentric Exercise in Cerebral Palsy and May Be Used to Increase Spastic Muscle Fascicle Length

Bioengineering
Muscle fascicles are shorter and stiffer than normal in spastic Cerebral Palsy (CP). Increasing fascicle length (FL) has been attempted in CP, the outcomes of which have been unsatisfactory.
Jessica F. Davis, Tahir Khan, Matt Thornton, Neil D. Reeves, Mara DeLuca, Amir A. Mohagheghi   +5 more
doaj   +3 more sources

The force-length relation of the young adult human tibialis anterior [PDF]

PeerJ, 2023
Background Knowledge of the muscle’s lengths at which maximum active isometric force is attained is important for predicting forces during movement. However, there is limited information about the in vivo force-length properties of a human muscle that ...
Brent J. Raiteri, Leon Lauret, Daniel Hahn   +2 more
doaj   +2 more sources

Biceps femoris long head sarcomere and fascicle length adaptations after 3 weeks of eccentric exercise training

Journal of Sport and Health Science, 2022
Background: Eccentric exercise increases muscle fascicle lengths; however, the mechanisms behind this adaptation are still unknown. This study aimed to determine whether biceps femoris long head (BFlh) fascicle length increases in response to 3 weeks of ...
Patricio A. Pincheira, Melissa A. Boswell, Martino V. Franchi, Scott L. Delp, Glen A. Lichtwark   +4 more
doaj   +1 more source

Effects of Vastus Lateralis Muscle Fascicle Length on Isokinetic Muscular Strength and Physical Fitness in Collegiate Athletes [PDF]

The Asian Journal of Kinesiology, 2020
OBJECTIVES The purpose of this study was to examine the effects of vastus lateralis muscle fascicle length on isokinetic muscle strength and physical fitness in collegiate athletes.
Kwang-Jin Lee, Ho-Seong Lee
doaj   +1 more source

Effects of Vastus Lateralis Muscle Fascicle Length on Isokinetic Muscle Strength and Dynamic Balance in Youth Soccer Players [PDF]

운동과학, 2019
PURPOSE The purpose of this study was to determine the effect of vastus lateralis muscle fascicle length on isokinetic muscle strength and dynamic balance in youth soccer players.
Jeong-Doo Jin, Ho-Seong Lee
doaj   +1 more source

Rate of force development relationships to muscle architecture and contractile behavior in the human vastus lateralis

Scientific Reports, 2022
In this study, we tested the hypotheses that (i) rate of force development (RFD) is correlated to muscle architecture and dynamics and that (ii) force–length–velocity properties limit knee extensor RFD.
Amelie Werkhausen, Øyvind Gløersen, Antoine Nordez, Gøran Paulsen, Jens Bojsen-Møller, Olivier R. Seynnes   +5 more
doaj   +1 more source

Linking muscle architecture and function in vivo: conceptual or methodological limitations? [PDF]

PeerJ, 2023
Background Despite the clear theoretical link between sarcomere arrangement and force production, the relationship between muscle architecture and function remain ambiguous in vivo.
Amelie Werkhausen, Øyvind Gløersen, Antoine Nordez, Gøran Paulsen, Jens Bojsen-Møller, Olivier R. Seynnes   +5 more
doaj   +2 more sources