Results 171 to 180 of about 1,978,723 (197)
Some of the next articles are maybe not open access.
Measurement of Skeletal Muscle Fascicle Length
2021Muscle fascicle length (FL) is also an important quantitative indicator of skeletal muscle dynamics, and its changes directly reflect muscle activity. The calculation methods for muscle fiber length include the use of extended field-of-view ultrasonography (EFOV US) technology and optical flow tracking methods, etc.
Yongjin Zhou, Yong-Ping Zheng
openaire +1 more source
Gastrocnemius Fascicle Length Changes with Two-Joint Passive Movements
Journal of Applied Biomechanics, 2008Predicting muscle fascicle length changes during passive movements may lead to a better understanding of muscle function. The purpose of this study was to experimentally compare fascicle length changes in the gastrocnemius during two-joint passive movements with a previously derived kinematic model based on anatomical measures from a cadaver. The ratio
Timothy J, Brindle +3 more
openaire +2 more sources
Test-retest reliability of gastrocnemius medialis fascicle force-length relationship
Journal of BiomechanicsFascicle force-length relationship is one major basic mechanical property of skeletal muscle, subsequently influencing movement mechanics. While force-length properties are increasingly described through ultrafast ultrasound imaging, their test-retest reliability remains unknown.
Enzo Hollville +2 more
exaly +3 more sources
APONEUROSIS LENGTH AND FASCICLE INSERTION ANGLES OF THE BICEPS BRACHII
Journal of Mechanics in Medicine and Biology, 2002Magnetic resonance images and ultrasound images were used to examine the architecture of the distal biceps brachii muscle in 12 unimpaired subjects. The distal biceps brachii tendon continued as an internal aponeurosis that spanned 34± 4% of the length of the biceps brachii long head muscle on average. The distal muscle fascicles inserted at angles to
DEANNA S. ASAKAWA +3 more
openaire +1 more source
Mechanics of feline soleus: I. Effect of fascicle length and velocity on force output
Journal of Muscle Research and Cell Motility, 1996The aim of the present study was to quantify how fascicle length and velocity modify force production in cat soleus. A computerized muscle puller controlled the length and velocity of the whole-muscle. We recorded the force output at the tendon and the length of muscle fascicles using sonomicrometry during whole-muscle isometric and isokinetic ...
Gerald Loeb +2 more
exaly +3 more sources
Estimation of cat medial gastrocnemius fascicle lengths during dynamic contractions
Journal of Biomechanics, 2002In typical muscle models, it is often assumed that the contractile element (fascicle) length depends exclusively on the instantaneous muscle-tendon length and the instantaneous muscle force. In order to test whether the instantaneous fascicle length during dynamic contractions can be predicted from muscle-tendon length and force, fascicle lengths ...
Motoshi, Kaya +3 more
openaire +2 more sources
Fascicle length of leg muscles is greater in sprinters than distance runners
Medicine & Science in Sports & Exercise, 2000The purpose of this study was to compare architectural characteristics of leg muscles of sprinters and distance runners.Skeletal muscle architectural characteristics were studied in 23 elite male 100-m sprinters (SPR, 10.0-10.9 s for 100 m), 24 elite male distance runners (DR, 13.5-14.5 min for 5000 m), and 24 untrained male controls.
T, Abe, K, Kumagai, W F, Brechue
openaire +2 more sources
Journal of Electromyography and Kinesiology, 2014
The purpose of this study was to determine the validity of fascicle length estimation in the vastus lateralis (VL) and vastus intermedius (VI) using ultrasonography. The fascicle lengths of the VL and VI muscles were measured directly (dFL) using calipers, and were estimated (estmFL) using ultrasonography, in 10 legs from five Thiel's embalmed cadavers.
Akira Saito +2 more
exaly +3 more sources
The purpose of this study was to determine the validity of fascicle length estimation in the vastus lateralis (VL) and vastus intermedius (VI) using ultrasonography. The fascicle lengths of the VL and VI muscles were measured directly (dFL) using calipers, and were estimated (estmFL) using ultrasonography, in 10 legs from five Thiel's embalmed cadavers.
Akira Saito +2 more
exaly +3 more sources
Biceps femoris fascicle length during passive stretching
Journal of Electromyography and Kinesiology, 2018The purpose of this study was to quantify the relative changes in fascicle (FL) and muscle-tendon unit (LMTU) length of the long head of the biceps femoris (BFlh) at different combinations of hip and knee joint positions. Fourteen participants performed passive knee extension trials from 0°, 45° and 90° of hip flexion.
openaire +2 more sources
Muscle enlargement in sumo wrestlers includes increased muscle fascicle length
European Journal of Applied Physiology, 2000Skeletal muscle architecture was measured in 28 college sumo wrestlers (Sumo) and 30 control subjects. Pennation angle (PAN) and muscle thickness (MTH) of the triceps long head (TL), vastus lateralis (VL) and gastrocnemius medialis (MG) and lateralis (LG) muscles were measured by B-mode ultrasonography, and fascicle length (FAL) was estimated.
C F, Kearns, T, Abe, W F, Brechue
openaire +2 more sources