Results 71 to 80 of about 874,825 (155)

Ultrasonographic (longitudinal) image for measuring muscle thickness, pennation angle and fascicle length in vastus lateralis.

open access: yes, 2019
Ultrasonographic (longitudinal) image for measuring muscle thickness, pennation angle and fascicle length in vastus lateralis.
Paola Zamparo (462551)   +1 more
core   +1 more source

Pennation Angle and Fascicle Length of Human Skeletal Muscles to Predict the Strength of an Individual Muscle Using Real-Time Ultrasonography: A Review of Literature [PDF]

open access: yes, 2016
Introduction: Muscle fascicle length and pennation angle are two muscle structural parameters which can be non-invasively measured using methods like ultrasonography. The aim of the present literature review was to introduce fascicle length and pennation
Lahouti, Behzad   +3 more
core   +1 more source

Comparative Morphology and Mechanics of Aquatic and Terrestrial Feeding Salamanders

open access: yesJournal of Morphology, Volume 287, Issue 9, September 2026.
Jaw muscle size, bite force, and skull strength are driven by multiple factors, not just the difference between the two habitats. Necturus produces higher bite forces than Salamandra, but the stress distribution is less even in Necturus, suggesting Salamandra's skull shape is better adapated to resist feeding loads.
Julia R. S. May   +2 more
wiley   +1 more source

Reliability of Gastrocnemius Pennation Angle Using Ultrasound with 15 Degree Adduction and Abduction in Standing Position [PDF]

open access: yes, 2016
A pennate muscle has fascicles that attach obliquely to its tendon. In parallel, more fascicles can be aligned allowing for greater production of force.
Tyler, Diana J
core  

MR Imaging‐Based Biomarkers for Strength Prediction: A Statistical Shape and Architecture Modeling of Quadriceps Muscles

open access: yesJournal of Magnetic Resonance Imaging, Volume 64, Issue 3, Page 685-698, September 2026.
ABSTRACT Background Muscle mass decline, associated with strength decline, is a hallmark of aging. Yet, strength decline greatly exceeds mass decline. This indicates that aspects of muscle quality and architecture—not reflected by mass—also influence force generating capacity.
Salim Bin Ghouth   +2 more
wiley   +1 more source

Context-Dependent Differences in Muscle Architecture Following Fatigue in Ultramarathon Athletes: A Comparison Between Laboratory and Real Race Settings

open access: yesDiagnostics
Background/Objectives: Understanding how different fatigue contexts influence muscle architecture is essential for optimizing training and recovery strategies in endurance athletes.
Juan Vicente-Mampel   +5 more
doaj   +1 more source

Isometric training at longer muscle–tendon complex lengths: A potential countermeasure to impaired neuro‐muscle–tendon function during space travel

open access: yesExperimental Physiology, Volume 111, Issue 9, Page 4041-4053, 1 September 2026.
Abstract Manned space exploration to distant destinations, including Mars, continues to be an aspiration of humankind. Space travel does, however, present many challenges to the body, amongst which adaptation to microgravity is perhaps the largest. For instance, both short and long manned spaceflight missions have shown substantial deleterious effects ...
Gerard McMahon   +2 more
wiley   +1 more source

The correlation of muscle thickness and pennation angle assessed by ultrasound with sarcopenia in elderly Chinese community dwellers

open access: yes, 2019
Siping Zhu,1,* Wei Lin,1,* Shu Chen,1,* Hanmei Qi,1 Siting Wang,2 Aisen Zhang,1 Jinmei Cai,1 Bing Lai,1 Yunlu Sheng,1 Guoxian Ding11Division of Geriatric Endocrinology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People&
Ding G   +9 more
core  

Quantification of muscle thickness and pennation angle on the UBM image.

open access: yes, 2014
UBM image showing muscle details and the traces used to quantify the muscle thickness (MT) and pennation angle (PA) of the lateral gastrocnemius muscle.
Natália Santos da Fonseca Martins (520614)   +3 more
core   +1 more source

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