Results 11 to 20 of about 874,825 (155)

The influence of muscle pennation angle and cross-sectional area on contact forces in the ankle joint [PDF]

The Journal of Strain Analysis for Engineering Design, 2016
Data about a muscle’s fibre pennation angle and physiological cross-sectional area are used in musculoskeletal modelling to estimate muscle forces, which are used to calculate joint contact forces. For the leg, muscle architecture data are derived from studies that measured pennation angle at the muscle surface, but not deep within it.
Sopher, R, Amis, A, Davies, D, Jeffers, J   +3 more
openaire   +5 more sources

Impact of contraction intensity and ankle joint angle on calf muscle fascicle length and pennation angle during isometric and dynamic contractions

Scientific Reports
During muscle contraction, not only are the fascicles shortening but also the pennation angle changes, which leads to a faster contraction of the muscle than of its fascicles. This phenomenon is called muscle gearing, and it has a direct influence on the
Corinna Coenning, Volker Rieg, Tobias Siebert, Veit Wank   +3 more
doaj   +3 more sources

Effect of combined plyometric and eccentric strength training on fascicle length, pennation angle and sprint performance in male sprinters

Physical Education of Students
Background and Study Aim. Neuromuscular, biomechanical, and anatomical features interact in a complicated way to determine sprint performance. Characteristics of muscle architecture, such as fascicle length and pennation angle, are important structural ...
Ajay Kumar, Shashvat Priyam Khare, Sapna Mandoli, Rishiraj Vishwakarma, Akshat Mandiwal, Shivam Gandhi   +5 more
doaj   +2 more sources

Anisotropic Smoothing Improves DT-MRI-Based Muscle Fiber Tractography. [PDF]

PLoS ONE, 2015
To assess the effect of anisotropic smoothing on fiber tracking measures, including pennation angle, fiber tract length, and fiber tract number in the medial gastrocnemius (MG) muscle in healthy subjects using diffusion-weighted magnetic resonance ...
Amanda K W Buck, Zhaohua Ding, Christopher P Elder, Theodore F Towse, Bruce M Damon   +4 more
doaj   +1 more source

The Energy of Muscle Contraction. II. Transverse Compression and Work

Frontiers in Physiology, 2020
In this study we examined how the strain energies within a muscle are related to changes in longitudinal force when the muscle is exposed to an external transverse load.
David S. Ryan, Sebastián Domínguez, Stephanie A. Ross, Nilima Nigam, James M. Wakeling, James M. Wakeling   +5 more
doaj   +1 more source

Pennation angle.

, 2022
Pennation angle.
Arthur D. Kuo (9981656), Tim J. van der Zee (12289822)   +1 more
core   +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

Muscle Fiber Characteristics on Chop Surface of Pork Loin (M. longissimus thoracis et lumborum) Associated with Muscle Fiber Pennation Angle and Their Relationships with Pork Loin Quality

Food Science of Animal Resources, 2020
The influence of muscle architecture on muscle fiber characteristics and meat quality has not been fully elucidated. In the present study, muscle fiber characteristics on the chop surface of pork loin (M. longissimus thoracis et lumborum, LTL), pennation
Sumin Song, Huilin Cheng, Eun-Young Jung, Seon-Tea Joo, Gap-Don Kim   +4 more
doaj   +1 more source

Effect of the Knee and Hip Angles on Knee Extensor Torque: Neural, Architectural, and Mechanical Considerations

Frontiers in Physiology, 2022
This study examined the influence of knee extensors’ hip and knee angle on force production capacity and their neuromuscular and architectural consequences.
Yoann M. Garnier, Yoann M. Garnier, Romuald Lepers, Patrizio Canepa, Patrizio Canepa, Alain Martin, Christos Paizis, Christos Paizis   +7 more
doaj   +1 more source

Hamstring muscle architecture and myotonometer measurements in elite professional football players with a prior strained hamstring

Biology of Sport, 2022
The purpose of this study was to compare the fascicle length, angle pennation and mechanical properties of the biceps femoris long head (BFlh) in dominant and non-dominant limbs in previously injured and uninjured professional football players.
F. Javier Núñez, Juan Carlos Martínez, Jan-Arie Overberg, Nacho Torreno, Luis Suarez-Arrones   +4 more
doaj   +1 more source