Results 71 to 80 of about 6,708 (217)

Human gastrocnemius medialis Pennation Angle as a Function of Age: From Newborn to the Elderly.

Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science, 2001
The aim of the present study was to quantify changes in human skeletal muscle pennation angle (F theta) values during growth and adult life. The human gastrocnemius medialis muscle of 162 subjects (96 males and 66 females) in the age range 0-70 years was scanned with ultrasonography. The subjects were laying prone, at rest, with the ankle maintained at
Binzoni, Tiziano, Bianchi, Stefano, Hanquinet, Sylviane, Kaelin, André, Sayegh, Yasmine Alexandra, Anooshiravani Dumont, Mehrak, Jequier, Sigrid   +6 more
openaire   +4 more sources

Gender variability in electromyographic activity, in vivo behaviour of the human gastrocnemius and mechanical capacity during the take-off phase of a countermovement jump [PDF]

, 2017
PURPOSE: The purpose of this study was to analyse gender differences in neuromuscular behaviour of the gastrocnemius and vastus lateralis during the take-off phase of a countermovement jump (CMJ), using direct measures (ground reaction forces, muscle ...
Esteban, P., Jiménez, J.F., Mendizábal, S., Peña Amaro, J., Ramos Campo, Domingo Jesús, Rubio Arias, Jacobo Ángel   +5 more
core   +2 more sources

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

Experimental Physiology, EarlyView.
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, Andy Sanderson, Hans Degens   +2 more
wiley   +1 more source

Change in Gastrocnemius Pennation Angle According to Ankle Dorsiflexion among University Students

Journal of the Korea Academia-Industrial cooperation Society, 2015
본 연구의 목적은 발목관절의 발등굽힘 각도를 $0^{\circ}$ , $10^{\circ}$ , $20^{\circ}$ 로 위치하게 한 후 각 각도에서 장딴지근의 깃각 변화에 미치는 영향을 비교하여 효율적인 장딴지근 신장 각도를 제시하는 것이다. 건강한 성인 남녀 25명을 그 대상으로 하여 발목관절 발등굽힘 각도 $0^{\circ}$ , $10^{\circ}$ , $20^{\circ}$ 에서 초음파 기기를 이용하여 내측 장딴지근의 깃각을 측정하였다. 각도별 장딴지근의 깃각 변화를 알아보기 위해 반복측정분산분석을 성별에 따른 각도별 차이를 알아보기 위해 독립 t 검정을 실시하였다.
Ji-Seon Kim, Byoung-Do Seo, Hyung-Soo Shin, Hee-Joon Shin, Joung-Youl Ju   +4 more
openaire   +2 more sources

Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study

Sports, 2020
Gastrocnemius medialis (GM) architecture and ankle angle were compared between flexibility trained (n = 10) and not trained (n = 6) female athletes, aged 8−10 years.
Ioli Panidi, Gregory C. Bogdanis, Vasiliki Gaspari, Polyxeni Spiliopoulou, Anastasia Donti, Gerasimos Terzis, Olyvia Donti   +6 more
doaj   +1 more source

Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb [PDF]

, 2014
In broiler chickens, genetic success for desired production traits is often shadowed by welfare concerns related to musculoskeletal health. Whilst these concerns are clear, a viable solution is still elusive.
Codd, J, Hutchinson, J R, Manchester, Paxton, H P, Rankin, J W, Tickle, P   +5 more
core   +3 more sources

Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae) [PDF]

, 2014
Emus (Dromaius novaehollandiae) are exclusively terrestrial, bipedal and cursorial ratites with some similar biomechanical characteristics to humans. Their growth rates are impressive, as their body mass increases eighty-fold from hatching to adulthood ...
Abourachid, Alexander, Alexander, Alexander, Allen, Allen, Bertram, Biewener, Biewener, Brown, Carrier, Carrier, Carrier, Close, Close, Cubo, Daley, Davies, Dial, Dial, Doube, Fuss, Gangl, Gatesy, Gatesy, Gaunt, Gillooly, Goetz, Goonewardene, Haughton, Hemmingsen, Hokkanen, Hutchinson, Hutchinson, Hutchinson, Ker, Ker, Kleiber, LaBarbera, Main, Main, Maloiy, McMahon, Mendez, Miller, Minnaar, Muir, Patak, Patak, Paxton, Paxton, Picasso, Picasso, Picasso, Powell, R Development Core Team, Regnault, Sacks, Schmidt-Nielsen, Shadwick, Smith, Smith, Smith, Smith, Taylor, Thorpe, Vanden Berge, Yoshikawa, Young, Zinoviev   +69 more
core   +6 more sources

The Clinical Impact of Sarcopenia and Delirium in Hospitalized Elderly Patients: An Analysis Using Muscle Ultrasound

Journal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 1, February 2026.
ABSTRACT Background Sarcopenia and delirium are two highly prevalent clinical syndromes among hospitalized elderly patients, both independently associated with adverse outcomes such as increased risk of falls, disability and mortality. Although a correlation between sarcopenia and delirium has been previously reported, past studies have often relied on
Thomas Fraccalini, Laura Santos Ribeiro, Andrea Trogolo, Beatrice Tarozzo, Valerio Piras, Julia Michelin Vecchini, Rouslan Senkeev, Oksana Sukhova, Luciano Cardinale, Giuseppe Maina, Salvatore Di Gioia, Davide Minniti, Truce Massimiliano, Binello Elisa, Finiguerra Ivana, Roberta Vacchelli, Fustamante Elda, Romano Gianfranco, Turja Reald, Valerio Ricci, Alessandro Maraschi, Thomas Roberts, Giovanni Volpicelli   +22 more
wiley   +1 more source

Dynamic muscle quality of the plantar flexors is impaired in claudicant patients with peripheral arterial disease and associated with poorer walking endurance [PDF]

, 2015
Objective Peripheral arterial disease and intermittent claudication (PAD-IC) negatively affects physical activity and function. There is evidence for plantarflexor muscle dysfunction and weakness; however, the extent to which this dysfunction can be ...
King, Stephanie, O'Brien, Thomas D., Vanicek, Natalie   +2 more
core   +1 more source

Primate Swallowing Is Powered by Both Rotation and Contraction of Suprahyoid Muscles

American Journal of Biological Anthropology, Volume 189, Issue 1, January 2026.
ABSTRACT Objectives Swallowing biomechanics in primates and other mammals is poorly understood, and the effect of hyoid descent on swallowing biomechanics lacks experimental interrogation. In macaques, which share similar swallowing kinematics with humans, the base of the tongue and the food bolus are hypothesized to be driven into the oropharynx by a ...
Courtney P. Orsbon, Nicholas J. Gidmark, Callum F. Ross   +2 more
wiley   +1 more source