In Vivo Evidence Of An Age-related Increase In ATP Cost Of Contraction In The Plantar Flexor Muscles

2014 ◽  
Vol 46 ◽  
pp. 456
Author(s):  
gwenael layec ◽  
Joel D. Trinity ◽  
Corey R. Hart ◽  
Seong-Eun Kim ◽  
Henderik J. Groot ◽  
...  
Keyword(s):  
Plantar Flexor ◽  
Age Related ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles ◽  
Related Increase

In vivo evidence of an age-related increase in ATP cost of contraction in the plantar flexor muscles

2013 ◽  
Vol 126 (8) ◽  
pp. 581-592 ◽  
Author(s):  
Gwenael Layec ◽  
Joel D. Trinity ◽  
Corey R. Hart ◽  
Seong-Eun Kim ◽  
Henderik Jonathan Groot ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Exercise Capacity ◽  
The Elderly ◽  
Plantar Flexor ◽  
Age Related ◽  
Flexor Muscles ◽  
Response To Exercise ◽  
Plantar Flexor Muscles ◽  
Related Increase

The present study reveals that impaired skeletal muscle efficiency potentially contributes to the age-related decline in exercise capacity and may explain the altered haemodynamic response to exercise in the elderly.

Chronic effects of muscle and nerve-directed stretching on tissue mechanics

2020 ◽  
Vol 129 (5) ◽  
pp. 1011-1023 ◽  
Author(s):  
Ricardo J. Andrade ◽  
Sandro R. Freitas ◽  
François Hug ◽  
Guillaume Le Sant ◽  
Lilian Lacourpaille ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sciatic Nerve ◽  
Peripheral Nerves ◽  
Tissue Mechanics ◽  
Plantar Flexor ◽  
Chronic Effects ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles

This study demonstrates that the mechanical properties of plantar flexor muscles and sciatic nerve can adapt mechanically to long-term stretching programs. Although interventions targeting muscular or nonmuscular structures are both effective at increasing maximal range of motion, the changes in tissue mechanical properties (stiffness) are specific to the structure being preferentially stretched by each program. We provide the first in vivo evidence that stiffness of peripheral nerves adapts to long-term loading stimuli using appropriate nerve-directed stretching.

scholarly journals Age-Related Changes in Twitch Properties of Plantar Flexor Muscles in Prepubertal Children

2005 ◽  
Vol 58 (5) ◽  
pp. 966-970 ◽  
Author(s):  
Jean-Francois Grosset ◽  
Isabelle Mora ◽  
Daniel Lambertz ◽  
Chantal Perot
Keyword(s):  
Plantar Flexor ◽  
Prepubertal Children ◽  
Age Related ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles ◽  
Age Related Changes

Differences in age-related changes in the plantar flexor muscles and Achilles tendon in men

2006 ◽  
Vol 39 ◽  
pp. S547
Author(s):  
K. Kubo ◽  
M. Morimoto ◽  
T. Komuro ◽  
N. Tsunoda ◽  
H. Kanehisa ◽  
...  
Keyword(s):  
Achilles Tendon ◽  
Plantar Flexor ◽  
Age Related ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles ◽  
Age Related Changes

Age-Related Differences in the Properties of the Plantar Flexor Muscles and Tendons

2007 ◽  
Vol 39 (3) ◽  
pp. 541-547 ◽  
Author(s):  
KEITARO KUBO ◽  
MASANORI MORIMOTO ◽  
TERUAKI KOMURO ◽  
NAOYA TSUNODA ◽  
HIROAKI KANEHISA ◽  
...  
Keyword(s):  
Plantar Flexor ◽  
Age Related ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles

scholarly journals Ultrasound-derived changes in thickness of human ankle plantar flexor muscles during walking and running are not homogeneous along the muscle mid-belly region

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
E. F. Hodson-Tole ◽  
A. K. M. Lai
Keyword(s):  
Statistical Parametric Mapping ◽  
Muscle Thickness ◽  
Ultrasound Images ◽  
Plantar Flexor ◽  
Image Region ◽  
Thickness Change ◽  
Musculoskeletal Models ◽  
Flexor Muscles ◽  
Anatomical Space ◽  
Plantar Flexor Muscles

Abstract Skeletal muscle thickness is a valuable indicator of several aspects of a muscle’s functional capabilities. We used computational analysis of ultrasound images, recorded from 10 humans walking and running at a range of speeds (0.7–5.0 m s−1), to quantify interactions in thickness change between three ankle plantar flexor muscles (soleus, medial and lateral gastrocnemius) and quantify thickness changes at multiple muscle sites within each image. Statistical analysis of thickness change as a function of stride cycle (1d statistical parametric mapping) revealed significant differences between soleus and both gastrocnemii across the whole stride cycle as they bulged within the shared anatomical space. Within each muscle, changes in thickness differed between measurement sites but not locomotor condition. For some of the stride, thickness measures taken from the distal-mid image region represented the mean muscle thickness, which may therefore be a reliable region for these measures. Assumptions that muscle thickness is constant during a task, often made in musculoskeletal models, do not hold for the muscles and locomotor conditions studied here and researchers should not assume that a single thickness measure, from one point of the stride cycle or a static image, represents muscle thickness during dynamic movements.

Characterization of torque generating properties of ankle plantar flexor muscles in ambulant adults with cerebral palsy

2019 ◽  
Vol 119 (5) ◽  
pp. 1127-1136 ◽  
Author(s):  
Rasmus Feld Frisk ◽  
Jakob Lorentzen ◽  
Lee Barber ◽  
Jens Bo Nielsen
Keyword(s):  
Cerebral Palsy ◽  
Plantar Flexor ◽  
Flexor Muscles ◽  
Plantar Flexor Muscles
Sign in / Sign up

Export Citation Format

Share Document