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Paired changes in electromechanical delay and musculo-tendinous stiffness after endurance or plyometric training
- J. Grosset, J. Piscione, D. Lambertz, C. Pérot
- Engineering, BiologyEuropean Journal of Applied Physiology
Changes in EMD values are proposed to indirectly link to changes in musculo-tendinous stiffness for subjects involved in muscle training to investigate paired changes in these two parameters after a training period.
Voluntary activation of the triceps surae in prepubertal children.
Evaluation of musculotendinous stiffness in prepubertal children and adults, taking into account muscle activity.
The stiffness index originally defined as the slope of the angular stiffness-EMG relationship increased significantly with age toward adult values, underlined the necessity to take into account the capacities of muscle activation to quantify changes in elastic properties of muscles, when those capacities are suspected to be altered.
Age-Related Changes in Twitch Properties of Plantar Flexor Muscles in Prepubertal Children
The link between growth processes and the increase in twitch torque for prepubertal children within a limited range of age was confirmed and the time-course characteristics were not affected by age.
Effects of long-term spaceflight on mechanical properties of muscles in humans.
This invariance suggests an adaptive mechanism to counterbalance the decrease in stiffness of passive structures by an increased active stiffness, and changes in neural drive could participate in this equilibrium.
Changes in stretch reflexes and muscle stiffness with age in prepubescent children.
It is concluded that prepubescent children have smaller T reflexes and stretch reflexes than adults, and the lower musculoarticular stiffness is mainly responsible for these smaller reflexes, as indicated by the parallel increases in reflex and stiffness.
Changes in mechanical properties of human plantar flexor muscles in ageing
Changes in stiffness induced by hindlimb suspension in rat Achilles tendon
- M. Almeida-Silveira, D. Lambertz, C. Pérot, F. Goubel
- BiologyEuropean Journal of Applied Physiology
Differences in tendon stiffness obtained here, along with those found by other investigators, encourage the hypothesis that homeostatic responses of soft tissues are due to changes in limb loadings and may be useful in providing a better understanding of the adaptation of human skeletal muscle when exposed to microgravity.
Influence of training background on the relationships between plantarflexor intrinsic stiffness and overall musculoskeletal stiffness during hopping
- G. Rabita, A. Couturier, D. Lambertz
- Biology, EngineeringEuropean Journal of Applied Physiology
- 26 January 2008
The data indicate that, while elite jumpers presented higher stiffness of both musculotendinous and passive musculoarticular structures, a high compliance of musculoskeletal system was beneficial to optimize the performance in vertical hopping for these athletes.
Influence of long-term spaceflight on neuromechanical properties of muscles in humans.
The present study shows that peripheral influences take part in reflex changes in gravitational unloaded muscles, but can only be revealed when central influences are reduced.