Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Martin Lakie"'
Publikováno v:
Experimental Physiology, Vol 109, Iss 5, Pp 729-737 (2024)
Abstract Due to Achilles tendon compliance, passive ankle stiffness is insufficient to stabilise the body when standing. This results in ‘paradoxical’ muscle movement, whereby calf muscles tend to shorten during forward body sway. Natural variati
Externí odkaz:
https://doaj.org/article/de16757c193d4c8ca22e71dbec7c952e
Publikováno v:
Frontiers in Human Neuroscience, Vol 15 (2021)
ObjectiveAre people with a characteristically large physiological sway rendered particularly unstable when standing on a moving surface? Is postural sway in standing individuals idiosyncratic? In this study, we examine postural sway in individuals st
Externí odkaz:
https://doaj.org/article/49b7ce54449f42e8be4ab3d4e83f564c
Publikováno v:
PLoS ONE, Vol 16, Iss 1, p e0244993 (2021)
When standing, intrinsic ankle stiffness is smaller when measured using large perturbations, when sway size is large, and when background torque is low. However, there is a large variation in individual intrinsic ankle stiffness. Here we determine if
Externí odkaz:
https://doaj.org/article/eaa07dc4b02a4861a2542c456a8a463c
Publikováno v:
Royal Society Open Science, Vol 3, Iss 5 (2016)
People and animals can move freely, but they must also be able to stay still. How do skeletal muscles economically produce both movement and posture? Humans are well known to have motor units with relatively homogeneous mechanical properties. Thixotr
Externí odkaz:
https://doaj.org/article/0e60037f47934759bbfb4cca6d34ee71
Autor:
Kenneth S. Campbell, Martin Lakie
Publikováno v:
J Appl Physiol (1985)
Relaxed skeletal muscle has an inbuilt resistance to movement. In particular, the resistance manifests itself as a substantial stiffness for small movements. The stiffness is impermanent, because it forms only when the muscle is stationary for some t
Publikováno v:
PLoS ONE, Vol 13, Iss 3, p e0193850 (2018)
PLoS ONE
PLoS ONE
Individuals may stand with a range of ankle angles. Furthermore, shoes or floor surfaces may elevate or depress their heels. Here we ask how these situations impact ankle stiffness and balance. We performed two studies (each with 10 participants) in
Publikováno v:
Royal Society Open Science
Royal Society Open Science, 2016, 3 (5), ⟨10.1098/rsos.160065⟩
Royal Society Open Science, Vol 3, Iss 5 (2016)
Royal Society Open Science, The Royal Society, 2016, 3 (5), ⟨10.1098/rsos.160065⟩
Royal Society Open Science, 2016, 3 (5), ⟨10.1098/rsos.160065⟩
Royal Society Open Science, Vol 3, Iss 5 (2016)
Royal Society Open Science, The Royal Society, 2016, 3 (5), ⟨10.1098/rsos.160065⟩
International audience; People and animals can move freely, but they must also be able to stay still. How do skeletal muscles economically produce both movement and posture? Humans are well known to have motor units with relatively homogeneous mechan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23beef729639f33c40deebf9f8c51d19
https://hal.science/hal-01454775
https://hal.science/hal-01454775
Publikováno v:
The Journal of Physiology. 590:2471-2483
Limb resonance imparts a characteristic spectrum to hand tremor. Movement will alter the resonance. We have examined the consequences of this change. Rectified forearm extensor muscle EMG and physiological hand tremor were recorded. In postural condi
Autor:
Timothy M. Osborne, Martin Lakie
Publikováno v:
Journal of Neuroscience Methods. 202:53-59
Automated image tracking provides new insights in many physiological studies, but present methods are ad hoc and can be difficult to use. They are generally based on following the movement of one or more specific regions of interested - point trackin
Publikováno v:
Biological Cybernetics. 104:31-51
The paradigm of continuous control using internal models has advanced understanding of human motor control. However, this paradigm ignores some aspects of human control, including intermittent feedback, serial ballistic control, triggered responses a