Adolescent boys who participate in sports exhibit similar ramp torque control with young men despite differences in strength and tendon characteristics.

Autor: Choi YJ; Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, 32611-8205, USA., Chalatzoglidis G; Laboratory of Neuromechanics, Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Serres, Greece., Trapezanidou M; Laboratory of Neuromechanics, Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Serres, Greece., Delmas S; Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, 32611-8205, USA., Savva E; Laboratory of Neuromechanics, Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Serres, Greece., Yacoubi B; Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, 32611-8205, USA., Arabatzi F; Laboratory of Neuromechanics, Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Serres, Greece., Christou EA; Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, 32611-8205, USA. eachristou@ufl.edu.; Department of Neurology, Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, USA. eachristou@ufl.edu.
Jazyk: angličtina
Zdroj: European journal of applied physiology [Eur J Appl Physiol] 2023 May; Vol. 123 (5), pp. 965-974. Date of Electronic Publication: 2023 Jan 06.
DOI: 10.1007/s00421-022-05130-y
Abstrakt: Purpose: The goal of this paper was to determine if sports participation influences torque control differently for adolescent boys and young men during a slow ramp task.
Methods: Twenty-one adolescent boys (11 athletes) and 31 young men (16 athletes) performed a slow ramp increase in plantar flexion torque from 0 to maximum. We quantified torque control as the coefficient of variation (CV) of torque during the ramp and quantified the Achilles tendon mechanical properties using ultrasonography.
Results: Relative to adolescent boys, young men were taller, heavier, stronger, and had a longer and stiffer Achilles tendon. However, these characteristics were not different between athletes and non-athletes in adolescent boys. For the CV of torque, there was a significant interaction with sports participation, indicating that only adolescent boys who were non-athletes had greater variability than young men. The CV of torque of all participants was predicted from the maximum torque and torque oscillations from 1 to 2 Hz, whereas the CV of torque for adolescent boys was predicted only from torque oscillations from 1 to 2 Hz.
Conclusion: These findings suggested that adolescent boys who participate in sports exhibited lower torque variability during a slow ramp task, which was not explained by differences in Achilles tendon properties or strength.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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