Journal of Applied Sports Sciences 5(1): 67-79, doi: 10.37393/JASS.2021.01.6
PALMARIS LONGUS MUSCLE CONTRIBUTION TO MAXIMUM TORQUE AND STEADINESS IN HIGHLY SKILLED GRIP AND NON-GRIP SPORT POPULATIONS
Konstantinos Salonikidis‡, Aikaterini Mantziou‡, Konstantinos Papageorgiou§, Fotini Arabatzi‡‡ Laboratory of Neuromechanics, Department of Physical Education and Sport Science at Serres, Aristotle University of Thessaloniki, Thessaloniki, Greece§ Department of Informatics, Ionian University, Corfu, Greece
© Konstantinos Salonikidis, Aikaterini Mantziou, Konstantinos Papageorgiou, Fotini Arabatzi. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Citation:
Salonikidis K, Mantziou A, Papageorgiou K, Arabatzi F (2021) PALMARIS LONGUS MUSCLE CONTRIBUTION TO MAXIMUM TORQUE AND STEADINESS IN HIGHLY SKILLED GRIP AND NON-GRIP SPORT POPULATIONS. Journal of Applied Sports Sciences 5(1): 67-79. https://doi.org/10.37393/JASS.2021.01.6 |  |
Abstract
Background: The anatomy, origin, function, and appearance of the Palmaris Longus Muscle (PLM) in different populations are well studied. However, little is known about its contribution to wrist flexion movements in sports. This study investigates whether the existence or absence of the PLM affects maximal torque output or torque consistency of submaximal wrist flexion moment. Methods: One hundred ninety-seven well-trained sports students were clinically examined to ascertain the presence of the PLM. Forty of them from different sport disciplines were assigned to two groups (athletes in handgrip sports: HG, athletes in non-handgrip sports: NHG). Their 80 upper limbs were divided based on the PLM-presence/absence and hand-dominance/non-dominance. Maximal Isometric Torque (MIT) at 150º, 180º, and 210º wrist angle, and torque steadiness at 150º and 180º, at 25%, 50%, and 75% of MIT were measured on a Humac Norm dynamometer. Results: In all MIT tests, HGs significantly surpassed NHGs, independently of the dominant or non-dominant side in presence of the PLM (p
Keywords
isometric torque, maximal torque, torque variability, laterality