Ioannou Christos I, Hodde-Chriske Franziska L, Avraamides Marios N, Altenmüller Eckart
CYENS Centre of Excellence, 01 Dimarchou Lellou Demitriade Square, Nicosia, 1016, Cyprus.
Institute of Music Physiology and Musicians' Medicine, Hanover University of Music, Drama and Media, Hanover, Germany.
J Occup Med Toxicol. 2024 Aug 14;19(1):34. doi: 10.1186/s12995-024-00430-9.
This study aimed to explore the impact of occupational activities involving extensive finger movement on the muscular characteristics of the forearms. In particular, the flexor digitorum (FD) muscular thickness and strength asymmetry between right and left hand were compared between musicians and non-musicians.
Ultrasonography was employed to measure the thickness of the FD in each hand, while a validated custom-made device was used to assess the strength of the flexor and extensor digitorum (ED). Initially, muscle differences were estimated by computing the asymmetry index between dominant and non-dominant hands. To assess potential occupational disparities, comparisons of the asymmetry index were conducted between 25 right-handed instrumental musicians and 25 right-handed non-musicians.
Musicians exhibited lower asymmetry between dominant and non-dominant hands in both FD thickness and ED strength when compared to non-musicians. This effect was particularly pronounced in musicians playing instruments that extensively use the left-hand fingers (e.g., violinists).
Occupational activities, such as playing a musical instrument, can alter forearm muscle mass and strength distribution between dominant and non-dominant hands. This underscores the importance of considering occupational parameters in clinical or experimental interventions and musculoskeletal assessments.
本研究旨在探讨涉及广泛手指运动的职业活动对前臂肌肉特征的影响。具体而言，比较了音乐家和非音乐家左右手之间指屈肌（FD）的肌肉厚度和力量不对称情况。
采用超声测量每只手FD的厚度，同时使用经过验证的定制设备评估指屈肌和指伸肌（ED）的力量。最初，通过计算优势手和非优势手之间的不对称指数来估计肌肉差异。为了评估潜在的职业差异，对25名右利手乐器演奏音乐家和25名右利手非音乐家的不对称指数进行了比较。
与非音乐家相比，音乐家在FD厚度和ED力量方面，优势手和非优势手之间的不对称性更低。这种效应在演奏大量使用左手手指乐器的音乐家（如小提琴家）中尤为明显。
诸如演奏乐器等职业活动可改变优势手和非优势手之间的前臂肌肉质量和力量分布。这凸显了在临床或实验干预以及肌肉骨骼评估中考虑职业参数的重要性。
