Presentation Type
Oral Presentation
Keywords
shoulder biomechanics, musician posture, EMG, lumbar support
Department
Sports Medicine
Major
Sports Medicine, B.S.
Abstract
Instrument-specific holding mechanics in violinists likely contribute to a high incidence of playing related musculoskeletal disorders (PRMDs). The inclusion of a lumbar support while playing may alleviate potential risks for PRMDs. PURPOSE: To investigate the effects of lumbar support on left holding shoulder musculature electromyography (EMG) activity and thigh, trunk, and hip kinematics. METHODS: Eleven (6 F; 5 M) collegiate musicians (19.5±1.3 years, 1.71±0.1 m, 68.1±7.7 kg, playing experience: 10.0±3.9 years, weekly playing time: 14.1±8.2 hours) gave voluntary informed consent and performed Prelude from Suite No. 1 in G Major (JS Bach, BWV 1007) with and without a lumbar support. Average and normalized mean RMS EMG activation for eight shoulder muscles were determined for both the beginning (measures 1–4) and end sections (measures 39–42) of the piece. Mean absolute hip kinematic values were calculated from absolute trunk and thigh angles and computed at 20% normalized time intervals during each music section. Repeated measures ANOVAs were used to assess the effects of lumbar support and time (beginning and end sections) on shoulder musculature EMG and hip kinematics. RESULTS: Significant differences (pCONCLUSION:The task of playing a violin and the resultant natural dynamic movement that occurs during a music performance was not altered by the presence of absence of a lumbar support. Thus, a lumbar support likely has minimal effect on the risk of PRMDs in violinists.
Faculty Mentor
Michael T. Soucy
Funding Source or Research Program
Summer Undergraduate Research Program
Presentation Session
Session E
Start Date
23-4-2021 4:00 PM
End Date
23-4-2021 4:15 PM
Included in
The Effect of Lumbar Support on Holding Shoulder Electromyography and Trunk Kinematics in Collegiate Violinists
Instrument-specific holding mechanics in violinists likely contribute to a high incidence of playing related musculoskeletal disorders (PRMDs). The inclusion of a lumbar support while playing may alleviate potential risks for PRMDs. PURPOSE: To investigate the effects of lumbar support on left holding shoulder musculature electromyography (EMG) activity and thigh, trunk, and hip kinematics. METHODS: Eleven (6 F; 5 M) collegiate musicians (19.5±1.3 years, 1.71±0.1 m, 68.1±7.7 kg, playing experience: 10.0±3.9 years, weekly playing time: 14.1±8.2 hours) gave voluntary informed consent and performed Prelude from Suite No. 1 in G Major (JS Bach, BWV 1007) with and without a lumbar support. Average and normalized mean RMS EMG activation for eight shoulder muscles were determined for both the beginning (measures 1–4) and end sections (measures 39–42) of the piece. Mean absolute hip kinematic values were calculated from absolute trunk and thigh angles and computed at 20% normalized time intervals during each music section. Repeated measures ANOVAs were used to assess the effects of lumbar support and time (beginning and end sections) on shoulder musculature EMG and hip kinematics. RESULTS: Significant differences (pCONCLUSION:The task of playing a violin and the resultant natural dynamic movement that occurs during a music performance was not altered by the presence of absence of a lumbar support. Thus, a lumbar support likely has minimal effect on the risk of PRMDs in violinists.