From Frontiers in Psychology:
Introduction: Expression is a key aspect of music performance. Studies on pianists’ gestures and expression have mainly documented the impact of their expressive intentions on proximal segments and head linear kinematics. It remains unclear how pianists’ expressive intentions influence joint angular kinematics as well as exposure to risk factors of injury, such as poor overall posture and distal jerky movements, two kinematic factors linked to injury. The first objective of this exploratory case study was to analyze the influence of pianists’ expressive intentions on proximal and distal joint range of motion (ROM) across different musical contexts. The second objective was to evaluate the impact of expressive intentions on the posture of joints that are commonly injured in pianists, as well as distal joint angular jerk. Methods: Two expert pianists (P1 and P2) performed six musical excerpts (E1–E6) in two experimental conditions: normal condition (including expressive intentions) and the control condition (strictly playing the composer’s notations written in the score with no subjective interpretation). An inertial measurement unit system recorded upper body kinematics….
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