OPErA Orchestral Posture Egonomic Assessment

This is an observational study that will allow to understand if and how posture at the instrument can affect musician health and ability to work. The study will last 3 years during which the investigators will evaluate 250 orchestral players: all musical instruments will be included. Postural assessments will be performed in the various venues of the participating orchestras. The study participant, would initially answer a questionnaire that will investigate lifestyle habits (physical activity), professional activity (e.g. instrument played, hours of study/work, study methods) and general health (e.g. presence of pain with functional limitation at the present time or in the past, diagnosis of scoliosis). The subsequent postural assessment will consist of two phases: phase 1 without an instrument in a sitting position, phase 2 with the musical instrument . Disposable ECG electrodes wi