Performance-related musculoskeletal disorders (PRMDs) are a set of disorders that affect musicians. Although prevalence rates differ across studies and different populations of instrumentalists, one estimate of lifetime prevalence in professional musicians is 62-93%  (Kok, Huisstede, Voorn, Schoones, & Nelissen, 2016). Previous research has investigated the prevalence of PRMDs and possible risk factors, but little discusses the biomechanical correlates, especially those of the hand and fingers, of PRMDs, particularly in guitarists. Investigating such correlates could contribute to the scientific knowledge of PRMDs and offer potential directions to consider in treatment and prevention. In addition to potentially contributing to prevention and treatment methods, our research aims to provide a more comprehensive definition of PRMDs, which currently lack a specific operational definition. This lack of a specific definition creates variation across studies and reduces the ability of researchers to generalize their results (Bragge, Bialocerkowski, & McMeeken, 2005).