This project aims to investigate how the instrument’s dimensions and string length-dependent finger spacing affect muscle activity and perceived effort in a player’s left hand and arm in conjunction with position effects on these parameters. Results will allow for physiological guidelines and specific pedagogical recommendations as well as for targeted choice of instrument, ergonomic optimisation and prevention of playing-related health problems.
Although the great variability of violas dimensions and string length-dependent finger spacings is a common fact, no scientifically founded knowledge exists on how these parameters factor into the still worrying incidence of medical complaints in violists in interdependency with the instrument’s position. Considering results for the violin based on our previous research, there remains a lack of scientifically-based knowledge regarding ergonomic aspects of the viola for all age groups and proficiency levels. Due to the instrument’s distinct differences from the violin, it is for the first time that research with this specific focus is carried out. This project aims to investigate how the instrument’s dimensions and string length-dependent finger spacing affect muscle activity and perceived effort in a player’s left hand and arm in conjunction with position effects on these parameters. Quantitative intra-individual comparisons will examine the individual limiting or beneficial factors of biomechanics and musculature (e.g. strength and endurance) in the upper left extremity, muscle activity and perceived effort when playing violas with different dimensions and string lengths in standardised positions with and without the bow. Results will allow for physiological guidelines and specific pedagogical recommendations as well as for ergonomic optimisation and prevention of playing-related health problems. It is hypothesised that this approach will make a more individualised, targeted choice of instrument and quicker ergonomic adjustments thereof possible. Moreover, viola players may receive better support when it comes to diagnosis and treatment, thereby expanding this line of research to other instrument groups.