Fig. 4

A heat map generated from the location of MSK pain data of the six groups, which have been divided according to the playing posture. Dark red represents the most frequently reported location. The vertical dimension of the six categories depends on the samples size of each group. Elevated both frontal (n = 28): Music students playing musical instruments with both arms elevated in a frontal position; Elevated both left (n = 65): Music students playing musical instruments with both arms elevated in the left quadrant position; Elevated left (n = 28): Music students playing musical instruments with only the left arm elevated; Elevated right (n = 50): Music students playing musical instruments with only the right arm elevated; Neutral (n = 132): Music students playing musical instruments in a neutral position, without the elevation of arms; Singers (n = 37)