Musicians have recognized that physical problems often accompany playing, yet examinations of performance-related injuries and medical problems remain relatively new. The type of instrument played can affect musicians' pain-related problems as well as physical stature. The focus of this study was to determine whether physical intervention--easily performed stretches of a brief duration--administered during rehearsals at approximately 10-minute intervals would affect orchestra students' perceptions of physical discomfort. Results of analyses focused on gender and grade revealed no significant differences, although the independent variable of instrument showed a significant difference in scores before and after rehearsal. Treatment group participants' levels of discomfort decreased in contrast to control group participants' scores, which increased. Music educators play an important role in being proactive about preventative and rehabilitative measures. Based on this research, it is recommended that stretches be completed periodically while playing to reduce discomfort associated with performance practice. (Contains 1 figure and 1 table.)