Table 1.

Summary of operational movement definitions.

MRI-VRGP itemsa	Definitions
Close reach	Flexion of elbow >90 °
Far reach	Flexion of elbow <90 °
Front weight shift inside base of support	Front inclination >10° without bending knees
Side weight shift inside base of support	Side inclination >10° with or without bending knees
Single leg stance	Single leg stance > 2 seconds
Front weight shift outside base of support	Forward step
Side weight shift outside base of support	Side step
Back weight shift outside base of support	Backward step
Cross midline weight shift outside base of support	Forward or backward step that crosses the midline
Squat	Knee bend with forward inclination of trunk
Jump	Clearing ground with both feet

^aMRI-VRGP: Movement Rating Instrument for Virtual Reality Game Play.