ELBOW KINEMATICS DURING SIT-TO-STAND AND STAND-TO-SIT MOVEMENTS

The sit-to-stand and stand-to-sit movements of 10 healthy women (mean age 52.4 years) were subjected to a descriptive analysis that yielded a definition of phases, determination of the peak angles reached, maxi mum angular velocity during each movement, and the sequencing of key e vents. While subjects showed little intrasubject variability, intersub ject variability was evident. Subjects differed in the joint angles an d angular velocity recorded, but the sequence of flexion/extension and rotation events were unchanged. Changes in direction of flexion/exten sion and rotation tended to occur very close in time, if not at the sa me time.