Kinematic Analysis of Healthy Hips during Weight-Bearing Activities by 3D-to-2D Model-to-Image Registration Technique

Table 1

The hip adduction/abduction [adduction +, abduction −] and internal/external rotation [internal +, external −] angles at the maximum hip flexion during gait, chair-rising, and squatting.

Activities	Maximum hip flexion (°)	Hip adduction/abduction (°)	Hip internal/external rotation (°)
Gait	29.6 ± 2.7	0.9 ± 3.1	2.3 ± 7.8
Chair-rising	81.3 ± 13.6	−0.7 ± 5.9	−22.5 ± 12.1
Squatting	102.4 ± 12.3	−7.0 ± 12.5	−31.6 ± 8.7

Values are expressed as mean ± SD.