Table 2.

Demographics, alpha angles, and anterior offset ratios for the participants who were included

	Males	SD	Females	SD
AOR: anterior offset ratio.
No.	39		44
Mean age, years	48	12	44	11
age range	28–69		22–67
Mean internal rotation
at 90° flexion (°)	24	7	32	6
Mean alpha angle (°)	48	8	47	8
95% CI	45–50		45–49
Mean AOR	0.19	0.03	0.19	0.03
95% CI	0.18–0.20		0.18–0.20