Research on Knee Joint Load and Influencing Factors of Typical Tai Chi Movements

Table 3

Partial correlation analysis of knee joint range of motion (ROM) and center of mass (COM) displacement on knee joint load.

Continuous variable	Vertical GRF		Flexion moment		Extension moment		Abduction moment		Adduction moment		Int. rotation moment		Ext. rotation moment
	Maximum knee flexion angle	0.10	n.s.	-0.13	n.s.	0.25	0.010	-0.04	n.s.	-0.14	n.s.	0.08	n.s.	-0.20	0.038
Flexion and extension ROM	-0.09	n.s.	0.11	n.s.	0.02	n.s.	0.01	n.s.	-0.09	n.s.	0.01	n.s.	0.08	n.s.
Abduction and adduction ROM	-0.06	n.s.	0.14	n.s.	0.12	n.s.	-0.03	n.s.	-0.01	n.s.	-0.08	n.s.	0.03	n.s.
Int. and ext. rotation ROM	0.02	n.s.	-0.12	n.s.	-0.04	n.s.	0.32	0.001	-0.10	n.s.	0.10	n.s.	-0.23	0.018
COM: (mm)	0.85	<0.001	-0.36	<0.001	0.22	0.021	0.77	<0.001	-0.04	n.s.	-0.04	n.s.	-0.60	<0.001
COM: (mm)	0.88	<0.001	-0.23	0.020	-0.57	<0.001	0.27	0.005	0.09	n.s.	0.28	0.003	0.06	n.s.
COM: (mm)	-0.09	n.s.	-0.13	n.s.	0.12	n.s.	-0.12	n.s.	-0.15	n.s.	0.18	n.s.	-0.03	n.s.

Int.: internal; Ext.: external. Bold values indicate significant differences, . n.s. indicates nonsignificant differences.