Table 3. Relationship between change amount of each measurement item and initial value.

		Correlation coefficient	Partial correlation coefficient
Life Space Assessment		−0.476**	−0.479**
Quadriceps strength	Operative side	−0.753**	−0.746**
	Non-operative side	−0.361**	−0.371**
CS-30		−0.284*	−0.199
OLS	Operative side	0.226	0.190
	Non-operative side	0.124	−0.424**
5MWS		−0.762**	−0.878**
TUG		−0.602**	−0.799**
WOMAC-J	Operative side pain	−0.759**	−0.754**
	Non-operative side pain	−0.584**	−0.581**
	Function	−0.605**	−0.587**
SEPAF	Walking	−0.427**	−0.448**
	Stair-climbing	−0.540**	−0.670**
	Lifting a weight	−0.290*	−0.368**

**p<0.01, *p<0.05. Abbreviations: See Table 2.