Hip Abductor Strengthening Improves Physical Function Following Total Knee Replacement: One-Year Follow-Up of a Randomized Pilot Study

Table 3: Between group analysis of outcome measures.

Outcome measures	Baseline to 1 month Mean (95% CI)	p value	Baseline to 3 month Mean (95% CI)	p value	Baseline to 1 Year Mean (95% CI)	p value
Between group analysis
Knee strength	-2.3(.5-.4)	<0.040	-2.9(-5.3 - -.45)	<0.023	-3.2(-6.5-.18)	<0.062
Hip abductor strength	3.0(.6-5.5)	<0.018	4.0(1.2-6.7)	<0.005	5.4(3.3-7.5)	<0.001
SMWT	19(-29.4-68.3)	<0.410	53.6(-10.4-117.7)	<0.095	88.3(36.5-140.2)	<0.002
SLS	-.82(-3.4-1.7)	<0.511	4.2(1.5-6.9)	<0.004	3.9(1.8-5.9)	<0.001
TUG	-.45(-5.6-4.7)	<0.857	.25(-3.2-3.7)	<0.883	.77(-2.9-4.4)	<0.661
NPRS	0.025(-1.4-1.5)	<0..972	1.02(-.4-2.4)	<0.148	-.72(-2.4-.86)	<0.330

SMWT- Six minute walk test, measured in meters; TUG- Timed up and Go test , measured in seconds; SLS- Single leg stance test, measured in seconds; NPRS- Numeric pain rating scale ; Knee strength ( quadriceps strength) in pounds; Hip abductor strength in pounds.