Table 2.
Within group analysis of outcome measures.
| Outcome measures | Baseline | 1 month | 3 month | 1 year | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hip abductor strengthening group | ||||||||||||
| Knee strength | 36.1(8.4) | 36.4(8.8) | 40.9(10.1) | 41.7(7.5) | .3(-.71-1.3) | <0.520 | 4.8(2.6-6.9) | <0.001 | 5.6(2.7-8.4) | <0.002 | ||
| Hip abductor strength | 36.1(6.0) | 40.3(7.2) | 42.6(6.9) | 45.7(6.7) | 4.2(2.4-5.9) | <0.001 | 6.5(4.1-8.8) | <0.001 | 9.6(7.8-11.3) | <0.001 | ||
| SMWT | 255.1(79.2) | 304.6(108.6) | 387.6(119.5) | 474.1(160.5) | 49.5(-8.1-107.1) | <0.084 | 132.5(62.6-202.3) | <0.002 | 219(104.1-333.8) | <0.002 | ||
| SLS | 8.3(4.5) | 6.6(3.4) | 13.7(5.4) | 15.2(5.9) | -1.7 (-4.1-.75) | <0.271 | 5.4(2.5 -8.2) | < 0.001 | 6.9 (4.6-9.1) | < 0.001 | ||
| TUG | 16.3(4.2) | 17.5(3.9) | 13.3(4.0) | 11.3(2.2) | -1.2(-3.9-1.5) | <0.347 | 3(.78-5.2) | <0.013 | 5(2.1-7.8) | <0.003 | ||
| NPRS | 7.1(.56) | 4.2(1.1) | 1.7(.6) | 1.4(.9) | 2.9(1.9-3.8) | <0.001 | 5.4(4.7-6) | <0.001 | 5.7(4.9-6.4) | <0.001 | ||
| Control group | ||||||||||||
| Knee strength | 34.8(4.9) | 37.5(4.4) | 42.3(4.3) | 42.8(3.1) | 2.6(-.53-5.7) | <0.070 | 7.5(6.3-8.6) | <0.001 | 8(5.6-10.3) | <0.001 | ||
| Hip abductor strength | 36(7) | 37.12(5.8) | 37.3(6.4) | 39.8(6.2) | 1.1(-.89-3.1) | <0.229 | 1.3(.38-2.3) | <0.014 | 3.8(2.8-4.9) | <0.001 | ||
| SMWT | 201.1(64.4) | 216.8(90.5) | 319.3(134.8) | 380.6(124.7) | 15.7(-30.3-61.8) | <0.445 | 118.2(35.3-201.1) | <0.012 | 179.5(90.5-268.4) | <0.002 | ||
| SLS | 6.5(2.5) | 5.3(1.1) | 7.62(2.7) | 9.5(2.3) | -1.1(-4.8-2.6) | <0.100 | 1.1(-2.3-4.5) | <0.100 | 3(.3-5.6) | <0.027 | ||
| TUG | 18(4.3) | 18.7(5.3) | 15.2(4) | 13.8(2.6) | -.75(-6.1-4.6) | <0.754 | 2.7(-.58-6.0) | <0.092 | 4.1(1.5-6.7) | <0.007 | ||
| NPRS | 6.5(1.5) | 3.6(1.5) | 2.1(.8) | 1.1(.8) | 2.8(1.4-4.3) | <0.002 | 4.3(2.8-5.9) | <0.001 | 5.3(3.9-6.7) | <0.001 | ||
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.