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Table 3 Outcome measures at six weeks after completion of trial in retro walking, forward walking, and control groups (Intention-to-treat analysis, n = 68)

From: Effect of 6-week retro or forward walking program on pain, functional disability, quadriceps muscle strength, and performance in individuals with knee osteoarthritis: a randomized controlled trial (retro-walking trial)

Variables

Retro walking (RW) group

Forward walking (FW) group

Control group (CG)

ANOVA

Post hoc analysis (Bonferroni)

Mean (SD)

95% CI

Mean changes

Mean (SD)

95% CI

Mean changes

Mean (SD)

95% CI

Mean changes

F

p

RW vs. FW

RW vs. CG

FW vs. CG

NRS

3.9 (1.1)

3.4, 4.3

1.8

4.6 (1.3)

3.9, 5.2

1.5

4.8 (0.8)

4.5, 5.2

1

4.584

0.014*

0.10

0.01†

0.94

WOMAC (%)

48.1 (3.4)

46.6, 49.6

4.8

50.2 (4.2)

48.4, 52.1

3.1

51.6 (3.6)

49.9, 53.2

2.2

4.941

0.010*

0.16

0.008†

0.74

Quadriceps muscle strength (kg)

12.8 (1.9)

11.8, 13.6

1.7

12 (1.7)

11.3, 12.7

0.96

10.9 (2.3)

9.9, 11.9

0.7

4.854

0.011*

0.549

0.008†

0.241

TUG (sec)

8.8 (0.5)

8.6, 9.1

0.6

9.1 (0.3)

8.9, 9.3

0.2

9.2 (0.3)

9.1, 9.4

0.1

6.171

0.004*

0.06

0.003†

0.89

  1. ANOVA analysis of variance, NRS numerical rating scale, WOMAC Western Ontario and McMaster Universities Osteoarthritis Index, TUG timed up and go test, CI Confidence interval, SD Standard deviation
  2. *p < 0.05. †p (adjusted) < 0.017