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Table 2 Mean percentage change in strength of 21 subjects randomized to a postoperative exercise intervention or usual care following primary total hip arthroplasty

From: A randomized pilot study of a comprehensive postoperative exercise program compared with usual care following primary total hip arthroplasty in subjects less than 65 years of age: feasibility, selection of outcome measures and timing of assessment

 

Mean% change from preop to 6 weeks (Pre-intervention)

Mean% change from 6 weeks (Pre-intervention) to 4 months (Post-intervention)

Mean% change from 4-months to 12-months postoperative

 

Post-intervention

 

Intervention

Control

Intervention

Control

Intervention

Control

P-value for group effect*

(n = 11)

(n = 10)

(n = 11)

(n = 10)

(n = 11)

(n = 10)

Performance-based measures

       

 Hip flexion (SD)

−24.2 (31.7)

−7.7 (40.0)

73.8 (50.1)

39.8 (64.1)

−2.5 (11.8)

5.3 (19.1)

0.69

 Hip extension (SD)

−13.2.9 (27.7)

−7.5 (52.3)

50.5 (26.1)

30.5 (67.3)

3.1 (30.2)

12.2 (26.8)

0.78

 Hip External rotation (SD)

−52.2 (14.3)

−34.7 (36.4)

54.2 (33.2)

9.4 (21.6)

3.9 (26.3)

34.0 (24.2)

0.89

 Hip internal rotation (SD)

−24.6 (46.9)

−33.6 (34.1)

46.7 (83.2)

35.7 (28.0)

14.2 (48.0)

−0.1 (22.4)

0.14

 Abduction (SD)

-

-

37.8 (62.9)

6.2 (48.1)

13.0 (20.1)

16.5 (48.1)

0.25

  1. Legend: SD = Standard Deviation.
  2. *Analyzed using a 2-way Repeated Measures ANOVA.