Table 2.
Outcome | Group mean scores and (SD) | Difference within groups (95% CI) | Difference between groups (95% CI) | |||||||||
0 weeks | 4 weeks | 12 weeks | 0–4 weeks | 0–12 weeks | 4 weeks | 12 weeks | ||||||
Isometric | Isotonic | Isometric | Isotonic | Isometric | Isotonic | Isometric | Isotonic | Isometric | Isotonic | |||
(n=11) | (n=12) | (n=11) | (n=12) | (n=11) | (n=12) | (n=11) | (n=12) | (n=11) | (n=12) | |||
PCS (0–52) | 10.3 (10.7) |
13.0 (13.6) |
7.4 (7.2) |
11.2 (10.4) |
7.3 (9.8) |
6.8 (8.6) |
2.9 (5.2 to 11) |
1.8 (8.4 to 12.1) |
3.0 (6.1 to 12.1) |
6.3 (3.4 to 15.9) |
0.7 (−4.4 to 5.8) |
−3.3 (−12.8 to 6.3) |
p=0.462 | p=0.714 | p=0.500 | p=0.193 | p=0.777 | p=0.487 | |||||||
HOOS (0–100) | ||||||||||||
Symptoms | 60.9 (15.6) |
65.0 (18.7) |
67.3 (14.2) |
64.2 (17.8) |
72.7 (19.8) |
76.7 (12.5) |
6.4 (−6.9 to 19.6) |
−0.8 (−16.3 to 14.6) |
11.8 (−4.0 to 27.7) |
11.7 (−1.8 to 25.3) |
8.7 (−11.4 to 28.7) |
0.2 (−19.3 to 19.6) |
P=0.329 | P=0.912 | P=0.136 | P=0.086 | P=0.378 | P=0.987 | |||||||
Pain | 53.6 (15.8) |
53.8 (16.8) |
61.1 (15.5) |
59.8 (15.9) |
65.7 (20.2) |
70.7 (24.3) |
7.5 (−6.4 to 21.4) |
6.0 (−7.0 to 19.1) |
12.0 (−3.6 to 27.6) |
17.0 (0.7 to 33.3) |
−0.3 (−17.1 to 16.4) |
−3.4 (−27.0 to 20.2) |
P=0.274 | P=0.351 | P=0.125 | P=0.042 | P=0.966 | P=0.768 | |||||||
Function/daily living | 59.4 (18.4) |
64.0 (17.4) |
68.5 (18.3) |
68.9 (17.8) |
72.56 (19.7) |
73.0 (26.8) |
9.1 (−7.7 to 25.8) |
4.9 (−9.1 to 18.9) |
13.2 (−3.7 to 30.1) |
9.0 (−8.6 to 26.5) |
0.7 (−18.9 to 20.3) |
1.6 (−23.1 to 26.4) |
P=0.272 | P=0.480 | P=0.144 | P=0.303 | P=0.937 | P=0.890 | |||||||
Sports | 51.1 (26.4) |
60.0 (20.8) |
60.4 (23.6) |
61.0 (17.7) |
63.8 (23.2) |
68.8 (28.9) |
9.3 (−13.5 to 32.2) |
1.0 (−15.5 to 17.5) |
12.7 (−10.2 to 35.6) |
8.7 (−12.3 to 29.8) |
10.2 (−9.0 to 29.4) |
7.2 (−14.8 to 29.1) |
P=0.402 | P=0.899 | P=0.260 | P=0.398 | P=0.280 | P=0.502 | |||||||
QoL | 44.3 (22.6) |
50.0 (16.0) |
51.7 (12.5) |
50.0 (20.0) |
56.8 (20.4) |
67.2 (19.2) |
7.6 (−7.6 to 22.8) |
0.0 (−14.6 to 14.6) |
12.5 (−6.3 to 31.3) |
17.2 (3.2 to 31.2) |
5.6 (−11.6 to 22.7) |
−10.7 (−28.9 to 7.4) |
P=0.313 | P=1.000 | P=0.180 | P=0.018 | P=0.503 | P=0.231 | |||||||
EQ-5D-5L | ||||||||||||
Index (0–1) | 0.64 (0.19) |
0.63 (0.15) |
0.69 (0.14) |
0.62 (0.17) |
0.70 (0.15) |
0.69 (0.18) |
0.05 (−0.104 to 0.194) |
−0.01 (−0.147 to 0.128) |
0.06 (−0.089 to 0.217) |
0.07 (−0.076 to 0.201) |
0.040 (−0.063 to 0.142) |
−0.03 (−0.132 to 0.125) |
P=0.535 | P=0.887 | P=0.397 | P=0.343 | P=0.435 | P=0.960 | |||||||
Health score (0–100) | 66.8 (13.8) |
70 (19.3) |
66.8 (15.4) |
69.2 (16.5) |
70.5 (15.7) |
72.1 (20.5) |
0.0 (−13.0 to 13.0) |
−0.8 (−16.0 to 14.34) |
3.6 (−9.5 to 16.8) |
2.1 (−14.8 to 18.9) |
0.8 (−13.7 to 15.4) |
1.6 (−18.6 to 21.7) |
P=1.000 | P=0.911 | P=0.571 | P=0.800 | P=0.906 | P=0.871 | |||||||
IPAQ-SF | ||||||||||||
Low | 4 | 3 | 3 | 3 | 4 | 4 | ||||||
Moderate | 4 | 5 | 7 | 4 | 3 | 3 | ||||||
High | 3 | 4 | 1 | 4 | 3 | 4 | ||||||
(one missing) | (one missing) | (one missing) |
EQ-5D-5L, 5-level Euro Qol; HOOS, Hip Disability and Osteoarthritis Outcome Score; IPAQ-SF, International Physical Activity Questionnaire Short Form; PCS, Pain Catastrophising Scale; QoL, quality of life.