Table 2

Secondary outcome measures

OutcomeGroup mean scores and (SD)Difference within groups (95% CI)Difference between groups (95% CI)
0 weeks4 weeks12 weeks0–4 weeks0–12 weeks4 weeks12 weeks
IsometricIsotonicIsometricIsotonicIsometricIsotonicIsometricIsotonicIsometricIsotonic
(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=0.462p=0.714p=0.500p=0.193p=0.777p=0.487
HOOS (0–100)
Symptoms60.9
(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=0.329P=0.912P=0.136P=0.086P=0.378P=0.987
Pain53.6
(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=0.274P=0.351P=0.125P=0.042P=0.966P=0.768
Function/daily living59.4
(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=0.272P=0.480P=0.144P=0.303P=0.937P=0.890
Sports51.1
(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=0.402P=0.899P=0.260P=0.398P=0.280P=0.502
QoL44.3
(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=0.313P=1.000P=0.180P=0.018P=0.503P=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=0.535P=0.887P=0.397P=0.343P=0.435P=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=1.000P=0.911P=0.571P=0.800P=0.906P=0.871
IPAQ-SF
Low433344
Moderate457433
High341434
(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.