Table 3 Inter-rater reproducibility of hip range of motion (deg.) and muscle strength (N) for 2 orthopaedists and 2 chiropractors
Hip range of motion measured with a goniometer to the nearest 5 deg. | Ortho 1 (deg.) Mean (SD) | Ortho 2 (deg.) Mean (SD) | Mean difference (SD) | Percent agreement (%)* | LOA (deg.) | SEM† | ICC (95% CI) |
|---|---|---|---|---|---|---|---|
Flexion (n = 48) | 113 (18) | 106 (14) | 7 (10)‡ | 71 | -12 – 26 | 8 | 0.73 (0.38 – 0.87) |
Extension (n = 48) | 6 (6) | 4 (8) | 2 (5)‡ | 79 | -8 – 13 | 4 | 0.68 (0.46 – 0.81) |
Abduction (n = 48) | 29 (10) | 26 (8) | 3 (7)‡ | 67 | -12 – 17 | 6 | 0.63 (0.41 – 0.76) |
Adduction (n = 48) | 17 (7) | 17 (7) | 0 (6) | 77 | -11 – 12 | 4 | 0.65 (0.45 – 0.79) |
Internal rotation (n = 48) | 4 (14) | 12 (14) | -8 (10)‡ | 42 | -28 – 12 | 9 | 0.63 (0.17 – 0.82) |
External rotation (n = 48) | 28 (11) | 33 (7) | -4 (9)‡ | 69 | -21 – 13 | 6 | 0.53 (0.26 – 0.72) |
Hip muscle strength measured with a dynamometer in Newton (N) | Strength (N) | Strength (N) | (N) | ||||
Abduction (n = 48) | 213 (65) | 212 (67) | 0 (37) | -72 – 72 | 26 | 0.85 (0.74 – 0.91) | |
Flexion (n = 48) | 167 (42) | 185 (50) | -21 (41)‡ | -101 – 59 | 32 | 0.55 (0.28 – 0.73) | |
Internal rotation (n = 48) | 151 (38) | 146 (36) | 5 (36) | -66 – 76 | 26 | 0.52 (0.29 – 0.70) | |
External rotation (n = 48) | 123 (34) | 132 (39) | -9 (28)‡ | -65 – 47 | 21 | 0.68 (0.49 – 0.81) | |
Hip range of motion measured with a goniometer to the nearest 5 deg. | Chiro 1 (deg.) Mean (SD) | Chiro 2 (deg.) Mean (SD) | Mean difference (SD) | Percent agreement (%)* | LOA (deg.) | SEM† | ICC (95% CI) |
Flexion (n = 61) | 112 (13) | 108 (15) | 4 (9)‡ | 83 | -14 – 21 | 7 | 0.79 (0.63 – 0.88) |
Extension (n = 61) | 9 (5) | 14 (5) | -6 (5)‡ | 66 | -16 – 5 | 5 | 0.33 (0.06 – 0.61) |
Abduction (n = 61) | 29 (9) | 22 (9) | 7 (8)‡ | 46 | -8 – 23 | 8 | 0.45 (0.01 – 0.71) |
Adduction (n = 61) | 17 (7) | 14 (5) | 3 (8)‡ | 61 | -13 – 19 | 6 | 0.14 (0.09 – 0.36) |
Internal rotation (n = 61) | 13 (10) | 11 (16) | 2 (14) | 31 | -25 – 30 | 10 | 0.44 (0.21 – 0.62) |
External rotation (n = 61) | 32 (9) | 30 (12) | 2 (11) | 59 | -19 – 23 | 8 | 0.48 (0.27 – 0.65) |
Hip muscle strength measured with a dynamometer in Newton (N) | Strength (N) | Strength (N) | (N) | ||||
Abduction (n = 61) | 141 (42) | 186 (61) | -45 (51)‡ | -146 – 55 | 48 | 0.38 (0.00 – 0.64) | |
Flexion (n = 61) | 165 (50) | 178 (65) | -11 (35)‡ | -79 – 56 | 26 | 0.81 (0.69 – 0.88) | |
Internal rotation (n = 61) | 142 (43) | 190 (49) | -48 (34)‡ | -115 – 19 | 42 | 0.48 (0.09 – 0.77) | |
External rotation (n = 61) | 120 (34) | 150 (48) | -30 (26)‡ | -80 – 20 | 28 | 0.65 (0.00 – 0.82) |