Reliability (ICC) and interpretability (MDC) of the ASH test—Mean NPF
| Test position | Day 1* | Day 2* | CV (%) | TE (90% CL) | CIM (90% CL) | ICC (90% CL)† | SEM | MDC90 | MDC% | |
| I | 151.5±51.7 | 155.5±49.2 | 6.7 (5.2–9.5) | 9.5 (7.4 to 13.2) | 4 (−1.49 to 9.49) | 0.97 (0.93 to 0.99) | 8.6 | 17.1 | 11.1 | |
| Dominant arm | Y | 132.8±41.1 | 133.3±39.8 | 7.3 (5.7–10.4) | 8.1 (6.4 to 11.4) | 0.5 (−4.3 to 5.2) | 0.96 (0.92 to 0.98) | 8.2 | 22.7 | 16.9 |
| T | 123.8±32.8 | 125.4±35.6 | 5.0 (3.9–7) | 5.5 (4.3 to 7.7) | 1.7 (−1.53 to 4.86) | 0.98 (0.95 to 0.99) | 4.8 | 13.3 | 10.7 | |
| I | 144.9±48.9 | 143.4±47.3 | 11.3 (8.8–16.2) | 11.3 (8.8 to 15.8) | −1.4 (−8.0 to 5.1) | 0.95 (0.89 to 0.98) | 10.8 | 21.3 | 14.8 | |
| Non-dominant arm | Y | 125.2±37.5 | 132.7±38.7 | 9.2 (7.2–13.1) | 9.9 (7.8 to 13.9) | 7.5 (1.76 to 13.28) | 0.94 (0.87 to 0.97) | 9.4 | 25.9 | 20.1 |
| T | 118.6±29.9 | 121.8±33.1 | 7.3 (5.7–10.3) | 7 (5.5 to 9.8) | 3.2 (-0.9 to 7.3) | 0.96 (0.92 to 0.98) | 6.3 | 17.5 | 14.5 |
Values expressed in Newtons (N) unless given as a percentage with 90% CL.
*Mean±SD.
†ICC presented with 90% CL.
ASH, Athletic Shoulder; CIM, change in mean; CL, confidence levels; CV, coefficient of variation; ICC, intraclass correlation coefficient; MDC, minimum detectable change; NPF, net peak force; SEM, SE of measurement; TE, typical error.