Table 1.
Within and between-session test reliability data for the unilateral isometric squat, countermovement and drop jump tests.
| Test/Metric | Test Session 1 | Test Session 2 | Between Session | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ICC (95% CI) | CV (95% CI) | SEM | ICC (95% CI) | CV (95% CI) | SEM | ICC (95% CI) | CV (95% CI) | ||
| Iso Squat | PF-L (N) | 0.94 (0.88–0.97) | 5.4 (3.7–7.2) | 107.5 | 0.96 (0.92–0.98) | 4.9 (4.0–5.7) | 78.8 | 0.93 (0.86–0.97) | 6.4 (4.1–8.6) |
| PF-R (N) | 0.93 (0.87–0.96) | 5.7 (4.2–7.2) | 105.1 | 0.94 (0.89–0.97) | 5.5 (4.1–6.9) | 106.2 | 0.86 (0.72–0.93) | 7.7 (5.6–9.8) | |
| Imp-L (N·s) | 0.89 (0.80–0.94) | 13.7 (10.0–17.4) | 23.6 | 0.89 (0.81–0.95) | 10.1 (8.0–12.3) | 21.2 | 0.90 (0.80–0.95) | 8.9 (6.2–11.5) | |
| Imp-R (N·s) | 0.92 (0.85–0.96) | 12.1 (9.5–14.8) | 22.0 | 0.90 (0.83–0.95) | 10.6 (8.1–13.1) | 20.2 | 0.85 (0.70–0.93) | 12.9 (9.4–16.4) | |
| SLCMJ | JH-L (m) | 0.89 (0.81–0.95) | 4.8 (3.8–5.9) | 0.01 | 0.87 (0.77–0.93) | 4.2 (3.2–5.3) | 0.01 | 0.82 (0.65–0.91) | 3.7 (1.9–5.5) |
| JH-R (m) | 0.81 (0.68–0.90) | 5.4 (4.1–6.7) | 0.01 | 0.85 (0.74–0.92) | 5.0 (4.0–6.0) | 0.01 | 0.78 (0.59–0.89) | 4.2 (2.5–5.8) | |
| PF-L (N) | 0.89 (0.80–0.94) | 5.8 (4.5–7.1) | 67.7 | 0.93 (0.88–0.97) | 4.9 (4.1–5.6) | 42.9 | 0.85 (0.71–0.93) | 6.2 (4.3–8.1) | |
| PF-R (N) | 0.93 (0.87–0.96) | 5.3 (4.2–6.4) | 48.0 | 0.90 (0.82–0.95) | 5.0 (3.9–6.2) | 50.2 | 0.83 (0.67–0.92) | 6.3 (4.4–8.2) | |
| SLDJ | JH-L (m) | 0.90 (0.82–0.95) | 7.5 (5.4–9.7) | 0.01 | 0.94 (0.89–0.97) | 7.1 (4.3–9.9) | 0.01 | 0.74 (0.49–0.87) | 10.1 (6.3–13.9) |
| JH-R (m) | 0.90 (0.82–0.95) | 8.1 (5.9–10.2) | 0.01 | 0.93 (0.87–0.96) | 6.8 (5.3–8.4) | 0.01 | 0.75 (0.53–0.87) | 11.2 (8.0–14.5) | |
| RSI-L | 0.87 (0.77–0.93) | 4.9 (3.7–6.0) | 0.06 | 0.93 (0.88–0.97) | 4.0 (2.6–5.3) | 0.05 | 0.70 (0.37–0.86) | 6.7 (4.5–8.9) | |
| RSI-R | 0.91 (0.84–0.95) | 4.7 (3.3–6.2) | 0.06 | 0.88 (0.79–0.94) | 5.9 (4.3–7.4) | 0.07 | 0.84 (0.68–0.92) | 5.1 (3.4–6.8) | |
ICC = intraclass correlation coefficient; CI = confidence intervals; CV = coefficient of variation; SEM = standard error of the measurement; Iso = isometric; PF = peak force; Imp = impulse at 0.3 s; N = Newtons; N·s = Newton seconds; L = left; R = right; SLCMJ = single leg countermovement jump; JH = jump height; m = meters; SLDJ = single leg drop jump; RSI = reactive strength index.