Table 3.
Inter-day reliability statistics reporting Cronbach’s α and ICC single and average measures and standard error of measurement (SEM) reported in Watts and 95% confidence intervals (CI) for 0.025, 0.050, 0.075, and 0.100 kg·m−2 flywheel Romanian deadlift mean power outputs between complete sets over the 4 familiarization testing sessions for the internal and external attentional focus groups.
| Intraclass Correlation Coefficient (ICC) Internal Group |
|||||||
|---|---|---|---|---|---|---|---|
| Inertial Loads | Cronbach’s α | Single Measure | 95% CI | Average Measure | 95% CI | SEM | |
| 0.025 kg·m2 (Day 1–2) | 0.76 | 0.61 | 0.26–0.82 | 0.76 | 0.41–0.90 | 41.86 | |
| 0.025 kg·m2 (Day 2–3) | 0.68 | 0.51 | 0.12–0.77 | 0.68 | 0.21–0.87 | ||
| 0.025 kg·m−2 (Day 3–4) | 0.83 | 0.71 | 0.41–0.87 | 0.83 | 0.58–0.93 | ||
| 0.050 kg·m2 (Day 1–2) | 0.59 | 0.43 | 0.01–0.73 | 0.61 | 0.02–0.84 | 49.41 | |
| 0.050 kg·m2 (Day 2–3) | 0.67 | 0.52 | 0.11–0.77 | 0.68 | 0.20–0.87 | ||
| 0.050 kg·m2 (Day 3–4) | 0.56 | 0.32 | −0.06–0.64 | 0.48 | −0.13–0.78 | ||
| 0.075 kg·m2 (Day 1–2) | 0.41 | 0.26 | −0.19–0.62 | 0.41 | −0.46–0.76 | 35.91 | |
| 0.075 kg·m2 (Day 2–3) | 0.77 | 0.57 | 0.18–0.80 | 0.73 | 0.31–0.89 | ||
| 0.075 kg·m2 (Day 3–4) | 0.47 | 0.26 | −0.11–0.59 | 0.41 | −0.25–0.74 | ||
| 0.100 kg·m2 (Day 1–2) | −0.49 | −0.20 | −0.60–0.25 | −0.51 | −3.03–0.40 | 30.99 | |
| 0.100 kg·m2 (Day 2–3) | 0.68 | 0.30 | −0.11–0.65 | 0.46 | −0.24–0.78 | ||
| 0.100 kg·m2 (Day 3–4) | 0.66 | 0.48 | 0.09–0.75 | 0.65 | 0.17–0.85 | ||
| External Group | |||||||
| Inertial loads | Cronbach’s α | Single Measure | 95% CI | Average Measure | 95% CI | SEM | |
| 0.025 kg·m2 (Day 1–2) | 0.79 | 0.66 | 0.33–0.85 | 0.80 | 0.49–0.92 | 37.06 | |
| 0.025 kg·m2 (Day 2–3) | 0.95 | 0.84 | 0.27–0.95 | 0.91 | 0.43–0.97 | ||
| 0.025 kg·m2 (Day 3–4) | 0.92 | 0.85 | 0.67–0.94 | 0.92 | 0.80–0.97 | ||
| 0.050 kg·m2 (Day 1–2) | 0.75 | 0.60 | 0.25–0.81 | 0.75 | 0.34–0.90 | 30.10 | |
| 0.050 kg·m2 (Day 2–3) | 0.85 | 0.64 | 0.14–0.85 | 0.78 | 0.25–0.92 | ||
| 0.050 kg·m2 (Day 3–4) | 0.94 | 0.89 | 0.76–0.96 | 0.94 | 0.86–0.98 | ||
| 0.075 kg·m2 (Day 1–2) | 0.65 | 0.50 | 0.08–0.76 | 0.66 | 0.15–0.87 | 26.25 | |
| 0.075 kg·m2 (Day 2–3) | 0.82 | 0.59 | 0.10–0.83 | 0.74 | 0.19–0.91 | ||
| 0.075 kg·m2 (Day 3–4) | 0.93 | 0.86 | 0.68–0.94 | 0.93 | 0.81–0.97 | ||
| 0.100 kg·m2 (Day 1–2) | 0.67 | 0.46 | 0.08–0.74 | 0.63 | 0.14–0.85 | 23.03 | |
| 0.100 kg·m2 (Day 2–3) | 0.79 | 0.55 | 0.08–0.81 | 0.71 | 0.14–0.89 | ||
| 0.100 kg·m2 (Day 3–4) | 0.93 | 0.87 | 0.71–0.95 | 0.93 | 0.83–0.97 | ||