Table 1. Effect of shoe collar height on ankle angle at touchdown (θ¸0), maximum and minimum ankle angles (θ¸min and θ¸max), ankle range of motion (θ¸ROM), ankle angle excursion during the downward phase (∆θ¸), and the jump height (h) in the weight-bearing dorsiflexion (WB-DF) maneuver, drop jump (DJ), and lay-up jump (LJ) tasks. Tasks Shoes θ¸0 (°) θ¸min (°) θ¸max (°) θ¸ROM (°) ∆θ¸ (°) h (cm) WB-DF HS N/A 85.0 ± 8.9* 112.8 ± 3.5 27. 0± 6.7* N/A N/A LS N/A 77.1 ± 7.3 108.9 ± 4.8 32.2 ± 6.6 N/A N/A Mean difference (95% CI) N/A 7.9 (4.7–11.1) 3.9 (.7–7.1) -5.2 (-8.7–-1.7) N/A N/A Cohen’s d N/A .971 .928 .782 N/A N/A Post-hoc power N/A 66.2% 62.3% 52.2% N/A N/A DJ HS 125.6 ± 9.2 90.8 ± 11.2 140.7 ± 8.7 50.0 ± 9.3 34.7±7.9 .344 ± .054 LS 125.8 ± 6.1 88.1 ± 7.5 140.3 ± 8.1 52.1 ± 8.0 37.7±7.9 .342 ± .053 Mean difference (95% CI) -0.2 (-3.8–3.4) 2.1 (-2.5–6.7) 0.4 (-2.5–3.3) -2.1 (-3.9–-0.3) -3.0 (-6.3–0.3) .002 (-.016–.020) Cohen’s d .026 .283 .048 .242 .379 .037 Post-hoc power 2.9% 10.3% 3.3% 8.6% 15.2% 3.1% LJ HS 117.8 ± 5.4 104.3 ± 7.2 136.2 ± 10.3 31.8 ± 8.1 13.6±5.8 .38 ± .05 LS 116.0 ± 6.0 103.6 ± 5.7 134.1 ± 10.6 30.6 ± 6.7 12.4±4.5 .41 ± .04 Mean difference (95% CI) 1.8 (.2–3.4) .7 (-08–2.2) 2.1 (-.3–4.5) 1.2 (-.5–2.9) 1.2 (.1–2.3) -0.03 (-.05–-.01) Cohen’s d .315 .108 .201 .161 .231 .662 Post-hoc power 11.8% 4.5% 7.1% 5.9% 8.2% 36.9% * Significantly different from LS (p < 0.05).