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. 2019 Jan 11;19(2):265. doi: 10.3390/s19020265

Table 3.

Peak force, impulse, and loading rate (LR) results for the force plate (FP) and loadsol® (LS) results of the 200 Hz loadsol®.

Speed 3.5 m/s 3.0 m/s 1.3 m/s
% Grade 0% −10% 10% 0% −10% 10% 0% −10% 10%
Peak Force (BW) FP 2.24 ± 0.30 2.19 ± 0.32 2.12 ± 0.29 2.19 ± 0.27 2.11 ± 0.27 2.15 ± 0.27 1.14 ± 0.14 1.28 ± 0.15 1.15 ± 0.16
SEM 0.09 0.10 0.09 0.09 0.09 0.09 0.05 0.05 0.05
95% CI [2.02, 2.45] [1.96, 2.42] [1.91, 2.32] [1.99, 2.19] [1.92, 2.30] [1.95, 2.34] [1.03, 1.24] [1.17, 1.39] [1.04, 1.27]
LS 2.04 ± 0.26 2.04 ± 0.29 1.98 ± 0.22 1.98 ± 0.25 1.95 ± 0.23 1.92 ± 0.22 1.13 ± 0.16 1.22 ± 0.15 1.18 ± 0.17
SEM 0.08 0.09 0.07 0.08 0.07 0.07 0.05 0.05 0.05
95% CI [1.85, 2.23] [1.83, 2.24] [1.83, 2.14] [1.80, 2.16] [1.79, 2.12] [1.76, 2.08] [1.01, 1.25] [1.11, 1.33] [1.06, 1.30]
p-value <0.01 * <0.01 * 0.06 <0.01 * <0.01 * <0.01 * 0.84 0.72 0.01 *
ICC 0.96 0.99 0.84 0.95 0.97 0.94 0.90 0.98 0.84
95% CI [0.84, 0.99] [0.97, 1.00] [0.34, 0.96] [0.78, 0.99] [0.90, 1.00] [0.78, 0.99] [0.55, 0.98] [0.91, 1.00] [0.36, 0.96]
Impulse (BW *s) FP 0.38 ± 0.05 0.38 ± 0.04 0.36 ± 0.05 0.39 ± 0.05 0.39 ± 0.04 0.38 ± 0.05 0.55 ± 0.07 0.52 ± 0.06 0.56 ± 0.07
SEM 0.02 0.01 0.02 0.02 0.01 0.01 0.02 0.02 0.02
95% CI [0.35, 0.42] [0.35, 0.41] [0.33, 0.40] [0.35, 0.42] [0.36, 0.42] [0.35, 0.42] [0.50, 0.60] [0.48, 0.56] [0.51, 0.61]
LS 0.36 ± 0.05 0.35 ± 0.03 0.34 ± 0.04 0.36 ± 0.05 0.36 ± 0.03 0.35 ± 0.04 0.55 ± 0.09 0.51 ± 0.07 0.55 ± 0.07
SEM 0.02 0.01 0.01 0.02 0.01 0.01 0.03 0.02 0.02
95% CI [0.32, 0.39] [0.33, 0.38] [0.31, 0.38] [0.32, 0.40] [0.33, 0.38] [0.32, 0.38] [0.48, 0.61] [0.46, 0.56] [0.49, 0.60]
p-value <0.01 * <0.01 * 0.05 * <0.01 * <0.01 * <0.01 * <0.01 * 0.31 <0.01 *
ICC 0.97 0.91 0.91 0.96 0.90 0.92 0.97 0.91 0.96
95% CI [0.87, 0.99] [0.66, 0.98] [0.65, 0.98] [0.85, 0.99] [0.60, 0.98] [0.67, 0.98] [0.84, 0.99] [0.65, 0.98] [0.85, 0.99]
Loading Rate (BW/s) FP 37.50 ± 11.54 50.55 ± 15.08 21.56 ± 6.01 31.67 ± 9.54 41.66 ± 10.11 19.76 ± 4.74 6.56 ± 1.32 10.05 ± 4.02 6.13 ± 1.52
SEM 3.65 5.03 1.90 3.02 3.37 1.50 0.44 1.27 0.51
95% CI [29.24, 45.75] [37.94, 63.16] [17.27, 25.86] [24.85, 38.49] [33.89, 49.44] [16.37, 23.14] [5.54, 7.58] [7.17, 12.93] [4.96, 7.31]
LS 37.807 ± 8.75 49.19 ± 8.43 26.00 ± 5.85 33.51 ± 5.71 44.90 ± 9.09 23.58 ± 5.80 9.41 ± 2.34 13.95 ± 3.37 7.70 ± 1.93
SEM 2.77 2.98 1.85 1.81 3.09 1.83 0.78 1.07 0.65
95% CI [31.54, 44.06] [42.14, 56.24] [21.81, 30.18] [29.43, 37.60] [39.98, 51.22] [19.43, 27.72] [7.61, 11.20] [11.54, 16.37] [6.21, 9.19]
p-value 0.91 0.71 <0.01 * 0.32 0.38 <0.01 * 0.52 0.16 0.01 *
ICC 0.83 0.80 0.92 0.86 0.80 0.88 0.80 0.96 0.81
95% CI [0.33, 0.96] [0.02, 0.96] [0.66, 0.98] [0.42, 0.96] [0.12, 0.96] [0.51, 0.97] [0.12, 0.96] [0.85, 0.99] [0.16, 0.96]

* Indicates a statistical difference between the force plate and loadsol® value.