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. 2020 Jun 30;8(7):94. doi: 10.3390/sports8070094

Table 4.

Least products regression for four devices in the power clean in comparison to 3D motion capture.

Load (%) R2 Slope (95% CI) Intercept (95% CI)
MV PV MV PV MV PV
Gymaware
40 0.93 0.91 1.165 (0.913, 1.417) 1.067 (0.787, 1.348) −0.254 (−0.598, 0.090) −0.172 (−0.841, 0.498)
50 0.95 0.93 0.944 (0.768, 1.120) 1.042 (0.806, 1.279) 0.042 (−0.192, 0.277) −0.110 (−0.660, 0.441)
60 0.95 0.95 0.900 (0.731, 1.068) 0.974 (0.798, 1.150) 0.096 (−0.119, 0.312) 0.044 (−0.347, 0.435)
70 0.78 0.95 0.788 (0.443, 1.133) 1.061 (0.869, 1.253) 0.235 (−0.180, 0.650) −0.133 (−0.545, 0.280)
80 0.86 0.91 0.831 (0.553, 1.110) 1.058 (0.801, 1.314) 0.167 (−0.148, 0.482) −0.119 (−0.641, 0.403)
90 0.42 0.86 0.553 (0.023, 1.082) 0.949 (0.641, 1.257) 0.463 (−0.087, 1.014) 0.110 (−0.480, 0.700)
100 0.64 0.86 0.848 (0.334, 1.361) 0.879 (0.589, 1.170) 0.140 (−0.358, 0.368) 0.243 (−0.275, 0.762)
Full 0.94 0.96 0.956 (0.902, 1.009) 0.967 (0.918, 1.017) 0.032 (−0.030, 0.94) 0.069 (−0.036, 0.174)
PUSH Body
40 0.38 0.27 0.713 (−0.021, 1.448) 0.655 (−0.229, 1.540) 0.431 (−0.498, 1.360) 1.213 (−0.351, 2.777)
50 0.50 0.43 0.485 (0.088, 0.881) † 0.663 (0.041, 1.285) 0.702 (0.214, 1.191) * 1.173 (0.102, 2.244) *
60 0.50 0.24 0.529 (0.103, 0.955) † 0.629 (−0.279, 1.537) 0.625 (0.123, 1.127) * 1.164 (−0.332, 2.661)
70 0.66 0.43 0.407 (0.167, 0.647) † 0.641 (0.043, 1.239) 0.703 (0.461, 0.999) * 1.149 (0.212, 2.086) *
80 0.54 0.27 0.274 (0.067, 0.481) † 0.426 (−0.140, 0.992) † 0.823 (0.607, 1.039) * 1.414 (0.589, 2.239) *
90 0.61 0.60 0.341 (0.118, 0.565) † 0.609 (0.201, 1.017) 0.719 (0.508, 0.930) * 1.126 (0.589, 1.663) *
100 0.34 0.66 0.327 (−0.048, 0.702) † 0.803 (0.329, 1.277) 0.677 (0.350, 1.005) * 0.833 (0.254, 1.412) *
Full 0.72 0.65 0.694 (0.591, 0.797) † 0.808 (0.664, 0.951) † 0.412 (0.298, 0.525) * 0.884 (0.663, 1.105) *
PUSH Bar
40 0.62 0.59 0.923 (0.334, 1.512) 0.515 (0.166, 0.863) † 0.302 (−0.357, 0.961) 1.329 (0.617, 2.042)
50 0.54 0.11 0.502 (0.121, 0.882) † 0.256 (−0.331, 0.843) † 0.755 (0.342, 1.168) 1.807 (0.652, 2.961)
60 0.50 0.68 0.662 (0.126, 1.119) 1.070 (0.478, 1.662) 0.568 (0.017, 1.119) 0.216 (−0.883, 1.316)
70 0.24 0.08 0.227 (−0.102, 0.556) † 0.140 (−0.256, 0.535) † 0.951 (0.611, 1.291) 1.889 (1.148, 2.629)
80 0.35 0.06 0.242 (−0.026, 0.510) † 0.128 (−0.281, 0.537) † 0.872 (0.610, 1.134) 1.808 (1.089, 2.527)
90 0.41 0.26 0.395 (0.010, 0.780) † 0.391 (−0.144, 0.926) † 0.703 (0376, 1.031) 1.349 (0.562, 2.137)
100 0.23 0.60 0.286 (−0.138, 0.710) † 0.579 (0.197, 0.961) † 0.725 (0.372, 1.077) 0.966 (0.407, 1.525)
Full 0.62 0.48 0.765 (0.621, 0.910) † 0.536 (0.400, 0.672) † 0.414 (0.270, 0.558) 1.169 (0.925, 1.412)
Bar Sensei
40 0.82 0.47 0.761 (0.478, 1.045) 0.591 (0.079, 1.103) 0.218 (−0.198, 0.634) 0.753 (−0.650, 2.156)
50 0.82 0.22 0.621 (0.386, 0.856) † 0.428 (−0.222, 1.077) 0.439 (0.113, 0.765) * 1.212 (−0.455, 2.879)
60 0.73 0.61 0.520 (0.262, 0.777) † 0.623 (0.218, 1.028) 0.545 (0.197, 0.894) * 0.706 (−0.269, 1.681)
70 0.04 0.50 0.081 (−0.243, 0.405) † 0.502 (0.095, 0.910) † 1.085 (0.693, 1.478) * 0.990 (0.047, 1.934) *
80 0.07 0.69 0.110 (−0.198, 0.417) † 0.582 (0.267, 0.897) † 0.985 (0.645, 1.326) * 0.781 (0.102, 1.460) *
90 0.18 0.84 0.213 (−0.151, 0.577) † 0.678 (0.442, 0.913) † 0.821 (0.449, 1.193) * 0.592 (0.128, 1.055) *
100 0.02 0.57 −0.071 (−0.460, 0.318) † 0.507 (0.145, 0.869) † 1.029 (0.657, 1.400) * 0.866 (0.190, 1.542) *
Full 0.73 0.74 0.569 (0.486, 0.652) † 0.608 (0.522, 0.693) † 0.479 (0.377, 0.580) * 0.726 (0.528, 0.924) *

% percentage of one repetition maximum; CI, confidence intervals; MV, mean velocity; PV, peak velocity. If the 95% confidence interval for the intercept does not include 0, then fixed bias is present (*); if the 95% confidence interval for the slope does not include 1, then proportional bias is present (†).