Skip to main content

Table 2 Differences, RMSE and correlations of the velocities of the bar Vmean, Vmax and t Vmax during ballistic squats

From: Validity and reliability of simple measurement device to assess the velocity of the barbell during squats

  T-force Tendo GymAware Myotest
Δ Vmean
 Minimum − 0.265 − 0.521 − 0.460 − 0.739
 Maximum 0.433 0.256 0.220 0.527
 Average 0.102 − 0.083 − 0.091 0.149
 RMSE 0.167 0.157 0.160 0.233
r Vmean
 Correlation 0.724* 0.770* 0.783* 0.610*
Δ Vmax
 Minimum − 0.268 − 0.248 − 0.304 − 0.228
 Maximum 0.694 0.787 0.795 1.124
 Average 0.150 0.217 0.187 0.278
 RMSE 0.263 0.315 0.304 0.418
r Vmax
 Correlation 0.810* 0.860* 0.852* 0.552*
Δ t Vmax
 Minimum − 0.212 − 0.021 − 0.016 − 0.205
 Maximum 0.221 0.285 0.237 0.040
 Average − 0.007 0.046 0.024 − 0.034
 RMSE 0.045 0.064 0.046 0.054
r t Vmax
 Correlation 0.655* 0.604* 0.701* 0.700*
  1. The units are m/s for the velocities and s for time
  2. * Correlation is significant at a level of p < 0.01