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Table 2 Comparison between the placebo and control group on velocity of displacement of the bar in bench press

From: Effects of placebo on bench throw performance of Paralympic weightlifting athletes: a pilot study

Variable   50% 1RM ES 60% 1RM ES 70% 1RM ES 80% 1RM ES
Mean velocity (m/s) Control 0.76 ± 0.08 0.36* 0.70 ± 0.07 0.19 0.61 ± 0.10 0.26 0.47 ± 0.10 0.31
Placebo 0.84 ± 0.12 0.74 ± 0.12 0.56 ± 0.08 0.41 ± 0.08
Mean velocity to peak (m/s) Control 0.79 ± 0.09 0.33 0.72 ± 0.07 0.18 0.61 ± 0.11 0.19 0.48 ± 0.10 0.31
Placebo 0.87 ± 0.13 0.76 ± 0.13 0.57 ± 0.09 0.42 ± 0.08
Mean propulsive velocity (m/s) Control 0.81 ± 0.09 0.46* 0.74 ± 0.09 0.19 0.63 ± 0.12 0.27 0.48 ± 0.10 0.36
Placebo 0.92 ± 0.12 0.79 ± 0.15 0.57 ± 0.09 0.41 ± 0.08
Peak velocity (m/s) Control 1.16 ± 0.11 0.37 1.06 ± 0.13 0.14 0.91 ± 0.19 0.27 0.72 ± 0.19 0.32
Placebo 1.27 ± 0.16 1.11 ± 0.21 0.82 ± 0.11 0.61 ± 0.12
  1. ES effect size, RM Repetition Maximum
  2. *significant difference between placebo and control (p < 0,05)