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. 2021 Jul 15;39(3):547–554. doi: 10.5114/biolsport.2022.106160

TABLE 3.

The differences between 40% and 90%1RM for all measured variables.

40%1RM 90%1RM Mean differences Relative differences (%)
Time Under Tension (s)
Barbell Squat
Volitional tempo
0.61 ± 0.07* 1.11 ± 0.18* 0.50 81.97
Barbell Squat
Maximal tempo
0.49 ± 0.07* 0.98 ± 0.16* 0.49 100.00
Bench Press
Volitional tempo
0.47 ± 0.05* 1.43 ± 0.31* 0.96 204.26
Bench Press
Maximal Tempo
0.41 ± 0.02* 1.01 ± 0.42* 0.60 146.34

Mean Bar Velocity (m/s)
Barbell Squat
Volitional tempo
0.76 ± 0.11* 0.44 ± 0.06* 0.32 -42.11
Barbell Squat
Maximal tempo
1.05 ± 0.10* 0.54 ± 0.06* 0.51 -48.57
Bench Press
Volitional tempo
0.70 ± 0.08* 0.24 ± 0.04* 0.46 -65.71
Bench Press
Maximal Tempo
1.11 ± 0.11* 0.29 ± 0.06* 0.82 -73.87

Peak Bar Velocity (m/s)
Barbell Squat
Volitional tempo
1.26 ± 0.21* 1.02 ± 0.23* 0.24 -19.05
Barbell Squat
Maximal tempo
1.75 ± 0.22* 1.20 ± 0.12* 0.55 -31.43
Bench Press
Volitional tempo
1.06 ± 0.15* 0.38 ± 0.06* 0.68 -64.15
Bench Press
Maximal Tempo
1.59 ± 0.21* 0.45 ± 0.09* 1.14 -71.70
*

Significant differences between 40% and 90%1RM.