The acute effects of caffeine intake on time under tension and power generated during the bench press movement

Table 2 Differences in the 7 considered variables between the group that ingested caffeine (G_CAF) and the placebo group (G_CON)

Variables	D	F	P
Maximal concentric power [W]	0.245	3.52	0.068
Maximal concentric velocity [m/s]	0.231	3.48	0.070
Mean concentric power [W]	0.210	3.04	0.089
Mean concentric velocity [m/s]	0.221	3.60	0.065
Number of repetitions [n]	0.132	2.15	0.151
Time under tension [s]	0.903	11.49	0.002
Mean eccentric velocity [m/s]	0.912	11.64	0.002

Notes: d - effect size; p - statistical significance; F – value of analysis of variance function

ISSN: 1550-2783