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. 2020 Oct 14;56(10):538. doi: 10.3390/medicina56100538

Table 2.

Rate of force development (RFD) (N·s−1), maximum isometric force (MIF) (N), fatigue index (FI) (%) and time to maximum isometric force (Time) (s) (mean ± SD, 95% CI) in the different types of warm-up.

RFD (N·m·s−1 s)
X ± DP
MIF (N)
X ± DP
FI (%)
X ± DP
Time (s)
X ± DP
(IC 95%) (IC 95%) (IC 95%) (IC 95%)
Without Warm up 4153.11 ± 1025.72
(1895.50–6410.71)
1005.07 ± 56.40 *
(880.93–1129.21)
10.33 ± 1.25
(7.58–13.08)
2504.85 ± 311.39
(1819.48–3190.22)
Traditional 2810.93 ± 470.96
(1774.36–3847.50)
965.22 ± 56.23
(841.47–1088.98)
9.16 ± 0.83
(7.34–10.98)
2406.46 ± 430.78
(1458.33–3354.59)
Stretching 2522.67 ± 417.16
(1604.51–3440.83)
895.74 ± 45.62 *
(795.33–996.15)
9.16 ± 1.03
(6.89–11.43)
2561.65 ± 419.72
(1637.86–3485.44)
p 0.476 0.005 0.940 0.999
η2p 0.136 ## 0.454 ### 0.055 # 0.006 #

* p < 0.05 (ANOVA two-way, and post hoc de Bonferroni). η2p: # low effect, ## medium effect, ### high effect. RFD: rate of force development; MIF: maximum isometric force, FI: fatigue index and time: time to maximum isometric force. * indicates difference in maximum isometric force (MIF), between without warm-up and stretching.