Table 2.

Countermovement vertical jump force-time metrics ($\overline{x}$ ± SD) and comparison statistics between starters and non-starters.

Variable [unit]	Starters	Non-starters	p-value	Effect size
Eccentric phase
Braking phase duration [s]	0.293 ± 0.057	0.297 ± 0.066	0.884	0.064
Eccentric braking impulse [N·s]	66.1 ± 13.9	57.9 ± 16.5	0.111	0.531
Eccentric duration [s]	0.508 ± 0.095	0.495 ± 0.071	0.696	0.158
Eccentric peak velocity [m·s−1]	1.25 ± 0.20	1.17 ± 0.28	0.357	0.321
Eccentric peak force [N]	2,154.1 ± 352.9	2,128.9 ± 374.1	0.871	0.069
Eccentric mean force [N]	956.0 ± 79.1	914.2 ± 77.2	0.132	0.535
Eccentric peak power [W]	1,783.8 ± 580.3	1,514.7 ± 552.8	0.270	0.476
Eccentric mean power [W]	577.9 ± 113.9	517.5 ± 117.5	0.228	0.520
Concentric phase
Concentric duration [s]	0.247 ± 0.044	0.265 ± 0.025	0.700	0.522
Concentric impulse [N·s]	265.8 ± 25.5	257.1 ± 23.5	0.411	0.357
Concentric peak velocity [m·s−1]	2.86 ± 0.26	2.91 ± 0.14	0.646	0.249
Concentric peak force [N]	2,573.6 ± 188.9	2,493.8 ± 423.5	0.586	0.232
Concentric mean force [N]	2,004.9 ± 141.5	1,972.6 ± 262.8	0.730	0.147
Concentric peak power [W]	5,669.0 ± 1,011.3	5,401.5 ± 702.1	0.462	0.315
Concentric mean power [W]	2,954.8 ± 297.5	2,979.2 ± 447.3	0.883	0.063
Other
Contraction time [s]	0.751 ± 0.102	0.742 ± 0.103	0.649	0.088
Jump height [cm]	38.8 ± 7.4	40.0 ± 4.2	0.615	0.207
RSI-modified [ratio]	0.525 ± 0.080	0.559 ± 0.088	0.347	0.402
Countermovement depth [cm]	29.9 ± 4.1	28.8 ± 6.9	0.637	0.187

RSI, reactive strength index.