. 2021 Nov 18;12:763711. doi: 10.3389/fphys.2021.763711

TABLE 2.

Correlations between outcome variables of FV relationship and performance measures.

		Approach jump	T-test	505 left	505 right	CoDD left	CoDD right	5 m sprint	10 m sprint	15 m sprint	25 m sprint
FV jump	F₀	0.45^**	–0.18	–0.15	–0.06	–0.12	–0.02	–0.03	–0.05	–0.03	–0.16
	V₀	0.09	–0.02	0.19	0.18	0.20	0.16	–0.08	–0.02	0.07	0.01
	P_max	0.02	–0.09	0.01	0.18	0.05	0.18	–0.14	–0.08	0.04	–0.10
	FV slope	−0.18	–0.06	0.09	0.08	0.11	0.09	–0.05	–0.04	0.01	0.01
	Imbalance 90°	0.16	–0.10	–0.21	–0.21	–0.22	–0.18	0.06	0.02	–0.07	–0.07
FV sprint	F₀	0.35^*	−0.42^**	–0.21	0.04	−0.35^*	0.54^**	−0.89^**	−0.78^**	−0.49^**	−0.48^**
	V₀	0.13	–0.08	–0.16	−024	–0.15	–0.21	0.26	–0.01	−0.33^*	−0.43^**
	P_max	0.53^**	−0.58^**	−0.38^*	–0.19	0.23	0.38^*	−075^**	−0.86^**	−0.89^*	−0.93^**
	FV slope	−112	0.21	0.02	–0.18	−0.30^*	−0.45^**	0.66^**	0.49^**	0.06	0.05
	RF_max	0.51^**	−0.52^**	−0.32^*	–0.10	0.32^*	0.48^*	−0.93^**	−0.91^**	−0.80^**	−0.76^**
	DRF	−0.08	0.19	0.012	–0.18	–0.29	−0.44^*	0.63^**	0.43^**	0.02	0.01
	V_opt	0.13	–0.08	–0.16	–0.24	–0.15	0.21	–0.01	–0.01	–0.33	−0.43^**
	Maximal speed	0.27	–0.19	–0.25	–0.28	–0.09	–0.11	–0.21	–0.21	−0.56^**	−0.61^**

*p < 0.05; **p < 0.01; CoDD, change of direction deficit; F0, maximal theoretical force; V₀, maximal theoretical velocity; P_max, maximal power; FV, force-velocity relationship; FV_opt, optimal slope of the force-velocity relationship; FV Imbalance, deviation from the optimal FV relationship for power production in the vertical direction; RF_max, ratio between vertical and horizontal ground reaction force; DRF, decrease of RF_max.