Table S3. Correlations between myocardial indices and performance outcomes in the full sample.

Myocardial index	Peak power, W/kg	T-test time, s	Competition index	Reaction time, ms	BESS errors	FTNAT repetitions
GLS magnitude	r = 0.62s, q < 0.001	r = -0.58, q < 0.001	r = 0.60, q < 0.001	r = -0.41, q < 0.001	r = -0.44, q < 0.001	r = 0.41, q < 0.001
GWE	r = 0.57, q < 0.001	r = -0.51, q < 0.001	r = 0.55, q < 0.001	r = -0.39, q < 0.001	r = -0.36, q < 0.001	r = 0.34, q = 0.002
GWW	r = -0.40, q < 0.001	r = 0.35, q = 0.001	r = -0.38, q < 0.001	r = 0.31, q = 0.004	r = 0.33, q = 0.002	r = -0.29, q = 0.006
MPI	r = -0.32, q = 0.003	r = 0.42, q < 0.001	r = -0.31, q = 0.004	r = 0.29, q = 0.006	r = 0.39, q < 0.001	r = -0.28, q = 0.008