Effect of maximum exercise on left ventricular deformation and its correlation with cardiopulmonary exercise capacity in competitive athletes

Table 4 Correlations between left ventricular deformation and cardiopulmonary exercise capacity

Mean values ± SD	Handball players (Semi-recumbent ergometer)		Football players (Treadmill)
Mean values ± SD	Pearson’s R	P value	Pearson’s R	P value
VO_2max vs. GLS at rest	0.047	0.880	0.219	0.367
VO_2max vs. GLS after CPET	− 0.067	0.828	− 0.041	0.869
VO_2max vs. ΔGLS	− 0.136	0.657	− 0.325	0.175
Relative VO_2max vs. GLS at rest	− 0.019	0.952	0.008	0.974
Relative VO_2max vs. GLS after CPET	0.112	0.716	0.094	0.701
Relative VO_2max vs. ΔGLS	0.159	0.605	0.093	0.706
VO_2max vs. GWI at rest	− 0.428	0.144	0.031	0.901
VO_2max vs. GWI after CPET	0.631	0.021*	0.336	0.160
VO_2max vs. ΔGWI	0.762	0.002*	0.346	0.147
Relative VO_2max vs. GWI at rest	− 0.415	0.159	− 0.099	0.688
Relative VO_2max vs. GWI after CPET	0.502	0.080	0.459	0.048*
Relative VO_2max vs. ΔGWI	0.671	0.012*	0.592	0.008*

^*Statistically significant (p < 0.05). SD: standard deviation; VO_2max: maximum oxygen uptake; GLS: global longitudinal strain; GWI: global myocardial work index; CPET: cardiopulmonary exercise testing; Δ: change before and after CPET

ISSN: 2055-0464