Impact of training specificity on exercise-induced cardiac troponin elevation in professional athletes: A pilot study

Table 1 Baseline characteristics of the 9 participants included in the study

Characteristics	Number/ Ratio
n	9
Male, %	9 (100)
Caucasian, %	9 (100)
Age, yr	24 (23-25)
Height, cm	184 (183-188)
Body weight, kg	82 (75-88)
BMI, kg/m2	23.8 (23.5-24.8)
Training volume, h/wk	12 (12-12)
Resting HR, bpm	52 (49-58)
SBP, mmHg	120 (120-125)
DBP, mmHg	70 (70-80)

Values are presented as numbers (%) or median (interquartile range). BMI: Body mass index; HR: Heart rate; bpm: Beats per minute; SBP: Systolic blood pressure; DBP: Diastolic blood pressure.

Table 2 Exercise test variables in the cycle ergometer test compared to the Yo-Yo IR2 test

	Cycle ergometer test	Yo-Yo IR2 test	P value
Performance time, min	10.1 (9.2-11.4)	7.4 (6.5-8.3)	0.018
Average HR, bpm	159 (151-161)	171 (169-176)	0.008
Peak HR, bpm	190 (181-191)	196 (190-197)	0.021

Values are presented as median (interquartile range). P < 0.05 calculated by the Wilcoxon rank-sum test is considered significant. HR: Heart rate; bpm: Beats per minute.

Table 3 Comparison of plasma levels of high-sensitivity cTn after the cycle ergometer test and Yo-Yo IR2 test

	Cycle ergometer test	Yo-Yo IR2 test	P value
Baseline	5.4 (5.2-7.7)	5.2 (4.8-7.1)	0.575
0 h	5.8 (5.5-8.3)	6.6 (5.9-9.3)	0.139
2 h	7.1 (6.1-8.5)	9.5 (8.2-14.7)	0.028
6 h	7.8 (6.2-9.3)	10.6 (9.1-15.5)	0.038
24 h	5.8 (5.2-7.6)	5.7 (4.7-7.2)	0.343

Values are presented as the median (interquartile range). P < 0.05 calculated by the Wilcoxon rank-sum test was considered significant.