Performance and cardiac evaluation before and after a 3-week training camp for 400-meter sprinters – An observational, non-randomized study حسب Michael Skalenius (6786728)

"…Furthermore, resting heart rate (-7%; p<0.01) and left ventricular systolic and diastolic volumes decreased -6% (p<0.01) and -10% (p<0.05), respectively.…"