Heart Rate Variability Mainly Relates to Cognitive Executive Functions and Improves Through Exergame Training in Older Adults: A Secondary Analysis of a 6-Month Randomized Controlled Trial
Patrick Eggenberger1,2*, Simon Annaheim1, Kerstin A. Kündig1,2, René M. Rossi1, Thomas Münzer3,4 and Eling D. de Bruin2,5