A

The evidence from controlled studies indicates that biofeedback training improves athletes’ ability to regulate respiration, heart-rate variability, skin conductance and related psychophysiological variables, and these gains translate into better sport-specific outcomes such as shooting accuracy, sprint times and overall performance ratings [Pusenjak et al., 2015, PMID 26200172; Paul et al., 2012, PMID 22461963; Blumenstein et al., 1995, PMID 7474048].