Research Article
Effects of Tibetan Music on Neuroendocrine and Autonomic Functions in Patients Waiting for Surgery: A Randomized, Controlled Study
Figure 6
Heart rate variability. (a) Normalized low frequency (LFnu), (b) normalized high frequency (HFnu), and (c) LF/HF ratio in the music group (M group) and control group (C group) at each time point. Data are presented as mean ± SD. ^, +, and .
(a) |
(b) |
(c) |