Effect of Deep Slow Breathing on Pain-Related Variables in Osteoarthritis

Table 3

Heart rate variability: low frequency power, high frequency power, and sympathetic/vagal ratio (mean ± SD) for each group before and after the test and changes in LF power, HF power, and LF/HF ratios (mean ± SD) for each group.

	Pretest	Posttest
Low frequency power (ms^2)
Training	179.30 ± 562.1	9.82 ± 28.84
Control	32.08 ± 66.55	0.74 ± 0.73
High frequency power (ms^2)
Training	14.04 ± 39.76	7.02 ± 19.24
Control	7.43 ± 9.99	1.50 ± 1.87
Sympathetic/vagal ratio
Training	5.64 ± 10.03	2.13 ± 3.72
Control	2.38 ± 3.79	0.97 ± 0.69
Changes in HRV scores	LF power (ms^2)	HF power (ms^2)	LF/HF ratio
Training	−169.57 ± 566.52	−7.02 ± 45.78	−3.51 ± 6.93
Control	−31.34 ± 66.36	5.93 ± 8.95	−1.41 ± 4.07