Effects of Posteroanterior Thoracic Mobilization on Heart Rate Variability and Pain in Women with Fibromyalgia

Table 2

Pain assessment and linear and nonlinear indices of heart rate variability before and after posteroanterior glide mobilization.

	Fibromyalgia		Control		𝑃 values
	Before	After	Before	After	D	M	I
Pain score	6±1	4±1	—	—	—	—	—
HRV indices
HR, bpm	81±10	77±9	73±9	69±7	ns	ns	ns
iRR, ms	733.5±99.6	749.3±74.6	823.9±99.5	875.6±92.6	ns	<0.05	ns
rMSSD, ms	12.9±6.7	26.3±13.6^†	34.7±19.0^‡	37.8±18.7	<0.05	<0.05	ns
SDNN, ms	22.9±13.7	26.3±13.6	40.8±20.0	44.5±15.2	ns	ns	ns
LF, nu	68.6±14.5	51.9±16.9	47.5±8.3^‡	45.7±13.9	<0.05	ns	ns
HF, nu	31.4±14.5	48.1±16.9	52.4±8.3^‡	54.2±13.9	<0.05	ns	ns
LF/HF	3.2±3.0	1.4±1.4	0.5±0.3	0.9±0.6	ns	ns	ns
SD1, ms	9.19±4.7	11.0±5.3^†	24.2±14.0^‡	26.7±13.2	<0.05	<0.05	ns
SD2, ms	31.0±18.9	35.3±19.1	52.3±26.3	56.9±17.9	ns	ns	ns
DFA𝛼1	1.2±0.1	1.1±0.1	1.0±0.1^‡	0.95±0.2	<0.05	ns	<0.05
DFA𝛼2	1.0±0.1	0.9±0.1	0.71±0.2^‡	0.93±0.2	<0.05	ns	<0.05

Data are presented as mean ± standard deviation. Two-way ANOVA test with Bonferroni post-hoc test. D: disease effect; M: mobilization effect; I: interaction; ns: nonsignificant. ^†𝑃<0.05: before versus after posteroanterior glide technique; ^‡𝑃<0.05: fibromyalgia versus control.