The Immediate Effects of Lavender Aromatherapy Massage versus Massage in Work Stress, Burnout, and HRV Parameters: A Randomized Controlled Trial

Table 3

Comparisons of HRV parameters between groups.

Variables	Control group						Experimental group						Comparison between groups
	Pretest		Posttest		Paired t		Pretest		Posttest		Paired t		Pretest		Posttest
	Mean	SD	Mean	SD			Mean	SD	Mean	SD			t		t
Time domain
HRT	81.00	9.65	75.98	9.49	5.65	<0.001	83.72	10.41	75.92	7.99	5.854	<0.001	−1.421	0.158	0.034	0.973
SDNN	30.58	16.10	38.97	17.84	−4.99	<0.001	30.34	11.07	44.65	19.94	−6.105	<0.001	0.092	0.927	−1.577	0.118
RMSSD	22.22	17.34	26.64	15.55	−2.44	0.018	21.47	12.19	30.67	15.83	−4.768	<0.001	0.260	0.795	−1.349	0.180
PSI	107.99	146.97	62.33	62.37	2.54	0.014	96.10	85.95	44.35	32.29	4.904	<0.001	0.513	0.609	1.878	0.063
Frequency domain
TP	890.20	1475.43	1028.42	818.82	−0.67	0.506	768.62	672.02	1769.61	1655.66	−4.739	<0.001	0.549	0.584	−3.008	0.003
VLF	461.67	813.49	698.39	759.58	−2.22	0.031	397.47	408.34	990.91	1173.90	−3.726	<0.001	0.517	0.606	−1.562	0.121
LF	236.97	395.90	281.64	442.77	−1.42	0.161	228.30	205.07	538.99	683.76	−3.514	0.001	0.143	0.887	−2.359	0.020
HF	177.70	286.58	244.08	327.72	−2.44	0.018	141.43	152.37	266.60	297.31	−3.036	0.004	0.820	0.414	−0.376	0.707
LF/HF	1.57	1.08	1.83	1.81	−0.97	0.339	2.79	4.43	2.64	2.97	0.212	0.833	−2.012	0.047	−1.736	0.085