The Effect of Lavender Aromatherapy on Autonomic Nervous System in Midlife Women with Insomnia
Table 2
Comparison of HRV parameters in the 4th and 12th weeks before and after lavender fragrance stimuli in the experimental group.
Variable
Before inhalation
After inhalation
value
HR (bpm)
4th week
72.5 (65, 77)
68 (64, 72)
<0.00*
12th week
77 (73, 88)
74 (67, 82)
<0.00*
SDNN (ms)
4th week
34.25 (22.84, 45.99)
35.32 (30.07, 46.80)
0.007*
12th week
23.60 (20.39, 39.07)
34.52 (22.74, 40.95)
0.011*
RMSSD (ms)
4th week
24.58 (15.97, 36.75)
28.68 (23.27, 38.93)
0.003*
12th week
18.26 (14.52, 27.29)
23.25 (19.06, 35.33)
0.031*
TP (ms2)
4th week
804.5 (461, 1443)
887.5 (610, 1896)
0.132
12th week
497 (236, 1211)
781 (310, 1228)
0.299
VLF (ms2)
4th week
279.88 (179.63, 654.97)
418.41 (206.44, 842.06)
0.228
12th week
224.23 (106.74, 461.38)
318.36 (121.96, 489.44)
0.468
LF (ms2)
4th week
213.74 (94.89, 499.63)
284.64 (102.17, 557.60)
0.602
12th week
114.02 (53.36, 454.59)
202.22 (63.92, 344.73)
0.652
HF (ms2)
4th week
140.66 (74.88, 270.39)
183.56 (104.89, 341.60)
0.039*
12th week
102.42 (48.33, 183.01)
153.12 (95.31, 236.38)
0.036*
LFnu (%)
4th week
61.37 (39.65, 75.22)
62.17 (41.15, 75.46)
0.663
12th week
62.75 (52.63, 66.82)
50.54 (39.02, 75.26)
0.065
HFnu (%)
4th week
38.63 (24.78, 60.35)
37.83 (24.54, 58.85)
0.663
12th week
37.26 (33.18, 47.37)
49.46 (24.74, 60.98)
0.065
LFnu/HEnu (ratio)
4th week
1.59 (0.66, 3.04)
1.65 (0.70, 3.07)
0.912
12th week
1.68 (1.11, 2.01)
1.02 (0.64, 3.04)
0.134
Values are expressed as median (interquartile range). *indicates a significant difference before and after treatment using Wilcoxon signed-rank test ().