The Physical Effects of Aromatherapy in Alleviating Work-Related Stress on Elementary School Teachers in Taiwan

Table 9

The HRV one-way ANOVA results of the BMI subgroups with a heavy workload before and after natural bergamot essential oil treatment for all participants.

Indicators	BMI > 40 (𝑛=9)				21 ≤ BMI ≤ 24 (𝑛=20)
	Before	After	F	P	Before	After	F	P
LF (ms^2)	9.40 ± 1.30	9.33 ± 1.13	0.05	0.817	9.80 ± 1.06	9.02 ± 1.13	14.93	0.000**
HF (ms^2)	8.88 ± 1.93	8.96 ± 1.48	0.08	0.774	9.04 ± 1.43	9.40 ± 1.16	2.18	0.143
LF/HF (nu)	0.58 ± 0.93	0.37 ± 0.91	0.71	0.402	0.76 ± 1.24	−0.37 ± 1.20	25.60	0.000**
LF% (nu)	62.4 ± 19.1	58. 6 ± 20.1	0.50	0.481	64.2 ± 23.7	42.3 ± 24.1	25.20	0.000**
HF% (nu)	38.7 ± 19.6	42.4 ± 20.3	0.45	0.507	36.4 ± 23.7	58.4 ± 23.8	25.54	0.000**
RRI (ms)	768 ± 153	802 ± 152	0.64	0.426	773 ± 93.0	772 ± 82.9	0.00	0.989

 *𝑃<0.05, **𝑃<0.01.