Heart Rate Variability and Obesity Indices: Emphasis on the Response to Noise and Standing

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Figure 1.
HRV changes in standing and noise according to percent fat (after adjusting for age, gender, and heart rate).

Table 1.

Characteristics of Participants (N = 41)

Table 2.

Participant’s Characteristics and Heart Rate Variability at Rest (N = 41)

	SDNN	RMSSD	LF	HF	LF/HF
Age	−0.42^†	−0.53^†	−0.54^†	−0.46^†	−0.09
Sex
Male	3.73 (±0.43)	3.40 (±0.65)	5.78 (±1.00)	5.20 (±1.27)	0.58 (±0.82)
Female	3.57 (±0.42)	3.16 (±0.60)	4.95 (±1.21)^*	4.94 (±1.37)	0.00 (±1.12)
Heart rate	−0.44^†	−0.62^†	−0.39^†	−0.53^†	0.31^*

Table 3.

Obesity Indices and Heart Rate Variability at Rest (N = 41)

	SDNN^‡	RMSSD	LF	HF	LF/HF
Fat mass	−0.28	−0.33^*	−0.34^*	−0.27	−0.08
Fat content (%)	−0.32^*	−0.35^*	−0.43^†	−0.28	−0.19
Waist/Hip	−0.30	−0.38^*	−0.33^*	−0.30	−0.05
BMI	−0.11	−0.20	−0.15	−0.10	−0.10

* P < .05
† P < .01
‡ SDNN, standard deviation of NN interval; RMSSD, root mean square of successive differences of NN intervals; LF, Low Frequency; HF, High Frequency; BMI, body mass index.