@misc{10481/66185,
year = {2020},
url = {http://hdl.handle.net/10481/66185},
abstract = {Background: Heart rate variability (HRV) is a psycho-physiological phenomenon
with broad health implications. Different data analysis methods have been used to
assess the autonomic nervous system activity, but the validation of new indexes that
accurately describe its balance through non-invasive methods (i.e., HRV analysis) is
of clinical interest. This study aimed: (i) to evaluate the association of the Stress Score
(SS) and the Sympathetic/Parasympathetic Ratio (S/PS) with time domain and
frequency domain analysis of HRV, and (ii) to set reference values of SS and S/PS in
sedentary healthy adults.
Methods: A total of 156 sedentary healthy adults (38.4 ± 15.57 years old, 81 women),
aged were involved in this study. HRV was measured for 15 min in a supine position
at rest. SS and S/PS were calculated from the non-linear HRV analyses based on
Poincare Plot.
Results: Stress Score showed a non-linear negative power-law relationship with
SDNN (β = −0.969; R2 = 0.963; P < 0.001), RMSSD (β = −0.867; R2 = 0.722;
P < 0.001), high frequency (β = −0.834; R2 = 0.752; P =< 0.001), low frequency
(β = −0.627; R2 = 0.330; P < 0.001), SD1 (β = −0.867; R2 = 0.722; P < 0.001) and SD2
(β = −1.000; R2 > 0.999; P < 0.001). There was observed a negative cubic relationship
between SS with PNN50 (β = −1.972; R2 = 0.644; P < 0.001). A linear regression
model was conducted between SS with Ratio Low/High Frequency (β = 0.026;
R2 < 0.001; P = 0.750). Non-linear power-law regression models were built between
S/PS and SDNN (β = −0.990; R2 = 0.981; P < 0.001), RMSSD (β = −0.973; R2 = 0.939;
P < 0.001), high frequency (β = −0.928; R2 = 0.970; P < 0.001), low frequency
(β = −2.344; R2 = 0.557; P < 0.001), SD1 (β = −0.973; R2 = 0.939; P < 0.001) and SD2
(β = −0.611; R2 = 0.908; P < 0.001). A non-linear negative regression model was built
between S/PS and PNN50 (β = −3.412; R2 = 0.868; P < 0.001). A linear regression
model was conducted between S/PS and SD2/SD1 (β = 0.075; R2 = 0.006; P < 0.001).
Conclusion: Our results support the use of SS as a sympathetic activity marker, and
S/PS as an indicator of the sympathetic and parasympathetic activity of the
autonomic nervous system in sedentary healthy adults.},
organization = {Spanish Government

FPU14/04172
FPU15/03960},
organization = {University of Granada, Plan Propio de Investigacion 2016, Excellence actions: Units of Excellence},
organization = {Unit of Excellence on Exercise and Health (UCEES)},
publisher = {PEERJ INC},
keywords = {HRV},
keywords = {Stress score},
keywords = {Sympathetic/parasympathetic ratio},
keywords = {Kubios},
keywords = {Poincare plot},
title = {Assessment of autonomous nerve system through non-linear heart rate variability outcomes in sedentary healthy adults},
doi = {10.7717/peerj.10178},
author = {Navarro Lomas, Ginés and De la O Puerta, Alejandro and Jurado Fasoli, Lucas and Castillo, Manuel J. and Femia Marzo, Pedro Jesús and Amaro Gahete, Francisco José},
}