Exercise-Induced Changes of Multimodal Interactions Within the Autonomic Nervous Network

Autor: Solveig Vieluf; Tanuj Hasija; Rasmus Jakobsmeyer; Peter J. Schreier; Claus Reinsberger
Sprache: Englisch
Veröffentlicht: 2019
Quelle: Directory of Open Access Journals: DOAJ Articles
Online Zugang: https://www.frontiersin.org/article/10.3389/fphys.2019.00240/full
https://doaj.org/toc/1664-042X
1664-042X
doi:10.3389/fphys.2019.00240
https://doaj.org/article/d08ba29977cc4890af4f0498dcc8d779
https://doi.org/10.3389/fphys.2019.00240
https://doaj.org/article/d08ba29977cc4890af4f0498dcc8d779
Erfassungsnummer: ftdoajarticles:oai:doaj.org/article:d08ba29977cc4890af4f0498dcc8d779

Zusammenfassung

Physical exercise has been shown to modulate activity within the autonomic nervous system (ANS). Considering physical exercise as a holistic stimulus on the nervous system and specifically the ANS, uni- and multimodal analysis tools were applied to characterize centrally driven interactions and control of ANS functions. Nineteen young and physically active participants performed treadmill tests at individually determined moderate and high intensities. Continuous electrodermal activity (EDA), heart rate (HR), and skin temperature at wrist (Temp) were recorded by wireless multisensor devices (Empatica® E4, Milan, Italy) before and 30 min after exercise. Artifact-free continuous 3 min intervals were analyzed. For unimodal analysis, mean values were calculated, for bimodal and multimodal analysis canonical correlation analysis (CCA) was performed. Unimodal results indicate that physical exercise affects ANS activity. More specifically, Temp increased due to physical activity (moderate intensity: from 34.15°C to 35.34°C and high intensity: from 34.11°C to 35.09°C). HR increased more for the high (from 60.76 bpm to 79.89 bpm) than for the moderate (from 64.81 bpm to 70.83 bpm) intensity. EDA was higher for the high (pre: 8.06 μS and post: 9.37 μS) than for the moderate (pre: 4.31 μS and post: 3.91 μS) intensity. Bimodal analyses revealed high variations in correlations before exercise. The overall correlation coefficient showed varying correlations in pretest measures for all modality pairs (EDA-HR, HR-Temp, Temp-EDA at moderate: 0.831, 0.998, 0.921 and high: 0.706, 0, 0.578). After exercising at moderate intensity coefficients changed little (0.828, 0.744, 0.994), but increased substantially for all modality pairs after exercising at high intensity (0.976, 0.898, 0.926). Multimodal analysis confirmed bimodal results. Exercise-induced changes in ANS activity can be found in multiple ANS modalities as well as in their interactions. Those changes are intensity-specific: with higher intensity the interactions increase. ...