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The Effect of Deep Breathing and Transcutaneus Electrical Nerve Stimulation on Heart Rate Variability

NCT05157334 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 180

Last updated 2021-12-15

No results posted yet for this study

Summary

This interventional study aims to investigate the effect of deep breathing (DB) and transcutaneous electrical vagus nerve stimulation (tVNS) on heart rate variability (HRV) in healthy participants and patients with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). HRV is used as a surrogate measure of vagal nerve tone.

The study consists of three sub-projects:

Sub-project 1: To compare the effect of one session of DB and one session of non-invasive auricular tVNS on vagal nerve tone measured by HRV in healthy participants and in patients with RA and SLE. The hypotheses is that DB has a similar effect on HRV as non-invasive electrical tVNS.

Sub-project 2: A dose-response study in healthy participants comparing the effect of 5, 15 and 30 minutes of DB on HRV. The hypothesis was that HRV increases as a function of the number of minutes the DB is performed in healthy participants.

Sub-project 3: To investigate the effect of the optimal dose found in sub-project 2 in patients with RA and SLE measured by HRV, and to investigate its reproducibility by doing it twice.The hypothesis was that HRV increases after DB in patients with RA and SLE, and the effect is reproducible.

In all three sub-projects the washout period will be investigated by measuring HRV three times after the intervention. We hypothesise that the effect of DB and tVNS on HRV decreases over time.

Conditions

Interventions

DEVICE

Non-invasive auricular electrical transcutaneous vagus nerve stimulation

A NEMOS ® stimulator (Cerbomed, Erlangen, Germany) is used for transcutaneous auricular vagus nerve stimulation. This is a handheld battery driven stimulator which stimulates conca in the outer ear. It stimulates in a serie of small electrical impulses with a pulse width at 250 us and a frequency at 25 Hz for 30 minutes in a cycle for 30 seconds "on" and 30 seconds "off" to avoid habituation. It is previously indicated that a stimulation intensity at 0,5 mA, 1 mA or 1,5 mA does not cause a significant chance in HRV, thus 0,5 mA is used in this study.

OTHER

Deep breathing

The participant is first verbally introduced to the breathing exercises, and then to the visually cue (animation), which the participant have to follow throughout the session.

Sponsors & Collaborators

  • Aalborg University

    collaborator OTHER

  • Aalborg University Hospital

    lead OTHER

Principal Investigators

  • Salome Kristensen, MD, PhD · Aalborg University Hospital

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-09-01
Primary Completion
2022-09-30
Completion
2022-09-30

Countries

  • Denmark

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05157334 on ClinicalTrials.gov