Effects of Yoga on Heart Rate and Heart Rate Variability Responses to Stress

Sponsor

Kaohsiung Medical University Chung-Ho Memorial Hospital (Other)

Overall Status

Completed

CT.gov ID

NCT04897230

Collaborator

(none)

Enrollment

Arms

18.9

Actual Duration (Months)

Study Details

Study Description

Brief Summary

Introduction: Yoga has been shown to reduce stress and have benefits for a number of stress-related disorders. However, the effects of an acute bout of yoga practice on cardiac autonomic response to and recovery from stress remain unclear. This study aimed to examine the effect of a single bout of yoga on heart rate (HR) and heart rate variability (HRV) response to and recovery from mental stress.

Materials and Methods: This study was conducted with a randomized, counterbalanced, crossover design. A total of 44 participants completed two sessions (yoga and video watching (VW)) in randomly assigned order. After each condition, participants underwent a Stroop task and mental arithmetic task. Electrocardiogram was measured and HR and HRV for resting, each condition, and the stress and recovery periods were analyzed.

Condition or Disease	Intervention/Treatment	Phase
Cardiovascular Reactivity to Stress	Behavioral: Hatha Yoga Behavioral: Video Watching	N/A

Study Design

Study Type:

Interventional

Actual Enrollment :

44 participants

Allocation:

Randomized

Intervention Model:

Crossover Assignment

Masking:

None (Open Label)

Primary Purpose:

Basic Science

Official Title:

The Effects of Acute Yoga Practice on Heart Rate and Heart Rate Variability Responses to Mental Stress

Actual Study Start Date :

Sep 1, 2013

Actual Primary Completion Date :

Mar 30, 2015

Actual Study Completion Date :

Mar 30, 2015

Arms and Interventions

Arm	Intervention/Treatment
Active Comparator: Hatha Yoga Condition An experienced yoga instructor led the 30 minutes yoga condition session which consisted of 5 minutes warm up, 5 minutes breathing exercises, and 20 minutes yoga poses practice. The yoga props were used according to each participant's particular body type and needs to help he/she achieve precise yoga postures safely and comfortably.	Behavioral: Hatha Yoga The yoga poses were chosen for providing a restorative session based on their purported relationship to restorative effects to best promote cardiac autonomic recovery from mental stress.
Placebo Comparator: Control Condition Participants in the control condition were watching a neutral video on a television.	Behavioral: Video Watching The video was about the history of the Earth which encompasses the development of the planet Earth from its formation to the present day.

Arm

Intervention/Treatment

Active Comparator: Hatha Yoga Condition

An experienced yoga instructor led the 30 minutes yoga condition session which consisted of 5 minutes warm up, 5 minutes breathing exercises, and 20 minutes yoga poses practice. The yoga props were used according to each participant's particular body type and needs to help he/she achieve precise yoga postures safely and comfortably.

Behavioral: Hatha Yoga

The yoga poses were chosen for providing a restorative session based on their purported relationship to restorative effects to best promote cardiac autonomic recovery from mental stress.

Placebo Comparator: Control Condition

Participants in the control condition were watching a neutral video on a television.

Behavioral: Video Watching

The video was about the history of the Earth which encompasses the development of the planet Earth from its formation to the present day.

Outcome Measures

Primary Outcome Measures

Heart Rate [up to 5 minutes]
Heart rate was derived from continuous heart rate recording, at a sampling rate of 1024 Hz, using an electrocardiogram (ECG) system
Heart Rate Variability [up to 5 minutes]
Heart rate variability was derived from continuous heart rate recording, at a sampling rate of 1024 Hz, using an electrocardiogram (ECG) system

Eligibility Criteria

Criteria

Ages Eligible for Study:

20 Years to 40 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Inclusion Criteria:

aged between 20 and 40 years old
a body mass index (BMI) between 18.5 and 30
being sedentary

Exclusion Criteria:

Electrocardiogram (ECG) abnormalities (e.g., arrhythmia, atrioventricular blocks)
history of cardiovascular disease, diabetes, or renal disease
contraindications for exercise (e.g., orthopedic problems)
involvement in any yoga practice
being pregnant or nursing
use of tobacco products or medications that may affect cardiovascular function

Contacts and Locations

Locations

No locations specified.

Sponsors and Collaborators

Kaohsiung Medical University Chung-Ho Memorial Hospital

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

Responsible Party:

Kaohsiung Medical University Chung-Ho Memorial Hospital

ClinicalTrials.gov Identifier:

NCT04897230

Other Study ID Numbers:

KMUH-IRB-20120375

First Posted:

May 21, 2021

Last Update Posted:

May 21, 2021

Last Verified:

May 1, 2021

Individual Participant Data (IPD) Sharing Statement:

Plan to Share IPD:

Studies a U.S. FDA-regulated Drug Product:

Studies a U.S. FDA-regulated Device Product:

Keywords provided by Kaohsiung Medical University Chung-Ho Memorial Hospital

yoga, mental stress, cardiac autonomic function, stress response

Study Results

No Results Posted as of May 21, 2021