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Completed

NCT Number: NCT05523414

The Effect of SKY Breath Meditation on Health and Well-being

The goal of this pilot SKY (Sudarshan Kriya Yoga) Breath Meditation study is to establish feasibility and acceptability of the intervention; and investigate preliminary effectiveness of the intervention at the DNA methylation, RNA and protein levels in blood samples collected from participants before and after the 8 week SKY intervention. Primary outcomes also include preliminary effectiveness at the physiological level using a wearable device used for continuous monitoring. Secondary outcome measures include behavioral inventories.

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Key information

About this study

The present study will recruit up to 60 participants in the SKY intervention and up to 60 participants in the control group. Recruitment is expected to take up to a year. After providing informed consent, participants will be randomly assigned to the SKY intervention group, or a waitlist control group. Interventions will be performed in-person in San Diego.

Prior to interventions, each participant will be asked to fill out behavioral questionnaires containing surveys and standardized cognitive measurements. Participants will be also asked to provide blood samples for biological assays (epigenetics, transcriptomics and proteomics). All participants will be scheduled for the questionnaire data collection and specimen collection up to two weeks preceding the start of either intervention. Participants will be asked to wear a Garmin vivoSmart5 smartwatch to collect physiological measures.

The SKY intervention will be administered in-person over three sessions over three consecutive days. All participants (SKY and control) will be asked to provide a second blood sample at the end of the third session of the SKY intervention. SKY participants will then engage in a remotely administered follow-up over up to eight weeks' time with the option to attend daily remotely-led breathwork sessions for 30 minutes. Participants will be asked to log daily practice engagement using online surveys through the eight-week follow-up period. Reminders will be provided to the participant intermittently during this time. During the period of eight weeks, the participants will return for 1-hour in-person follow-up SKY sessions once a week. They will be required to attend at least 75% of these weekly sessions. After 8 weeks of follow up, participants will provide a third sample of blood, and perform a post-intervention questionnaire.

Control participants will also have a similar schedule of data and biological sample collection as the SKY group. Waitlist controls will be provided the opportunity to attend the SKY retreat free of charge at the conclusion of the follow up period.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy volunteers over 21 years of age who are willing to meet the standards of the study.
  • Minimum 5th grade equivalent competency in English
  • Agree to complete all follow up sessions per week of SKY Breath practice.

Exclusion criteria

  • Diagnosis of any major medical condition including, but not limited to: dementia, severe hypertension, cancer, diabetes, rheumatoid arthritis, asthma or respiratory illnesses, history of seizure disorder, Crohn's disease, lupus, colitis, dermatitis, fibromyalgia, HIV, hepatitis B or C.
  • Diagnosis of any psychiatric condition including, but not limited to: severe clinical depression, bipolar disorder, schizophrenia/schizoaffective disorder, suicidal ideation, ADHD
  • Recent history of major psychotic episode within the last 12 months
  • Recent history of consistent substance dependence or abuse either by history or self-report within the last 3 months
  • Major surgery within last 12 weeks
  • On hormone-replacement therapy
  • Taking lithium or lithium-based medication
  • Currently pregnant/breastfeeding or actively trying to become pregnant
  • BMI greater than 35
  • Exhibiting symptoms like prolonged cognitive fog or difficulty breathing.
  • Smokes any tobacco products (including cigarettes, vapes, hookah)
  • Heavy alcohol drinker (per CDC definition, 8 or more drinks per week for women, 15 or more drinks per week for men)
  • Concurrently participating in another pilot study/clinical trial of a mind/body intervention
  • Regularly practices (3+ times a week) a formal meditation or breath-based technique

Treatment and study plan

SKY

Behavioral

The SKY intervention will be administered in-person over three sessions spread over three consecutive days by qualified instructors. Participants will then be followed up over eight weeks' time, where they will be given the option to attend daily 35 minute breathwork sessions, again, guided by experienced instructors. Participants will be required to log whether or not they practiced for each day in the eight-week period. They will also receive intermittent reminders about their daily practice during the 8-week follow-up period.

Other names: Sudarshan Kriya Yoga, SKY Breath Meditation

Primary outcomes

  1. Recruitment rate

    Time frame: Up to 1 year

    Descriptive statistics will be used to compute the proportion of screen-eligible participants enrolled by consent. Proportions will be computed, along with 95% confidence intervals, to indicate the precision of the point estimate.

  2. Refusal rate

    Time frame: Up to 1 year

    Descriptive statistics will be used to compute the proportion of screen-eligible individuals who refused to participate. Proportions will be computed, along with 95% confidence intervals, to indicate the precision of the point estimate.

  3. Retention rate

    Time frame: Week to week during 8 weeks

    Among the participants who originally attended the 3-day workshop, descriptive statistics will be used to compute proportion of participants that complete all 8 SKY follow-up study visits. Proportions will be computed, along with 95% confidence intervals, to indicate the precision of the point estimate.

  4. Adherence rate

    Time frame: 8 weeks during intervention period

    Descriptive statistics will be used to compute the frequency of home practice completion, weekly, by the intervention participants. Proportions will be computed, along with 95% confidence intervals, to indicate the precision of the point estimate.

  5. Heart rate variability

    Time frame: Continuous monitoring over 8-week intervention

    Heart rate variability will be collected using the Garmin vivosmart5 watch

  6. Respiration rate

    Time frame: Continuous monitoring over 8-week intervention

    Respiration rate will be measured using the Garmin vivosmart5 watch

Secondary outcomes

  1. Perceived Stress Scale

    Time frame: Pre/post 8-week intervention

    The Perceived Stress Scale (PSS) is the most widely used psychological instrument for measuring the perception of stress. It is a measure of the degree to which situations in one's life are appraised as stressful. Lower values indicate less stress.

  2. Brief-COPE

    Time frame: Pre/post 8-week intervention

    The Brief-COPE is a 28 item self-report questionnaire designed to measure effective and ineffective ways to cope with a stressful life event. Higher scores indicate difficulty with coping.

  3. Pittsburgh Sleep Quality Assessment

    Time frame: Pre/post 8-week intervention

    The Pittsburgh Sleep Quality Index (PSQI) is an effective instrument used to measure the quality and patterns of sleep in adults. It differentiates "poor" from "good" sleep quality by measuring seven areas (components): subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction over the last month. Higher scores indicate more sleep disturbances.

  4. Mini-Mood and Anxiety Symptom Questionnaire

    Time frame: Pre/post 8-week intervention

    The Mood and Anxiety Symptom Questionnaire (MASQ) is an instrument containing a range of symptoms relevant to depression and anxiety. Items are evaluated for Distress, Anxiety, Depression with higher scores on subcomponents indicate more extreme levels of each metric.

  5. SF-12v2

    Time frame: Pre/post 8-week intervention

    The SF-12v2 is a health-related quality-of-life questionnaire consisting of twelve questions that measure eight health domains to assess physical and mental health. Higher scores indicate better physical and mental health.

  6. Social-Connectedness Scale

    Time frame: Pre/post 8-week intervention

    The social connectedness scale assesses the degree to which persons feel connected to others in their social environment. Higher scores indicate more social connectedness. The Social Connectedness Scale Revised [SCS-R; Cronbach's Alpha=0.94] will be used to measure social connectedness.

  7. Epigenetic (DNA Methylation) changes

    Time frame: Pre/post 8 week intervention, and Day 3 (midpoint)

    DNA Methylation changes in SKY and control groups (pre vs post interventions) will be measured by EPIC v2 array and whole-genome bisulfite sequencing (WGBS). Data analyses will be performed utilizing previously published standard pipelines.

  8. Gene expression changes

    Time frame: Pre/post 8 week intervention, and Day 3 (midpoint)

    RNA level changes between SKY and control groups will be examined.

  9. Proteomic changes

    Time frame: Pre/post 8 week intervention

    Protein level changes between SKY and control groups will be examined.

Other outcomes

  1. Cytokine changes in serum samples

    Time frame: Pre/post 8-week intervention

    Cytokine changes will be measured using ELISA assay on the blood sample collected and a standard ELISA panel for pro-inflammatory cytokines will be used to detect changes in their levels post intervention.

  2. Assessment of changes in mitochondrial DNA damage-associated molecular patterns (mtDNA DAMPs) from blood serum.

    Time frame: Pre/post 8-week intervention

    Cell-free DNA will be eluted to a specified serum volume and used for the mtDNA DAMPs assays.

  3. Serum biomarkers

    Time frame: Pre/post 8-week intervention

    Serum samples will be collected using standard procedures from the blood samples and immunoassayed using enzyme-linked immunosorbent assay to detect serum biomarkers

Sponsors and collaborators

Lead sponsor

University of Alabama at Birmingham

Other

Collaborators

  • M.D. Anderson Cancer Center

Registry information

Official study title

A Pilot Feasibility Study to Evaluate the Effect of SKY Breath Meditation on Health and Well-being

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Aug 31, 2022
Registry last updated
Mar 2, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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