NCT05455814

Brief Summary

This study will explore whether a 21-minute meditation practice called Shambhavi Mahamudra Kriya leads to changes in brain health and explore how it affects cognitive and physiological function.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 15, 2022

Completed
28 days until next milestone

First Posted

Study publicly available on registry

July 13, 2022

Completed
6 months until next milestone

Study Start

First participant enrolled

January 6, 2023

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

September 29, 2025

Status Verified

September 1, 2025

Enrollment Period

2.9 years

First QC Date

June 15, 2022

Last Update Submit

September 24, 2025

Conditions

Keywords

Functional MRIEEGStructural MRIShambhavi Mahamudra KriyaMindfulness

Outcome Measures

Primary Outcomes (2)

  • Change in Frontal Midline Theta Power after 6 Months of Daily Meditation Practice

    Frontal Midline Theta Power is obtained from an average of 8 electrodes (Fpc, Fc, Cz, Pz, Oz, F7, F8, P7, P8) around the midline in a standard EEG cap and has been proposed as a correlate of meditation success in previous studies. Increased value suggests increased control over the brain's default mode network, suggesting more successful meditation experience.

    Measured at Baseline and 6 months

  • Change in Gamma Slope Index (GSI) after 6 Months of Daily Meditation

    GSI is an indicator of the Excitation-Inhibition (E-I) balance in the brain and is computed from the power spectral density slope of oscillatory activity in the brain, taking the low-gamma (40-60Hz) band slope of the Power Spectral Density, and is steeper (more negative) when the E-I balance is tipped towards more inhibition. A higher negative value suggests shift of the brain's excitation/inhibition balance toward more inhibition, indicating a calmer brain.

    Measured at Baseline and 6 months

Secondary Outcomes (3)

  • Change in Brain cortical thickness after 6 Months of Daily Meditation Practice

    Measured at Baseline and 6 Months

  • Changes in Brain regional volume after 6 Months of Daily Meditation Practice

    Measured at Baseline and 6 Months

  • Change in Brain Connectivity after 6 Months of Daily Meditation Practice

    Measured at Baseline and 6 Months

Study Arms (2)

Wellness and Meditation-Based Intervention

EXPERIMENTAL

Shambhavi Mahamudra Kriya: a multi-component 21-minute meditation that incorporates a combination of different breathing patterns and meditative components.

Behavioral: Shambhavi Madamudra Kriya

Control

NO INTERVENTION

Control Group: selected to be age, gender and education level matched with the intervention group and will be asked to continue their daily routine while completing surveys at each timepoint.

Interventions

The intervention is taught at the Inner Engineering program offered by non-profit Isha Foundation as online as well as in-person formats. It incorporates a combination of different breathing patterns and meditative components. The intervention training provides precise, step by step and easy to follow instructions on how to perform this practice. Performed in a seated posture, this is a simple, safe and accessible intervention that requires no previous experience of meditation. The intervention selected for this study was shown to significantly reduce perceived stress, enhance self-reported general well-being, improve positive emotions, mindfulness, sleep, engagement, relationships, and may promote enhanced Heart Rate Variability and Sympathovagal balance.

Wellness and Meditation-Based Intervention

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Individuals between the ages of 20-65 years.
  • Subjects will be required to be able to understand study instructions and provide informed consent.
  • Currently residing in Massachusetts.

You may not qualify if:

  • Non-English Speaking. (Justification: Meditation and cognitive assessment instruments are not validated in a sufficient range of languages, and the research team lacks polylingual capabilities or the financial resources to hire interpreters for the duration of all proposed assessments.)
  • Practicing meditation regularly for the past 6 months (3 or more times per week of practice regularly for the past 6 month).
  • History of psychiatric illness such as severe anxiety, severe depression, Schizophrenia or bipolar disorder.
  • History of any form of cognitive decline or neurological conditions such as dementia, Parkinson's disease, Alzheimer's disease, Huntington's disease, brain tumors, brain surgery.
  • Current use of cognition enhancing drugs
  • Current management for chronic pain.
  • History (within the last 5 years) of stroke/aneurysm.
  • Active history (within the last 5 years) of alcohol or drug abuse (\> 10 drinks per week).
  • Current pregnancy or planning to become pregnant in the next 6 months.
  • Currently enrolled in another interventional study that could impact the primary outcome, as determined by the PI.
  • Educational attainment below high school level or equivalent.
  • Significant visual impairment.
  • If a woman becomes pregnant during the course of the study and is willing to stay as a subject, MRI will not be conducted.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beth Israel Deaconess Medical Centre

Boston, Massachusetts, 02115, United States

RECRUITING

Related Publications (15)

  • Yordanova J, Kolev V, Mauro F, Nicolardi V, Simione L, Calabrese L, Malinowski P, Raffone A. Common and distinct lateralised patterns of neural coupling during focused attention, open monitoring and loving kindness meditation. Sci Rep. 2020 May 4;10(1):7430. doi: 10.1038/s41598-020-64324-6.

    PMID: 32366919BACKGROUND
  • Fox KC, Dixon ML, Nijeboer S, Girn M, Floman JL, Lifshitz M, Ellamil M, Sedlmeier P, Christoff K. Functional neuroanatomy of meditation: A review and meta-analysis of 78 functional neuroimaging investigations. Neurosci Biobehav Rev. 2016 Jun;65:208-28. doi: 10.1016/j.neubiorev.2016.03.021. Epub 2016 Mar 28.

    PMID: 27032724BACKGROUND
  • Luders E, Cherbuin N, Gaser C. Estimating brain age using high-resolution pattern recognition: Younger brains in long-term meditation practitioners. Neuroimage. 2016 Jul 1;134:508-513. doi: 10.1016/j.neuroimage.2016.04.007. Epub 2016 Apr 11.

    PMID: 27079530BACKGROUND
  • Paixao L, Sikka P, Sun H, Jain A, Hogan J, Thomas R, Westover MB. Excess brain age in the sleep electroencephalogram predicts reduced life expectancy. Neurobiol Aging. 2020 Apr;88:150-155. doi: 10.1016/j.neurobiolaging.2019.12.015. Epub 2019 Dec 23.

    PMID: 31932049BACKGROUND
  • Peterson CT, Bauer SM, Chopra D, Mills PJ, Maturi RK. Effects of Shambhavi Mahamudra Kriya, a Multicomponent Breath-Based Yogic Practice ( Pranayama), on Perceived Stress and General Well-Being. J Evid Based Complementary Altern Med. 2017 Oct;22(4):788-797. doi: 10.1177/2156587217730934. Epub 2017 Sep 22.

    PMID: 29228793BACKGROUND
  • Muralikrishnan K, Balakrishnan B, Balasubramanian K, Visnegarawla F. Measurement of the effect of Isha Yoga on cardiac autonomic nervous system using short-term heart rate variability. J Ayurveda Integr Med. 2012 Apr;3(2):91-6. doi: 10.4103/0975-9476.96528.

    PMID: 22707866BACKGROUND
  • Brandmeyer T, Delorme A. Reduced mind wandering in experienced meditators and associated EEG correlates. Exp Brain Res. 2018 Sep;236(9):2519-2528. doi: 10.1007/s00221-016-4811-5. Epub 2016 Nov 4.

    PMID: 27815577BACKGROUND
  • Gao R, Peterson EJ, Voytek B. Inferring synaptic excitation/inhibition balance from field potentials. Neuroimage. 2017 Sep;158:70-78. doi: 10.1016/j.neuroimage.2017.06.078. Epub 2017 Jul 1.

    PMID: 28676297BACKGROUND
  • Orekhova EV, Stroganova TA, Schneiderman JF, Lundstrom S, Riaz B, Sarovic D, Sysoeva OV, Brant G, Gillberg C, Hadjikhani N. Neural gain control measured through cortical gamma oscillations is associated with sensory sensitivity. Hum Brain Mapp. 2019 Apr 1;40(5):1583-1593. doi: 10.1002/hbm.24469. Epub 2018 Dec 13.

    PMID: 30549144BACKGROUND
  • Kinnunen H, Rantanen A, Kentta T, Koskimaki H. Feasible assessment of recovery and cardiovascular health: accuracy of nocturnal HR and HRV assessed via ring PPG in comparison to medical grade ECG. Physiol Meas. 2020 May 7;41(4):04NT01. doi: 10.1088/1361-6579/ab840a.

    PMID: 32217820BACKGROUND
  • Altini M, Kinnunen H. The Promise of Sleep: A Multi-Sensor Approach for Accurate Sleep Stage Detection Using the Oura Ring. Sensors (Basel). 2021 Jun 23;21(13):4302. doi: 10.3390/s21134302.

    PMID: 34201861BACKGROUND
  • Wong W. Economic burden of Alzheimer disease and managed care considerations. Am J Manag Care. 2020 Aug;26(8 Suppl):S177-S183. doi: 10.37765/ajmc.2020.88482.

    PMID: 32840331BACKGROUND
  • Brandmeyer T, Delorme A. Closed-Loop Frontal Midlinetheta Neurofeedback: A Novel Approach for Training Focused-Attention Meditation. Front Hum Neurosci. 2020 Jun 30;14:246. doi: 10.3389/fnhum.2020.00246. eCollection 2020.

    PMID: 32714171BACKGROUND
  • Bruining H, Hardstone R, Juarez-Martinez EL, Sprengers J, Avramiea AE, Simpraga S, Houtman SJ, Poil SS, Dallares E, Palva S, Oranje B, Matias Palva J, Mansvelder HD, Linkenkaer-Hansen K. Measurement of excitation-inhibition ratio in autism spectrum disorder using critical brain dynamics. Sci Rep. 2020 Jun 8;10(1):9195. doi: 10.1038/s41598-020-65500-4.

    PMID: 32513931BACKGROUND
  • Arnal PJ, Thorey V, Debellemaniere E, Ballard ME, Bou Hernandez A, Guillot A, Jourde H, Harris M, Guillard M, Van Beers P, Chennaoui M, Sauvet F. The Dreem Headband compared to polysomnography for electroencephalographic signal acquisition and sleep staging. Sleep. 2020 Nov 12;43(11):zsaa097. doi: 10.1093/sleep/zsaa097.

    PMID: 32433768BACKGROUND

Related Links

MeSH Terms

Conditions

Anencephaly

Condition Hierarchy (Ancestors)

Neural Tube DefectsNervous System MalformationsNervous System DiseasesAbnormalities, Severe TeratoidCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Balachundar Subramaniam, MD, MPH

    Beth Israel Deaconess Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Balachundar Subramaniam, MD, MPH

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Model Details: This is a prospective cohort study with 40 intervention and 40 matched controls to be followed up for 6 months. Both cohorts will be recruited from meditation-Naïve healthy individuals. The intervention group will learn a 21 minute meditation to practice daily. Various outcomes related to brain health and brain age will be collected over a period of 6 months.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Anesthesia

Study Record Dates

First Submitted

June 15, 2022

First Posted

July 13, 2022

Study Start

January 6, 2023

Primary Completion

December 1, 2025

Study Completion

December 1, 2025

Last Updated

September 29, 2025

Record last verified: 2025-09

Locations