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Does Style Matter: Comparison of Moderate- to Low-intensity Styles of Yoga

11 augustus 2026 bijgewerkt door: Caitlin Cheruka

Effects of a Single Evening Session of Vinyasa Yoga to Gentle Yoga on Sleep and Cardiovascular Health in Adults

The goal of this clinical trial is to learn if yoga works to improve sleep and heart health in adults with and without insomnia disorder. The main questions it aims to answer are:

  • Does the style of yoga impact participants heart health overnight?
  • Does the style of yoga improve participants sleep following a single session? Researchers will compare adults with insomnia disorder to adults with healthy sleep .

Participants will:

  • Complete a moderate-intensity yoga practice, a low-intensity intensity yoga practice, and a quiet rest period while watching a nature documentary in the evening on three separate evenings
  • Participants will have their sleep and heart health measured using a watch and heart rate monitor overnight following each visit

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

This study investigates how two different styles of yoga, vinyasa yoga and gentle yoga, impact sleep and heart health in adults with and without insomnia. Insomnia, a common sleep disorder, increases the risk of heart disease, the leading cause of death worldwide. Recently, the American Heart Association identified poor sleep as a key factor in maintaining heart health, yet there is limited research on therapies that can simultaneously improve both sleep and cardiovascular function. By examining the immediate effects of a single evening session of yoga, this study aims to determine if yoga could serve as a practical, complementary approach to managing sleep and heart health.

Using a three-arm randomized crossover design, the study includes 42 participants, aged 18-40, who are either good sleepers or have diagnosed insomnia. Each participant will complete three sessions: one of vinyasa yoga, one of gentle yoga, and a non-active control session, with each session separated by a 72-hour washout period to avoid carryover effects. The yoga sessions will be standardized to 60 minutes and take place in the evening, approximately 4-6 hours before bedtime, under the supervision of a trained research staff.

The study has three main goals. First, examine whether different yoga styles influence heart function during sleep by measuring heart rate variability (HRV), a marker of nervous system balance that reflects the body's ability to regulate stress and relaxation. The investigators hypothesize that both yoga styles will improve HRV in people with insomnia more than in healthy sleepers. Second, to determine if vinyasa or gentle yoga improves sleep quality-measured by sleep efficiency (the percentage of time in bed spent asleep), total sleep time, and self-reported sleep quality-in adults with insomnia compared to those without sleep problems. Lastly, measure the impact of yoga on blood vessel function using flow-mediated dilation (FMD), a test that measures how well blood vessels expand in response to increased blood flow, with the expectation that vinyasa yoga's moderate intensity will provide greater immediate benefits compared to gentle yoga.

Studietype

Ingrijpend

Inschrijving (Geschat)

42

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Verenigde Staten
    • Florida
      • Orlando, Florida, Verenigde Staten, 32816
        • Werving
        • University of Central Florida
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

  • Adults 18-40 years
  • Insufficiently inactive define by the L-CAT (responses below public health physical activity guidelines)
  • Physical activity is not contraindicated (i.e., no affirmative responses on the Physical Activity Readiness Questionnaire for Everyone (PAR-Q+)
  • Adults with diagnosed insomnia disorder and score ≥ 10 on the Insomnia Severity Index
  • Good sleeps a score < 10 (no history of sleep disorder)
  • Basic understanding of yoga poses
  • Access to a smart device (such as a smartphone or tablet)

Exclusion Criteria:

  • Regular yoga practice (> 60 minutes per week)
  • Any diagnosed medical condition requiring medical clearance determined 'Yes' response on questions pertaining to a present medical condition(s) via PAR-Q+. This includes, but is not limited to, uncontrolled cardiovascular, metabolic, respiratory, musculoskeletal, neurological, or mental health conditions; recent stroke or concussion; active cancer treatment; and any combination of medical conditions that pose a health risk without physician supervision. All "yes" responses on the PAR-Q+ will be evaluated, and individuals requiring clearance will not be eligible to participate.
  • Physical limitations and/or mobility restrictions (such as bone, joint, or soft tissue such as muscle, ligament, or tendon that could be made worse by becoming more physically active) via PAR-Q+
  • Untreated major psychiatric disorders (e.g. major depression, bipolar disorder, schizophrenia)
  • Elevated risk for sleep apnea (i.e., STOP-Bang score ≥ 5)
  • Any other sleep disorders other than insomnia (e.g., sleep apnea, restless legs syndrome, circadian rhythm disorder, etc.)
  • Current treatment for insomnia (e.g., hypnotic medications, cognitive behavioral therapy for insomnia, etc.)
  • Current medications that affect heart or blood pressure (i.e., anti-depressants, beta-blockers, etc.)
  • Current or planned pregnancy within the next 3 months
  • Overnight shift work defined as regularly working anytime between 00:00 and 6:00am

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Ondersteunende zorg
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: vinyasa yoga
60 minute moderate-intensity yoga session
Gedragsmatig: Vinyasa yoga
Participants will follow a pre-recorded standardized sequence that includes a person demonstrating each sequence and provides verbal cues for the vinyasa yoga session. The 60-minute vinyasa yoga protocol incorporated standing, seated, and supine postures and included the following order of sequences: integration, sun salutations, crescent lunge series, balancing, standing, back bending, and restorative series.
Experimenteel: gentle yoga
60 minute low-intensity yoga session
Gedragsmatig: Gentle yoga
Participants will follow a pre-recorded standardized sequence that includes a person demonstrating each sequence and provides verbal cues for the gentle yoga session. This sequence focuses primarily on seated and supine postures and is designed to be accessible, safe, and restorative. All poses are low-impact and supported using yoga blocks to promote comfort and reduce physical strain.
Ander: Control Condition
60-minute non-active control condition
Ander: Non-active control
The non-active control session, participants will complete a quiet rest period while watching a nature documentary. The film is educational in nature and has been carefully selected to avoid any graphic, distressing, offensive, or psychologically sensitive content. It is commercially available and rated G for general audiences. Participants will be asked to remain seated and refrain from the use of electronic devices. A staff member will remain present to ensure participants following procedures.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in nocturnal root mean square of successive difference between normal heartbeats (RMSSD) heart rate variability (HRV)
Tijdsspanne: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Nocturnal root mean square of successive difference between normal heartbeats will be assessed immediately after each experimental session for 1 night; a higher value indicates better cardiovascular health
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in sleep efficiency
Tijdsspanne: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Actigraphy-assessed sleep efficiency will be measured overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights. Values are represented as a percentage, with higher values indicating better sleep efficiency
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Change in total sleep time
Tijdsspanne: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Actigraphy-assessed total sleep time will be immediately assessed after each experimental sessions for 1 night. Total sleep time will be reported in hours.
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Change in wake after sleep onset
Tijdsspanne: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Actigraphy-assessed wake after sleep onset will be immediately assessed after each experimental sessions for 1 night. Wake after sleep onset will be presented as minutes, the higher the values the more time spent awake during the sleep period.
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Change in sleep quality
Tijdsspanne: The following morning after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate mornings.
Diary-assessed sleep quality will be immediately assessed after each experimental sessions the following morning, on 3 seperate mornings. The sleep diary will be the Expanded Consensus Sleep Diary for Evening. Participants will rate their quality of sleep (ranging from 1 ['very poor'] to 5 ['very good'], higher scores indicating better sleep quality.
The following morning after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate mornings.
Change in nocturnal heart rate
Tijdsspanne: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Nocturnal heart rate will be assessed immediately after each experimental session for 1 night (3 seperate nights); a lower resting nocturnal heart rate value indicates better cardiovascular health
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
Change in systolic blood pressure
Tijdsspanne: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Systolic blood pressure will be measured pre- , immediate-post, and 60-minute post following each experimental session
pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in diastolic blood pressure
Tijdsspanne: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Diastolic blood pressure will be measured pre- , immediate-post, and 60-minute post following each experimental session
pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in heart rate
Tijdsspanne: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
heart rate will be measured pre- , immediate-post, and 60-minute post following each experimental session
pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in root mean square of successive difference between normal heartbeats
Tijdsspanne: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Root mean square of successive difference between normal heartbeats will be measured pre- , immediate-post, and 60-minute post following each experimental session
pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in flow-mediated dilation
Tijdsspanne: pre- , 60-minute post, and delayed-posted (morning after) following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Flow-mediated dilation will be measured pre- , 60-minute post, and delayed-post (morning after) following each experimental session
pre- , 60-minute post, and delayed-posted (morning after) following each experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in acute anxiety symptoms
Tijdsspanne: Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
Acute anxiety symptoms will be measured using the State-Trait Inventory 20-item. Each item is rated on a 4-point scale ranging from 1 (not at all) to 4 (very much so). Scores are summed for a total that ranges from 20-80; higher scores indicate greater symptoms of anxiety.
Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
Change in mood
Tijdsspanne: Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
Acute changes in mood will be measured using the Profile of Mood States brief form. This will assess the feelings of tension, depressed mood, energy, fatigue, and total mood disturbances based on how the participant feels right now using a 5-point Likert scale ranging from 0 "not at all" to 4 "extremely
Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Caitlin Cheruka

Medewerkers

American College of Sports Medicine

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 juni 2026

Primaire voltooiing (Geschat)

1 september 2026

Studie voltooiing (Geschat)

1 september 2026

Studieregistratiedata

Eerst ingediend

1 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

4 juni 2026

Eerst geplaatst (Werkelijk)

10 juni 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

13 augustus 2026

Laatste update ingediend die voldeed aan QC-criteria

11 augustus 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • STUDY00007288
  • 5523 (Ander subsidie-/financieringsnummer: ACSM Foundation)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

Individual deidentified data that are relevant to the primary aims of the study will be provided to external investigators along with a relevant data dictionary.

IPD-tijdsbestek voor delen

Beginning 1 year following peer-reviewed publication of research questions outlined in grant and ending 5 years following publication of study results

IPD-toegangscriteria voor delen

Data access will be provided to external researchers who provide a methodologically sound proposal for secondary data analysis that is approved by the investigators of the study. Proposals should be directed to the study PI.

IPD delen Ondersteunend informatietype

  • LEERPROTOCOOL

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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