Does Style Matter: Comparison of Moderate- to Low-intensity Styles of Yoga
tiistai 11. elokuuta 2026 päivittänyt: 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
Tutkimuksen yleiskatsaus
Tila
Rekrytointi
Interventio / Hoito
Yksityiskohtainen kuvaus
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.
Opintotyyppi
Interventio
Ilmoittautuminen (Arvioitu)
42
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.
Opiskeluyhteys
- Nimi: Caitlin A. Cheruka, PhD
- Puhelinnumero: 610-247-5030
- Sähköposti: caitlin.cheruka@ucf.edu
Opiskelupaikat
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Florida
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Orlando, Florida, Yhdysvallat, 32816
- Rekrytointi
- University of Central Florida
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Ottaa yhteyttä:
- Caitlin A. Cheruka, PhD
- Puhelinnumero: 610-247-5030
- Sähköposti: caitlin.cheruka@ucf.edu
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-
Osallistumiskriteerit
Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Joo
Kuvaus
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
Opintosuunnitelma
Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Tukevaa hoitoa
- Jako: Satunnaistettu
- Inventiomalli: Crossover-tehtävä
- Naamiointi: Yksittäinen
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Kokeellinen: vinyasa yoga
60 minute moderate-intensity yoga session
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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.
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Kokeellinen: gentle yoga
60 minute low-intensity yoga session
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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.
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Muut: Control Condition
60-minute non-active control condition
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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.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Change in nocturnal root mean square of successive difference between normal heartbeats (RMSSD) heart rate variability (HRV)
Aikaikkuna: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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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
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Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Change in sleep efficiency
Aikaikkuna: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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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
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Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Change in total sleep time
Aikaikkuna: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Actigraphy-assessed total sleep time will be immediately assessed after each experimental sessions for 1 night.
Total sleep time will be reported in hours.
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Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Change in wake after sleep onset
Aikaikkuna: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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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.
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Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Change in sleep quality
Aikaikkuna: The following morning after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate mornings.
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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.
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The following morning after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate mornings.
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Change in nocturnal heart rate
Aikaikkuna: Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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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
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Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.
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Change in systolic blood pressure
Aikaikkuna: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Systolic blood pressure will be measured pre- , immediate-post, and 60-minute post following each experimental session
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pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Change in diastolic blood pressure
Aikaikkuna: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Diastolic blood pressure will be measured pre- , immediate-post, and 60-minute post following each experimental session
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pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Change in heart rate
Aikaikkuna: pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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heart rate will be measured pre- , immediate-post, and 60-minute post following each experimental session
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pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Change in root mean square of successive difference between normal heartbeats
Aikaikkuna: 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
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pre- , immediate-post, and 60-minute post following each experimental session (vinyasa yoga, gentle yoga, non-active control)
|
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Change in flow-mediated dilation
Aikaikkuna: pre- , 60-minute post, and delayed-posted (morning after) following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Flow-mediated dilation will be measured pre- , 60-minute post, and delayed-post (morning after) following each experimental session
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pre- , 60-minute post, and delayed-posted (morning after) following each experimental session (vinyasa yoga, gentle yoga, non-active control)
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Change in acute anxiety symptoms
Aikaikkuna: Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
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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.
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Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
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Change in mood
Aikaikkuna: Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
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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
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Immediately pre- and post-experimental session (vinyasa yoga, gentle yoga, non-active control)
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Yhteistyökumppanit ja tutkijat
Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.
Sponsori
Yhteistyökumppanit
Opintojen ennätyspäivät
Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan julkisella verkkosivustolla.
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Maanantai 1. kesäkuuta 2026
Ensisijainen valmistuminen (Arvioitu)
Tiistai 1. syyskuuta 2026
Opintojen valmistuminen (Arvioitu)
Tiistai 1. syyskuuta 2026
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Maanantai 1. kesäkuuta 2026
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Torstai 4. kesäkuuta 2026
Ensimmäinen Lähetetty (Todellinen)
Keskiviikko 10. kesäkuuta 2026
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Torstai 13. elokuuta 2026
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Tiistai 11. elokuuta 2026
Viimeksi vahvistettu
Lauantai 1. elokuuta 2026
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- STUDY00007288
- 5523 (Muu apuraha/rahoitusnumero: ACSM Foundation)
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
JOO
IPD-suunnitelman kuvaus
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-jaon aikakehys
Beginning 1 year following peer-reviewed publication of research questions outlined in grant and ending 5 years following publication of study results
IPD-jaon käyttöoikeuskriteerit
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-jakamista tukeva tietotyyppi
- STUDY_PROTOCOL
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