Does Style Matter: Comparison of Moderate- to Low-intensity Styles of Yoga
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-40
SponsorCaitlin Cheruka
About this trial
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
Eligibility criteria
This trial accepts healthy volunteersQualifiers
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
Disqualifiers
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)
Trial design
Design model
Crossover
Treatments tested in this trial
Vinyasa yoga
BehavioralParticipants 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.
Gentle yoga
BehavioralParticipants 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.
Non-active control
Other interventionThe 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.
Treatment groups
42 Participants
are divided into 3 treatment groupsGroup A: vinyasa yogaExperimental treatment 1 intervention
Group B: gentle yogaExperimental treatment 1 intervention
Group C: Control ConditionOther 1 intervention
Trial outcomes
Primary outcomes
1
Change in nocturnal root mean square of successive difference between normal heartbeats (RMSSD) heart rate variability (HRV)
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
Time frame
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.Secondary outcomes
1
Change in sleep efficiency
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
Time frame
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.2
Change in total sleep time
Actigraphy-assessed total sleep time will be immediately assessed after each experimental sessions for 1 night. Total sleep time will be reported in hours.
Time frame
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.3
Change in wake after sleep onset
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.
Time frame
Overnight immediately after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate nights.4
Change in sleep quality
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.
Time frame
The following morning after each experimental sessions (vinyasa yoga, gentle yoga, non-active control) for a total of 3 separate mornings.Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Caitlin Cheruka
Lead sponsor
University of Central Florida
Sponsor institution
American College of Sports Medicine
Collaborator
Source ClinicalTrials.gov