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

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