Effects of Yoga on Heart Rate Variability, Electroencephalography, Quality of Life and Salivary Cortisol of Healthy Adult Subjets
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Sao Paulo
- Enrollment
- 30
- Locations
- 2
- Primary Endpoint
- Changes from baseline electroencephalography measures of brain waves at 1 and 2 months
Study Overview
Brief Summary
Since yoga breathing exercises are traditionally used to tranquilize the mind, and have a well-known positive effect on the cardiovascular system, it is our hypothesis that a respiratory yoga exercise named bhastrika pranayama may have positive effects on heart rate variability, electroencephalography, quality of life and salivary cortisol (stress hormone).
Detailed Description
The effects of yoga interventions on heart rate variability have been previously shown in our laboratory, having its efficacy in improving autonomic heart modulation of hypertensives and elderly subjets proven. However, there is a lack of data addressing the effects of such interventions on EEG patterns of health fit male subjects, as well as there are no study investigating if there is a relationship between heart autonomic modulation changes and EEG patterns. Thus, the aim of this study was to investigate the effects of 1 month respiratory yoga training on heart rate variability, EEG, salivary cortisol and quality of life of health fit male subjets.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Supportive Care
- Masking
- Single (Outcomes Assessor)
Eligibility Criteria
- Ages
- 25 Years to 45 Years (Adult)
- Sex
- Male
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Young adults;
- •Physically fit (engaged in physical activity at least 2-3 times a week);
- •Non athletes;
- •Possibility to follow protocol agenda.
Exclusion Criteria
- •Epileptic events in previous 5 years;
- •Chronic allergic rhinitis, with airway occlusion;
- •Oral bronchodilator usage;
- •Beta blocker user;
- •Any diagnosed cardiac rhythm alteration at rest;
- •Cerebral dysrhythmia;
- •Previous training in respiratory yoga exercises.
Outcomes
Primary Outcomes
Changes from baseline electroencephalography measures of brain waves at 1 and 2 months
Time Frame: baseline, one month, two months
64 active electrodes electroencephalography
Secondary Outcomes
- quality of life(study entry, one month, two months)
- frequency domain heart rate variability(study entry, one month, two months)
- salivary cortisol(study entry, one month, two months)
Investigators
Danilo Forghieri Santaella
Ph.D.
University of Sao Paulo