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).
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 Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
30
Bhastrika yoga respiratory training: 30 kapalabhati and 1 surya bedhana form 1 bhastrika
waiting or detraining period
Universidade Federal do Rio Grande do Norte - UFRN
Natal, Rio Grande do Norte, Brazil
Changes from baseline electroencephalography measures of brain waves at 1 and 2 months
64 active electrodes electroencephalography
Time frame: baseline, one month, two months
frequency domain heart rate variability
R-R interval autoregressive spectral analysis
Time frame: study entry, one month, two months
salivary cortisol
Time frame: study entry, one month, two months
quality of life
quality of life will be addressed by the World Health Organization Questionaire of Quality of Life in its brief form
Time frame: study entry, one month, two months
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