Document Detail

Effects of long-term dharma-chan meditation on cardiorespiratory synchronization and heart rate variability behavior.
MedLine Citation:
PMID:  23323597     Owner:  NLM     Status:  MEDLINE    
Remarkable changes in cardiorespiratory interactions are frequently experienced by Chan meditation practitioners following years of practice. This study compares the results of our study on cardiorespiratory interactions for novice (control group) and experienced (experimental group) Chan meditation practitioners. The effectual co-action between the cardiac and respiratory systems was evaluated by the degree of cardiorespiratory phase synchronization (CRPS). In addition, an adaptive-frequency-range (AFR) scheme to reliably quantify heart rate variability (HRV) was developed for assessing the regulation of sympathetic-parasympathetic activity and the efficiency of pulmonary gas exchange. The enhanced HRV method, named HRVAFR, can resolve the issue of overestimating HRV under the condition of slow respiration rates, which is frequently encountered in studies on Chan meditation practitioners. In the comparison of the three data sets collected from the two groups, our findings resulted in innovative hypotheses to interpret the extraordinary process of the rejuvenation of cardiorespiratory functions through long-term Dharma-Chan meditation practice. Particularly, advanced practitioners exhibit a continuously high degree of cardiorespiratory phase synchronization, even during rapid breathing. Based on our post-experimental interview with advanced practitioners, the activation of inner Chakra energy, during the course of Chan-detachment practice, frequently induces perceptible physiological-mental reformation, including an efficient mechanism for regulating cardiorespiratory interactions.
Chih-Hao Chang; Pei-Chen Lo
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Rejuvenation research     Volume:  16     ISSN:  1557-8577     ISO Abbreviation:  Rejuvenation Res     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-04-19     Completed Date:  2014-03-21     Revised Date:  2014-04-01    
Medline Journal Info:
Nlm Unique ID:  101213381     Medline TA:  Rejuvenation Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  115-23     Citation Subset:  IM    
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MeSH Terms
Heart / physiology*
Heart Rate / physiology*
Meditation / methods*
Middle Aged
Time Factors
Young Adult

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