International Journal of Yoga

ORIGINAL ARTICLE
Year
: 2017  |  Volume : 10  |  Issue : 2  |  Page : 73--80

Longitudinal and immediate effect of Kundalini Yoga on salivary levels of cortisol and activity of alpha-amylase and its effect on perceived stress


Jocelyn N Garcia-Sesnich1, Mauricio Garrido Flores2, Marcela Hernández Ríos3, Jorge Gamonal Aravena1 
1 Laboratory of Periodontal Biology, Faculty of Dentistry, University of Chile, Santiago, Chile
2 Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
3 Department of Pathology, Faculty of Dentistry, University of Chile, Santiago, Chile

Correspondence Address:
Jocelyn N Garcia-Sesnich
Sergio Livingstone 943, Independencia, Santiago
Chile

Context: Stress is defined as an alteration of an organism's balance in response to a demand perceived from the environment. Diverse methods exist to evaluate physiological response. A noninvasive method is salivary measurement of cortisol and alpha-amylase. A growing body of evidence suggests that the regular practice of Yoga would be an effective treatment for stress. Aims: To determine the Kundalini Yoga (KY) effect, immediate and after 3 months of regular practice, on the perception of psychological stress and the salivary levels of cortisol and alpha-amylase activity. Settings and Design: To determine the psychological perceived stress, levels of cortisol and alpha-amylase activity in saliva, and compare between the participants to KY classes performed for 3 months and a group that does not practice any type of yoga. Subjects and Methods: The total sample consisted of 26 people between 18 and 45-year-old; 13 taking part in KY classes given at the Faculty of Dentistry, University of Chile and 13 controls. Salivary samples were collected, enzyme-linked immunosorbent assay was performed to quantify cortisol and kinetic reaction test was made to determine alpha-amylase activity. Perceived Stress Scale was applied at the beginning and at the end of the intervention. Statistical Analysis Used: Statistical analysis was applied using Stata v11.1 software. Shapiro–Wilk test was used to determine data distribution. The paired analysis was fulfilled by t-test or Wilcoxon signed-rank test. T-test or Mann–Whitney's test was applied to compare longitudinal data. A statistical significance was considered when P< 0.05. Results: KY practice had an immediate effect on salivary cortisol. The activity of alpha-amylase did not show significant changes. A significant decrease of perceived stress in the study group was found. Conclusions: KY practice shows an immediate effect on salivary cortisol levels and on perceived stress after 3 months of practice.


How to cite this article:
Garcia-Sesnich JN, Flores MG, Ríos MH, Aravena JG. Longitudinal and immediate effect of Kundalini Yoga on salivary levels of cortisol and activity of alpha-amylase and its effect on perceived stress.Int J Yoga 2017;10:73-80


How to cite this URL:
Garcia-Sesnich JN, Flores MG, Ríos MH, Aravena JG. Longitudinal and immediate effect of Kundalini Yoga on salivary levels of cortisol and activity of alpha-amylase and its effect on perceived stress. Int J Yoga [serial online] 2017 [cited 2020 Aug 6 ];10:73-80
Available from: http://www.ijoy.org.in/article.asp?issn=0973-6131;year=2017;volume=10;issue=2;spage=73;epage=80;aulast=Garcia-Sesnich;type=0