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Att förebygga stressrelaterad psykisk ohälsa med yoga: En systematisk litteraturstudie om yoga och stresshormonet kortisol
Linnaeus University, Faculty of Health and Life Sciences, Department of Chemistry and Biomedical Sciences.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
To prevent stress-related mental illness with yoga : A systematic literature study on yoga and the stress hormone cortisol (English)
Abstract [sv]

Bakgrund: Stress samt stressrelaterad psykisk ohälsa ökar i samhället och det är viktigt att finna alternativ som bromsar utvecklingen. Stress är ett normalt fysiologiskt tillstånd men under längre tid utan återhämtning kan stress leda till psykisk ohälsa. Yogastudier har visat en stressreducerande effekt på humör och yoga har blivit ett populärt alternativ för att minska upplevda stressymptom. Det kan därför vara intressant att studera bakomliggande mekanismer till upplevd stressreducering. Hormonet kortisol ökar vid stress. Kanske har yoga stressreducerande effekt via sänkning av hormonet. Syfte: Studiens syfte är att studera om upplevd stressreducering vid yogautövande har ett samband med sänkta kortisolnivåer hos friska vuxna individer. Metod: En systematisk litteraturstudie genomfördes på artiklar publicerade 2009-2018. Artiklarna söktes upp i PubMed samt Web of Science. Resultat: Nio studier granskades (sju experimentella och två observationsstudier). Sex studier visade helt eller delvis sänkt kortisolnivå. En experimentell samt två observationsstudier visade inte signifikant lägre kortisolnivåer. Delvis förbättrat humör och kognitiv förmåga sågs i studierna. Slutsats: Sänkta kortisolnivåer vid yogautövande sågs. Dock fanns studier som inte visade minskade kortisolnivåer och studierna har brister som sänker bevisstyrkan. Bättre studier behövs för att kunna fastställa ett samband.

Abstract [en]

Background: Stress and stress-related mental illness is increasing in our society and it is important to find options to slow down the development. Stress is a normal physical condition but for a long time without recovery stress can lead to mental illness. Yoga studies have shown a stress-reducing effect on mood and yoga has become a popular option to reduce perceived stress symptoms. Therefore it can be interesting to study underlying mechanisms for perceived stress reduction. The hormone cortisol increases during stress. Perhaps yoga has a stress-reducing effect through decreasing the hormone. Aims: The aim of the study is to exam whether perceived stress reduction in yoga practice is related to lowered cortisol levels in healthy adults. Methods: A systematic literature study was carried out on articles published in 2009-2018. The articles were searched in PubMed and Web of Science. Results: Nine studies were reviewed (seven experimental and two observations studies). Six studies showed complete or partial reduction of cortisol levels. An experimental and two observation studies did not show significantly lower cortisol levels. Partially improved mood and cognitive ability were seen. Conclusions: Decreased cortisol levels in yoga practice were observed. However, there were studies that did not show decreased cortisol levels and the studies have shortcomings that lower the strength of evidence. Better studies are needed to establish a relationship.   

Place, publisher, year, edition, pages
2019. , p. 28
Keywords [en]
Yoga, stress, mental illness, cortisol, HPA-axis
Keywords [sv]
Yoga, stress, psykisk ohälsa, kortisol, HPA-axeln
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-85546OAI: oai:DiVA.org:lnu-85546DiVA, id: diva2:1326776
Subject / course
Biomedical Sciences
Educational program
Health Science Programme with Specialisation in Bio Sciences, 180 credits
Supervisors
Examiners
Available from: 2019-06-24 Created: 2019-06-18 Last updated: 2019-06-24Bibliographically approved

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