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Complement Ther Med. 2017 Dec;35:120-126. doi: 10.1016/j.ctim.2017.10.009. Epub 2017 Oct 31.

A single session of hatha yoga improves stress reactivity and recovery after an acute psychological stress task-A counterbalanced, randomized-crossover trial in healthy individuals.

Author information

1
The Faculty of Health Sciences and Charles Perkins Centre, University of Sydney, Sydney, Australia; Departmento de Medicina, Universidade Estadual de Maringá, UEM, Maringá, Brazil.
2
The Faculty of Health Sciences and Charles Perkins Centre, University of Sydney, Sydney, Australia; Departmento de Esportes, Universidade Federal de Minas Gerais, UFMG, BELO HORIZONTE, Brazil.
3
The Faculty of Health Sciences and Charles Perkins Centre, University of Sydney, Sydney, Australia.
4
Prevention Research Collaboration, School of Public Health, Sydney Medical School, Charles Perkins Centre, University of Sydney, Sydney, Australia.
5
Prevention Research Collaboration, School of Public Health, Sydney Medical School, Charles Perkins Centre, University of Sydney, Sydney, Australia; Department of Epidemiology & Public Health, Institute of Epidemiology and Healthcare, University College London, London, UK.
6
The Faculty of Health Sciences and Charles Perkins Centre, University of Sydney, Sydney, Australia. Electronic address: Kate.Edwards@sydney.edu.au.

Abstract

OBJECTIVES:

Yoga is promoted as an anti-stress activity, however, little is known about the mechanisms through which it acts. The present study investigated the acute effects of a hatha yoga session, displayed on a video, on the response to and recovery from an acute psychological stressor.

METHODS:

Twenty-four healthy young adults took part in a counterbalanced, randomized-crossover trial, with a yoga and a control condition (watching TV). Participants attended the laboratory in the afternoon on two days and each session comprised a baseline, control or yoga task, stress task and recovery. Blood pressure (BP), heart rate (HR) and salivary cortisol responses were measured. State cognitive- and somatic-anxiety along with self-confidence were assessed before and after the stressor.

RESULTS:

Although no difference in the BP or HR responses to stress were found between conditions, systolic BP (p=0.047) and diastolic BP (p=0.018) recovery from stress were significantly accelerated and salivary cortisol reactivity was significantly lower (p=0.01) in the yoga condition. A yoga session also increased self-confidence (p=0.006) in preparation for the task and after completion. Moreover, self-confidence reported after the stress task was considered debilitative towards performance in the control condition, but remained facilitative in the yoga condition.

CONCLUSION:

Our results show that a single video-instructed session of hatha yoga was able to improve stress reactivity and recovery from an acute stress task in healthy individuals. These positive preliminary findings encourage further investigation in at-risk populations in which the magnitude of effects may be greater, and support the use of yoga for stress reactivity and recovery.

KEYWORDS:

Acute stress; Blood pressure; Cortisol; Meditation; Self-confidence

PMID:
29154056
DOI:
10.1016/j.ctim.2017.10.009
[Indexed for MEDLINE]

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