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An eight-week yoga intervention is associated with improvements in pain, psychological functioning and mindfulness, and changes in cortisol levels in women with fibromyalgia.

Abstract

OBJECTIVES

Fibromyalgia (FM) is a chronic condition characterized by widespread musculoskeletal pain, fatigue, depression, and hypocortisolism. To date, published studies have not investigated the effects of yoga on cortisol in FM. This pilot study used a time series design to evaluate pain, psychological variables, mindfulness, and cortisol in women with FM before and after a yoga intervention.

METHODS

Participants (n = 22) were recruited from the community to participate in a 75 minute yoga class twice weekly for 8 weeks. Questionnaires concerning pain (intensity, unpleasantness, quality, sum of local areas of pain, catastrophizing, acceptance, disability), anxiety, depression, and mindfulness were administered pre-, mid- and post-intervention. Salivary cortisol samples were collected three times a day for each of two days, pre- and post-intervention.

RESULTS

Repeated measures analysis of variance (ANOVA) revealed that mean ± standard deviation (SD) scores improved significantly (p < 0.05) from pre- to post-intervention for continuous pain (pre: 5.18 ± 1.72; post: 4.44 ± 2.03), pain catastrophizing (pre: 25.33 ± 14.77; post: 20.40 ± 17.01), pain acceptance (pre: 60.47 ± 23.43; post: 65.50 ± 22.93), and mindfulness (pre: 120.21 ± 21.80; post: 130.63 ± 20.82). Intention-to-treat analysis showed that median AUC for post-intervention cortisol (263.69) was significantly higher (p < 0.05) than median AUC for pre-intervention levels (189.46). Mediation analysis revealed that mid-intervention mindfulness scores significantly (p < 0.05) mediated the relationship between pre- and post-intervention pain catastrophizing scores.

DISCUSSION

The results suggest that a yoga intervention may reduce pain and catastrophizing, increase acceptance and mindfulness, and alter total cortisol levels in women with FM. The changes in mindfulness and cortisol levels may provide preliminary evidence for mechanisms of a yoga program for women with FM. Future studies should use an RCT design with a larger sample size.

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  • Authors+Show Affiliations

    ,

    Department of Psychology, Faculty of Health, York University, Toronto, ON, Canada.

    ,

    Source

    Journal of pain research 4: 2011 pg 189-201

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    21887116

    Citation

    Curtis, Kathryn, et al. "An Eight-week Yoga Intervention Is Associated With Improvements in Pain, Psychological Functioning and Mindfulness, and Changes in Cortisol Levels in Women With Fibromyalgia." Journal of Pain Research, vol. 4, 2011, pp. 189-201.
    Curtis K, Osadchuk A, Katz J. An eight-week yoga intervention is associated with improvements in pain, psychological functioning and mindfulness, and changes in cortisol levels in women with fibromyalgia. J Pain Res. 2011;4:189-201.
    Curtis, K., Osadchuk, A., & Katz, J. (2011). An eight-week yoga intervention is associated with improvements in pain, psychological functioning and mindfulness, and changes in cortisol levels in women with fibromyalgia. Journal of Pain Research, 4, pp. 189-201. doi:10.2147/JPR.S22761.
    Curtis K, Osadchuk A, Katz J. An Eight-week Yoga Intervention Is Associated With Improvements in Pain, Psychological Functioning and Mindfulness, and Changes in Cortisol Levels in Women With Fibromyalgia. J Pain Res. 2011;4:189-201. PubMed PMID: 21887116.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - An eight-week yoga intervention is associated with improvements in pain, psychological functioning and mindfulness, and changes in cortisol levels in women with fibromyalgia. AU - Curtis,Kathryn, AU - Osadchuk,Anna, AU - Katz,Joel, Y1 - 2011/07/26/ PY - 2011/07/25/received PY - 2011/9/3/entrez PY - 2011/9/3/pubmed PY - 2011/9/3/medline KW - cortisol KW - fibromyalgia KW - pain KW - psychological variables KW - yoga SP - 189 EP - 201 JF - Journal of pain research JO - J Pain Res VL - 4 N2 - OBJECTIVES: Fibromyalgia (FM) is a chronic condition characterized by widespread musculoskeletal pain, fatigue, depression, and hypocortisolism. To date, published studies have not investigated the effects of yoga on cortisol in FM. This pilot study used a time series design to evaluate pain, psychological variables, mindfulness, and cortisol in women with FM before and after a yoga intervention. METHODS: Participants (n = 22) were recruited from the community to participate in a 75 minute yoga class twice weekly for 8 weeks. Questionnaires concerning pain (intensity, unpleasantness, quality, sum of local areas of pain, catastrophizing, acceptance, disability), anxiety, depression, and mindfulness were administered pre-, mid- and post-intervention. Salivary cortisol samples were collected three times a day for each of two days, pre- and post-intervention. RESULTS: Repeated measures analysis of variance (ANOVA) revealed that mean ± standard deviation (SD) scores improved significantly (p < 0.05) from pre- to post-intervention for continuous pain (pre: 5.18 ± 1.72; post: 4.44 ± 2.03), pain catastrophizing (pre: 25.33 ± 14.77; post: 20.40 ± 17.01), pain acceptance (pre: 60.47 ± 23.43; post: 65.50 ± 22.93), and mindfulness (pre: 120.21 ± 21.80; post: 130.63 ± 20.82). Intention-to-treat analysis showed that median AUC for post-intervention cortisol (263.69) was significantly higher (p < 0.05) than median AUC for pre-intervention levels (189.46). Mediation analysis revealed that mid-intervention mindfulness scores significantly (p < 0.05) mediated the relationship between pre- and post-intervention pain catastrophizing scores. DISCUSSION: The results suggest that a yoga intervention may reduce pain and catastrophizing, increase acceptance and mindfulness, and alter total cortisol levels in women with FM. The changes in mindfulness and cortisol levels may provide preliminary evidence for mechanisms of a yoga program for women with FM. Future studies should use an RCT design with a larger sample size. SN - 1178-7090 UR - https://www.unboundmedicine.com/medline/citation/21887116/An_eight_week_yoga_intervention_is_associated_with_improvements_in_pain_psychological_functioning_and_mindfulness_and_changes_in_cortisol_levels_in_women_with_fibromyalgia_ L2 - https://dx.doi.org/10.2147/JPR.S22761 DB - PRIME DP - Unbound Medicine ER -