A Preliminary Study of the Effects of a Single Session of Swedish Massage on Hypothalamic-Pituitary-Adrenal and Immune Function in Normal Individuals

J Altern Complement Med. 2010 Oct;16(10):1079-88. doi: 10.1089/acm.2009.0634.

Abstract

Objectives: Massage therapy is a multi-billion dollar industry in the United States with 8.7% of adults receiving at least one massage within the last year; yet, little is known about the physiologic effects of a single session of massage in healthy individuals. The purpose of this study was to determine effects of a single session of Swedish massage on neuroendocrine and immune function. It was hypothesized that Swedish Massage Therapy would increase oxytocin (OT) levels, which would lead to a decrease in hypothalamic-pituitary-adrenal (HPA) activity and enhanced immune function.

Design: The study design was a head-to-head, single-session comparison of Swedish Massage Therapy with a light touch control condition. Serial measurements were performed to determine OT, arginine-vasopressin (AVP), adrenal corticotropin hormone (ACTH), cortisol (CORT), circulating phenotypic lymphocytes markers, and mitogen-stimulated cytokine production.

Setting: This research was conducted in an outpatient research unit in an academic medical center.

Subjects: Medically and psychiatrically healthy adults, 18-45 years old, participated in this study.

Intervention: The intervention tested was 45 minutes of Swedish Massage Therapy versus a light touch control condition, using highly specified and identical protocols.

Outcome measures: The standardized mean difference was calculated between Swedish Massage Therapy versus light touch on pre- to postintervention change in levels of OT, AVP, ACTH, CORT, lymphocyte markers, and cytokine levels.

Results: Compared to light touch, Swedish Massage Therapy caused a large effect size decrease in AVP, and a small effect size decrease in CORT, but these findings were not mediated by OT. Massage increased the number of circulating lymphocytes, CD 25+ lymphocytes, CD 56+ lymphocytes, CD4 + lymphocytes, and CD8+ lymphocytes (effect sizes from 0.14 to 0.43). Mitogen-stimulated levels of interleukin (IL)-1ß, IL-2, IL-4, IL-5, IL-6, IL-10, IL-13, and IFN-γ decreased for subjects receiving Swedish Massage Therapy versus light touch (effect sizes from -0.22 to -0.63). Swedish Massage Therapy decreased IL-4, IL-5, IL-10, and IL-13 levels relative to baseline measures.

Conclusions: Preliminary data suggest that a single session of Swedish Massage Therapy produces measurable biologic effects. If replicated, these findings may have implications for managing inflammatory and autoimmune conditions.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Cytokines / blood
  • Female
  • Humans
  • Hypothalamo-Hypophyseal System / physiology*
  • Male
  • Massage / methods*
  • Middle Aged
  • Pituitary-Adrenal System / physiology*
  • Young Adult

Substances

  • Cytokines