Acute effects of traditional Thai massage on electroencephalogram in patients with scapulocostal syndrome.

OBJECTIVE To investigate acute effects of traditional Thai massage (TTM) on brain electrical activity (electroencephalogram (EEG) signals), anxiety and pain in patients with scapulocostal syndrome (SCS). DESIGN A single-blind, randomized clinical trial. SETTING The School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Thailand. INTERVENTION Forty patients, who were diagnosed with SCS, were randomly allocated to receive a 30-min session of either TTM or physical therapy (PT) using ultrasound therapy and hot packs. OUTCOMES Electroencephalogram (EEG), State Anxiety Inventory (STAI), and pain intensity rating. RESULTS Results showed that both TTM and PT were associated with significant decreases in anxiety and pain intensity (p<0.01). However, there was a significantly greater reduction in anxiety and pain intensity for the TTM group when compared with the PT group. Analysis of EEG in the TTM group showed a significant increase in relaxation, manifested as an increase in delta activity (p<0.05) and a decrease in theta, alpha and beta activity (p<0.01). Similar changes were not found in the PT group. The EEG measures were also significantly different when compared between the groups (p<0.01), except for delta activity (p=0.051), indicating lower states of arousal with the TTM treatment. CONCLUSION It is suggested that TTM provides acute neural effects that increase relaxation and decrease anxiety and pain intensity in patients with SCS.