A Randomized Controlled Trial for the Effectiveness of Progressive Muscle Relaxation and Guided Imagery as Anxiety Reducing Interventions in Breast and Prostate Cancer Patients Undergoing Chemotherapy
Date Issued
January 1, 2015
DOI
10.1155/2015/270876
Abstract
Objective. To test the effectiveness of guided imagery (GI) and progressive muscle relaxation (PMR) as stress reducing interventions in patients with prostate and breast cancer who undergo chemotherapy. Methods. Patients were randomly assigned to either the control group or the intervention group (PMR and GI). Patients were observed for a total duration of 3 weeks and assessed with the SAS and BECK-II questionnaires for anxiety and depression, respectively, in addiotion to two biological markers (saliva cortisol and saliva amylase) (trial registration number: NCT01275872). Results. 256 patients were registered and 236 were randomly assigned. In total 104 were randomised to the control group and 104 to the intervention group. Intervention's mean anxiety score and depression score changes were significantly different compared to the control's (b=-29.4, p<0.001; b=-29.4, p<0.001, resp.). Intervention group's cortisol levels before the intervention (0.30±0.25) gradually decreased up to week 3 (0.16±0.18), whilst the control group's cortisol levels before the intervention (0.21±0.22) gradually increased up to week 3 (0.44±0.35). The same interaction appears for the Amylase levels (p<0.001). Conclusions. The findings showed that patients with prostate and breast cancer undergoing chemotherapy treatment can benefit from PMR and GI sessions to reduce their anxiety and depression.
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