Journal List > J Korean Acad Nurs > v.35(7) > 1063320

J Korean Acad Nurs. 2005 Dec;35(7):1295-1303. Korean.
Published online March 28, 2017.
Copyright © 2005 Korean Society of Nursing Science
Effects of Abdominal Breathing Training Using Biofeedback on Stress, Immune Response and Quality of Life in Patients with a Mastectomy for Breast Cancer
Keum Soon Kim, So Woo Lee, Myoung Ae Choe, Myung Sun Yi, Smi Choi and So Hi Kwon
College of Nursing, Seoul National University, Korea.


This study was to determine the effects of abdominal breathing training using biofeedback on stress, immune response, and quality of life.


The study design was a nonequivalent control group pretest-posttest, quasi-experimental design. Twenty-five breast cancer patients who had completed adjuvant chemotherapy were enrolled. The experimental group(n=12) was provided with abdominal breathing training using biofeedback once a week for 4 weeks. State anxiety, cancer physical symptoms, serum cortisol, T cell subsets(T3, T4, T8), NK cell and quality of life were measured both before and after the intervention.


Though state anxiety, cancer physical symptoms, and serum cortisol were reduced after 4 weeks of abdominal breathing training using biofeedback, there was no statistical significance. It showed, however, improvement in quality of life (p=.02), and T3(p=.04).


Abdominal breathing training using biofeedback improves quality of life in breast cancer patients after a mastectomy. However, the mechanism of this beneficial effect and stress response requires further investigation with special consideration in subject selection and frequency of measurement. Nurses should consider this strategy as a standard nursing intervention for people living with cancer.

Keywords: Biofeedback; Abdominal breathing; Immune response; Quality of life; Breast cancer