Journal List > Asian Oncol Nurs > v.15(4) > 1081843

Lee, Yang, and Chu: Current Domestic Research Trends for Exercise Intervention for Patients with Breast Cancer Undergoing Chemotherapy or Radiotherapy

Abstract

Purpose

Cardiotoxicity following cancer chemotherapy or radiotherapy is an emerging issue for breast cancer patients. The purpose of this study was to analyze the current domestic research trends for exercise intervention for Korean breast cancer patients under chemotherapy or radiotherapy, focused on cardiovascular indices as study outcome measures and to make suggestions for future nursing studies.

Methods

A literature search was done using PubMed, CINAHL and two Korean databases to identify experimental studies reported in Korean or English between 2,000 and 2015. We identified five studies independently reviewed by two reviewers. The quality and risk of bias of the selected studies were assessed by RoBANS criteria.

Results

Tai-chi exercise was used in three studies and aerobic exercise programs or yoga and walking exercise in the remaining studies. Two studies evaluated cardiovascular outcomes and showed positive findings for breast cancer patients. For cardiovascular indices, heart rate and blood pressure were used.

Conclusion

This study showed the need for conducting well-designed experimental studies including clinical cardiovascular outcomes to generate evidence on exercise intervention for cancer therapy-induced cardiotoxicity prevention. Additional studies are warranted to accelerate the potential use of exercise as a nursing intervention for cancer patients under chemotherapy or radiotherapy.

Figures and Tables

Fig. 1

Literature searching flow.

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Fig. 2

Quality of selected studies.

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Table 1

Summary of Selected Studies

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Study Publication journal Study purpose Study design Study subjects (n) Name of intervention
Kim et al.17) Journal of Life Science To evaluate the effects of tai chi exercise on shoulder joint movement and cardiovascular function in elderly breast cancer patients Nonequivalent control group pre-post test design n=40 Tai chi exercise
Kim et al.20) Cancer Nursing To explore the effects of exercise on cardiopulmonary responses and adherence in newly diagnosed breast cancer women. Randomized control group pre-post test design n=41 Moderate-intensity aerobic exercise
Kim & Yang21) The Korean Journal of Physical Education To analyze effects of yoga and walking on pulmonary function, hemoglobin, and platelet patients receiving chemotherapy and radiation therapy after breast cancer surgery. Randomized control group pre-post test design n=24 Yoga and walking program
Eom19) Korean Journal of Women Health Nursing To explore the effects of early Tai Chi program to mastectomy patients on their upper limb functions and for the emotional statement. Nonequivalent control group pre-post test design n=48 Tai chi exercise
Hwang & Kwak18) Journal of Life Science To evaluate the effects of regular Tai Chi exercise to breast cancer patients on MDA, SOD and physical fitness Nonequivalent control group pre-post test design n=40 Tai chi exercise

MDA=Malondialdehyde; SOD=Soperoxide sismutase.

Table 2

Specific Interventions and Outcomes of Selected Studies

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Study Study subject Intervention description Study outcome measures Study results
Kim et al.17) Patients who had undergone mastectomy within 2 months (Exp.: n=20, Cont.: n=20) 12-week Tai chi program
4 times a week, 60 min a day
Shoulder joint movement: flexion, extension, adduction, abduction
Heart rate
Shoulder joint movement, including flexion, extension, adduction and abduction, significantly increased (p<.05) and heart rates decreased after intervention (p<.05).
Kim et al.20) Breast cancer patients (Exp.: n=22, Cont.: n=19) 8-week moderate-intensity aerobic exercise
Once every 2 weeks
Cardiopulmonary responses: resting and maximum heart rates, systolic blood pressure, VO2 peak Intervention group showed significant decreases in resting heart rate and systolic blood pressure (p<.05) and an increase in VO2 peak (p<.001).
Kim & Yang21) Patients receiving chemotherapy and radiation therapy after mastectomy (Exp.: n=12, Cont.: n=12) 10-week Yoga and walking program
Yoga: twice a week
Walking: once a week, 50~60 min a day
Forced vital capacity, forced expiratory volume-1, peak expirtory flow, maximal voluntary ventilation, hemoglobin, platelet Intervention group showed significant increases in forced vital capacity, forced expiratory volume-1, maximal voluntary ventilation (p<.05).
Eom19) Patients who had undergone mastectomy within 3 months (Exp.: n=25, Cont.: n=23) 12-week Tai chi program
Education and group exercise: once a week
Shoulder joint movement: flexion, extension, abduction, internal/external rotation, upper limb function
Emotional status
Shoulder joint movement including flexion, extension, abduction, internal/external rotation and upper limb function significantly increased after intervention (p=.001).
Hwang & Kwak18) Patients who had undergone mastectomy (Exp.: n=20, Cont.: n=20) 12-week Tai chi program
4 times a week, 60 min a day
Physical fitness: muscle strength, flexibility, flexion, extension, adduction, abduction
MDA, SOD
Shoulder flexibility, flexion, extension, adduction, abduction, MDA and SOD significantly increased after intervention (p<.05).

Exp=Experimental group; Con=Control group; MDA=Malondialdehyde; SOD=Soperoxide sismutase.

Notes

This study was supported by a research grant from the College of Nursing, Yonsei University (6-2014-0121).

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