Strength training following hematopoietic stem cell transplantation

Abstract

Background: Patients receiving high-dose chemotherapy and hematopoietic stem cell transplantation (HSCT) experience considerable reductions in physical activity and deterioration of their health status.

Objective: The purpose of this pilot study was to test the effects of strength training compared with usual activity on physical activity, muscle strength, fatigue, health status perceptions, and quality of life following HSCT.

Methods: Nineteen subjects were randomized to the exercise or control group. Moderate-intensity strength training began following discharge from the hospital. Dependent variables included physical activity, muscle strength, fatigue, health status perceptions, and quality of life. Variables were measured prior to admission to the hospital for HSCT, day 8 following HSCT, and 6 weeks following discharge from the hospital.

Results: Significant time effects were noted for many variables with anticipated declines in physical activity, muscle strength, fatigue, and health status perceptions immediately after HSCT with subsequent improvements 6 weeks following hospital discharge. One group effect was noted with subjects in the exercise group reporting less fatigue than subjects in the control group. Although no significant interactions were detected, the trends suggest that the exercise group may be more physically active following the intervention compared with the usual-activity group.

Conclusions: This study demonstrates the potential positive effects of strength training on physical activity, fatigue, and quality of life in people receiving high-dose chemotherapy and HSCT.

Implications for practice: Preliminary evidence is provided for using strength training to enhance early recovery following HSCT. Elastic resistance bands are easy to use and relatively inexpensive.

© 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins

Figures

Figure 1

Real-time Fatigue Data for the Strength Training (n = 9) and Usual Activity Groups (n = 10). Time 1: Missing Data Strength Training: Two subjects were not included in the analysis due to inability to collect 5 full days of continuous data. One subject did not complete 7 of the required 9 assessments. Control: One subject did not complete 7 of the required 9 assessments. Time 2 Missing Data Strength Training: One subject did not complete 7 of the required 9 assessments. One subject was unable to provide self-report assessments because of acuity of illness. Time 3 Missing Data Strength Training: One patient expired. Control: One patient expired.

Figure 2

Strength Training Frequency (n = 8).

Figure 3

Expected Data Trends for Variables.

Figure 4

Data trends for physical activity, fatigue, and quality of life.