Comparison of the Effect of Two Types of Continuous and Discontinuous Aerobic Exercise on Patients' Stem Cell Mobilization before Autologous Hematopoietic Stem Cell Transplantation
Background: Transplant success largely depends on the number of hematopoietic stem cells. The release of catecholamines following exercise can, as a treatment in addition to medication, affect the mobilization of stem cells from the bone marrow into the peripheral blood. The aim of the present study is to compare two types of aerobic exercise on stem cell mobilization before autologous transplantation.
Materials and Methods: In a quasi-experimental applied study, 60 patients in the age range of 22-69 years referred to Taleghani Hospital were randomly selected and assigned into 3 groups of 20 members (continuous aerobic, discontinuous aerobic and control group). Aerobic exercise program was performed for 7 consecutive days of mobilization period including walking on a treadmill (according to the patient's ability) continuously and discontinuously for 30 minutes in the morning and afternoon. Blood samples were taken the morning before and after mobilization and the CD34 and MNC levels were counted as absolute. Chi-square test, paired t-test, analysis of covariance (ANCOA) and multiple comparison test were used for statistical analysis. All analyses were considered significant at p ≤ 0.
Results: Moderate-intensity continuous and discontinuous aerobic activity increases the number of CD34 and MNC cells. A comparison between continuous and discontinuous aerobic activity showed an increase in the amount of these cells. The continuous aerobic activity group was found to have a statistically significant increase compared to the discontinuous group (P≤0.05).
Conclusion: Moderate intensity continuous and discontinuous aerobic exercise significantly increased hematopoietic stem cells. However, this increase was greater as a result of continuous aerobic exercise than discontinuous exercise. Regarding the potential role of these cells in transplantation, they could possibly help the transplant process.
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