Effect of acute interval and continuous aerobic exercises on serum hematopoietic stem cell CD34 and chemokine SDF-1 in overweight women

Cytokines and growth factors plays an important role in increasing the capacity of stem cell proliferation and migration, and recently, attention has also been paid to the role of Physical activity in this regard. The aim of this study was to determine the effect of two types of acute interval and continuous aerobic exercises on serum hematopoietic stem cell CD34 and chemokine SDF-1 in overweight women.

Thirty female overweight students volunteered to participate in the study and then were randomly divided into three equal groups (two experimental and one control group). Experimental groups performed an acute interval (2 minutes 50% and 1 minutes 80% VO2max) and a continuous (60% VO2max) aerobic exercise for 60 minutes on treadmill. The CD34 and SDF-1 indices were measured by ELISA method and the results were extracted using one-way covariance analysis, and LSD post hoc test on statistical significance as p

The acute interval and continuous aerobic exercise increased significantly the stem cells CD34 (p=0.005 & p=0.002, respectively) and the chemokine SDF-1 (p=0.0001) and there is no differences between the effect of two types of exercise on these variables (p>0.05).

The increase in these two indicators following interval and continuous aerobic exercises indicates that not only the implementation of these activities does not have a negative effect on the immune system of the participants, but also could be indication of the activation of the physiological regenerative mechanisms following exercise- induced inflammation.