Immune response to changes in training intensity and volume in runners

J S Kajiura1, J D MacDougall, P B Ernst

  • 1Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada.

Summary

High-intensity running transiently decreases CD4+ lymphocytes and the CD4/CD8 ratio in runners. Training intensity, not volume, appears to drive this reduction, with training order influencing responses.

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