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BLOOD DESTRUCTION DURING EXERCISE : III. EXERCISE AS A BONE MARROW STIMULUS
1Laboratories of The Rockefeller Institute for Medical Research.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Exercise significantly increases reticulocytes and indicates blood destruction in previously sedentary animals. Transfusion or plethora prevents this reticulocyte response, highlighting exercise
Area of Science:
- Hematology
- Exercise Physiology
Background:
- Exercise can induce physiological changes in blood parameters.
- Previous research suggests exercise may increase blood destruction.
Purpose of the Study:
- To investigate the effect of exercise on reticulocyte percentage.
- To explore the relationship between exercise, blood destruction, and hematopoietic tissue efficiency.
Main Methods:
- Observing reticulocyte percentage changes after exercise in sedentary animals.
- Monitoring hemoglobin, plasma-cell ratio, and red blood cell counts.
- Investigating the effects of blood transfusion and induced plethora on exercise-induced reticulocytosis.
Main Results:
- Exercise in sedentary animals led to a definite increase in reticulocyte percentage.
- Concomitant changes in hemoglobin, plasma-cell ratio, and red count supported increased blood destruction.
- Blood transfusion prevented the reticulocyte response, and plethora abolished it during exercise.
Conclusions:
- Exercise stimulates an increase in reticulocytes, indicative of blood destruction.
- Maintaining adequate blood volume (preventing plethora) and potentially replacing destroyed blood is crucial.
- Exercise plays a vital role in maintaining efficient hematopoietic tissue function.
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