Determination of reference ranges of blood biochemical markers for track and field athletes considering specialization and preparation period

The analysis of blood biochemistry data in high-performance sports is necessary to calculate reference ranges under the influence of physical activity. The athletes of the national team of the Republic of Belarus and the nearest reserve were studied. Reference ranges of some biochemical and hematological blood parameters for athletes have been determined. The ranges of creatine kinase activity, the upper limit of the ranges of aspartate aminotransferase activity, and the lower limit of hemoglobin and hematocrit indicators have the greatest variability. In track and field athletes in long-distance running, they are higher compared to the clinical norm. The reference ranges of alanine aminotransferase activity, glucose, urea, and triglyceride concentrations have a narrower range compared to the clinical norm.

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