11 May 2025
Lina Sailer
Physical activity has far-reaching effects on our bodies, and one of the most fascinating areas it affects is our blood count. The relationship between regular physical activity and changes in blood values is both complex and fascinating. In this article, we delve into the world of blood values and explore how exercise not only strengthens muscles, but also has profound effects on various parameters of our blood.
One of the most noticeable effects of regular exercise is the change in the number of erythrocytes, also known as red blood cells. Erythrocytes are responsible for transporting oxygen to the cells and tissues of our body. Endurance sports such as running or cycling increase the demand for oxygen, to which the body responds with an increased production of erythrocytes. This increase helps to optimize the oxygen supply during training.
Another important parameter that is influenced by sporting activity is the haematocrit. This indicates the ratio of cell components in the blood, in particular the proportion of red blood cells. During regular training, the haematocrit value can rise as the body tries to cover the increased oxygen demand. An optimal haematocrit value is important to ensure an efficient oxygen supply and increase performance.
In addition to the red blood cells, the blood plasma and its components play an important role. Physical activity increases the need for nutrients and oxygen, which leads to an adjustment in the composition of the blood plasma. This is particularly important in endurance sports, where an efficient supply of nutrients to the muscles is required over a longer period of time.
Sporting activity can also influence inflammatory markers in the blood. While intense exercise can lead to a temporary increase in inflammatory markers, regular moderate exercise helps to reduce chronic inflammation. This effect is important because chronic inflammation is associated with various diseases and exercise can therefore play a preventive role.
The way our body processes glucose is also influenced by physical activity. Regular exercise improves insulin sensitivity, i.e. the cells react more efficiently to insulin and glucose is better absorbed. This contributes to the stability of blood sugar levels and can reduce the risk of type 2 diabetes.
Overall, it is clear that sport goes far beyond strengthening the muscles - it has an effect on numerous parameters in the blood. The fascinating changes in blood values, from erythrocytes and haematocrit to inflammation markers, illustrate that exercise has a holistic influence on our health. Regular physical activity is therefore crucial not only for fitness, but also for blood health.
