Marathons are one of the most celebrated events in the world of athletics, attracting runners of all abilities that come together to cover a long distance.

The training and dedication required for such an event is admirable, but recent research shows that marathon running could be a potential threat to the kidneys. This research may change our understanding of the effects of long-distance running on the human body.

What is a Marathon?

The marathon is a long-distance race of 42.195 kilometers that was first designed as a commemoration of the run of the soldier Pheidippides, who ran from Marathon to Athens in 490 BC.

Today, many marathon races are organized worldwide as it continues to grow in popularity as a sport. Participants push their own limits and surpass themselves, but their effort can have a significant impact on their health.

The Effects of Marathon Running on the Kidneys

The kidneys are two small organs located in the lower back that are responsible for filtering waste substances from the blood. They also regulate the balance of fluids in the body and help to maintain a healthy blood pressure.

The physical exertion of running a marathon puts the kidneys under enormous pressure, leading to decreased kidney function and significant physiological damage.

Several studies have shown that marathon running, particularly in untrained individuals, increases the levels of creatinine and other markers of kidney damage in the blood.

Creatinine is a waste product produced by muscle metabolism that is filtered out of the blood by the kidneys. However, when the kidneys are under significant stress, the creatinine level in the blood can increase, indicating that they are not functioning correctly.

Furthermore, dehydration, muscle damage, and changes in blood flow pressure during a marathon can lead to further kidney distress. This is especially true for runners who have pre-existing health conditions such as hypertension or diabetes.

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The Risks of Marathon Running for Those with Kidney Problems

Several studies have found that marathon running can increase the risk of kidney damage in individuals with pre-existing kidney disease or those who have had a kidney transplant.

These individuals are already at an increased risk of kidney damage and are told to avoid activities that could exacerbate their condition. However, many such individuals are unaware of the potential risks associated with marathon running and may, therefore, participate in such events.

One study found that 82.1% of kidney transplant patients who engaged in marathon running experienced measurable decreases in kidney function.

The decrease in kidney function continued beyond the recovery of other organs, such as the heart and lungs, indicating that the kidneys are particularly vulnerable to the stress of marathon running.

What Can Runners Do?

Marathon runners who are concerned about kidney damage can take several measures to protect their kidneys. First, they can stay hydrated before, during, and after the race.

This can help ensure that their kidneys are supplied with enough blood and that waste products are adequately filtered out of the blood. Runners can also avoid over-training and ensuring their body is used to the exertion required for such an endeavor. Finally, they can get their kidney function checked regularly.

Anyone who experiences symptoms such as fatigue, muscle cramps, or decreased urine output should seek medical attention immediately to investigate further.

Conclusion

Marathon running is an exceptional achievement and something that many individuals dream of accomplishing. However, the potential cost of such an accomplishment may be consequences to the health of the kidneys.

The kidneys are a vital organ, and it is our responsibility to protect them. Marathon runners should be educated on the potential risks associated with their activity so that they can take appropriate measures to protect their kidneys while still achieving their dreams.