Why athletes more often wear compression during long distances

Herzog Medical
August 11, 2026

During a long run, half marathon, or hike, the strain on your body changes constantly. In the beginning, every step feels light and controlled, but as the miles add up, muscles and tendons have to work harder to perform the same movement smoothly. You notice this especially in the lower legs: the calves become heavier, the ankles less stable, and the tendons more susceptible to overuse. That is why you see many athletes wearing compression during marathons, trail runs, and long hikes.

At Herzog, this need is reflected in the development of the Herzog PRO Compression Socks, which are specifically designed to support the calf and ankle during prolonged exercise. They are intended to reduce muscle vibration and support blood circulation, so that your body can better handle the strain of a long distance. This application did not come out of nowhere, but from over twenty years of experience with compression technology in sports and healthcare.

What happens in your lower legs during long distances?

The longer you're on the go, the more your muscles have to compensate for fatigue. The calf muscle, which contracts with every step to propel you forward, experiences small vibrations that accumulate as the distance grows. This vibrating costs extra energy and can contribute to a tired, heavy feeling in the calves. You'll barely notice this during a short run of a few kilometers, but during a half marathon or longer, it becomes increasingly noticeable. It is precisely in this phase that the first signs of overuse often appear, such as stiffness or a feeling of pressure around the tendon.

In addition to muscle fatigue, blood circulation plays a role. During exercise, blood must be pumped upwards from the lower legs, against gravity. Muscle contractions help with this, but as muscles fatigue, that pump function becomes less effective. The result can be a heavy or swollen feeling in the ankles and feet, especially towards the end of a long distance. That feeling of heaviness often starts in the last few kilometers and is still clearly noticeable in many runners after a marathon, when the lower legs feel tight and full.

This combination of muscle fatigue and reduced blood circulation makes the lower legs more vulnerable to injuries. Consider shin splints, where the shinbone membrane becomes irritated by repeated stress, or Achilles tendon problems that arise when the calf isn't working as well. Also, calf problemsin a broader sense are more common during long distances than during shorter training sessions. The body continues to function, but with less margin for errors in running technique or surface, which increases the risk of overuse. Those who ignore these signals run the risk of a minor overuse developing into an injury that requires weeks of recovery.

How does compression support your lower legs during sports?

Compression clothing works by applying a light, controlled pressure to the calf and ankle. This pressure helps keep the muscle slightly more firmly in place, which reduces vibration with each push-off. For many athletes, this feels like a more stable, less wobbly sensation in the calf, especially at times when the muscles are already becoming fatigued. This effect is explained in more detail on the page about the effects of compression, where you can read how pressure and blood circulation are related during exertion.

With Herzog compression socks, that pressure is not built up randomly, but is distributed in a controlled, gradual manner: tightest at the bottom of the ankle, gradually decreasing towards the knee. This is a principle that originally comes from medical compression technology and is applied in sports variants. A standard sock without that build-up often applies the same pressure everywhere, which has less effect on the blood flow back to the heart. The difference therefore is not in the idea of compression itself, but in how precisely that pressure is built up.

To make that build-up work properly, Herzog PRO Compression Socks and Herzog PRO Compression Tubes are individually measured at six and four measurement points. As a result, the sock fits the shape of your calf and ankle, instead of an average size. That measurement is also the reason why these products, together with their MDR mark, are used by both athletes and healthcare professionals. For people who deal with recurring calf complaints, that precise distinction can make a noticeable difference in comfort during long distances.

Products in this blog

PRO Compression Tubes Yellow

€45,95

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Products in this blog

PRO Compression Socks Black

€57,95

View this product

For which sports and situations is compression during exercise beneficial?

Compression is not only worn during running. It also plays a role in long-distance walkingand trail runningon uneven terrain, where the calf and ankle experience similar strain. In trail running, the terrain constantly changes, meaning the ankle needs extra stabilization in addition to the support already provided by the calf muscle. For long hikes, it is primarily the duration of the exertion that matters, even if the intensity per step is lower than for running or trail running. Also, during long, strenuous cycling rides, a similar type of calf fatigue plays a role, even though the form of movement is different from running.

Whether compression is beneficial depends on the situation in which you exercise. For a short five-kilometer run, the added value is limited because muscles and circulation are hardly stressed. As soon as the distance increases to fifteen kilometers or more, many athletes notice that the calf feels less fatigued when compression is worn. Also, in warm weather, when the body already has extra difficulty regulating blood circulation, the supportive effect of compression can feel pleasant during and after exercise.

In addition to the exercise itself, the period afterwards also plays a role. Immediately after a long distance, muscles and the vascular system are still actively recovering, even though the movement has stopped. Many athletes choose to keep compression on in the hours after a marathon, trail run, or long walk, precisely because the body is still busy removing the accumulated stress. The experience Herzog has gained over the past twenty years in both sports and healthcare translates into socks that are tailored to this phase of exertion and recovery.

Frequently asked questions

Does compression really help during running?

Compression can contribute to a more stable feeling in the calf and supports blood circulation during prolonged exertion. It is not a miracle cure, but many athletes experience less vibration and a lighter feeling in their lower legs during long distances. The effect varies per person and per type of exertion.

When should I put on compression, before or after exercise?

Some athletes wear compression during exercise, while others only put it on afterwards to support recovery. Both applications are common and depend on personal preference and the type of activity. If in doubt, it is advisable to start during shorter training sessions to experience what feels comfortable.

Is compression suitable for existing conditions such as varicose veins or swollen ankles?

For conditions such as varicose veins, edema, or thrombosis, it is important to first consult a general practitioner or specialist before using compression during sports. They can assess what degree of pressure and what type of stocking is appropriate. Self-administering compression without such an assessment is not recommended for these conditions.

Frequently Asked Questions

Does compression really help when running?

Compression can contribute to a more stable feeling in the calf and support circulation during prolonged exercise. It is not a miracle solution, but many athletes experience less vibration and lighter-feeling lower legs over long distances. The effect varies by person and type of exercise.

Should I put on compression before or after sport?

Some athletes wear compression during exercise, while others put it on afterwards to support recovery. Both uses are common and depend on personal preference and the type of activity. If you are unsure, try it during shorter workouts first to see what feels comfortable.

Is compression suitable for existing conditions such as varicose veins or swollen ankles?

If you have conditions such as varicose veins, oedema or thrombosis, consult a doctor or specialist before using compression during sport. They can assess the appropriate level of pressure and type of sock. Using compression without that assessment is not recommended for these conditions.

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