what does it mean when your legs feel heavy when you run?
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Hydration is critical during long runs. When you lose fluid through sweat and you don't drink enough to help offset this, your blood volume can actually become thicker. Your body has to work harder to pump this blood. You might feel like your legs are more tired than usual or the run just feels harder.
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Another possible source of your symptoms is irritation of the bladder while running. There are several proposed mechanisms for this; it is thought that the walls of the bladder may slap each other during the impact of running. This may cause blood in the urine (this may be microscopic) which can be irritating.
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It tends to occur in runners who are out of shape or in conditioned runners during intense workouts. One theory regarding this pain is spasm in the diaphragm due to decreases oxygen; it may also be due to irritation of the ligaments supporting the liver.
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Wearing ankle weights while running or even walking, increases your risk of injury. By increasing the weight of your legs with weights, you are increasing the stress on all of your joints especially your knees, hips, and ankles.
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If you have CVI, your ankles may swell and your calves may feel tight. Your legs may also feel heavy, tired, restless, or achy. You may feel pain while walking or shortly after stopping. CVI may be associated with varicose veins.
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Being aware of the risk factors for a blood clot can help you know if leg pain is a cramp or something more serious. If you feel a pain in your leg, it's likely a cramp or a pulled muscle. But it could be a much more serious condition: blood clots of deep vein thrombosis, also called DVT.
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The medical literature on runner's belly suggests that it's caused by the mechanics of running itself, as well as dietary and hormonal factors. When you're running for an extended period of time, the blood flow that's normally directed to your digestive system is diverted to your cardiovascular system.
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Feeling heaviness in the chest can result from various mental and physical health conditions. People often associate a heavy feeling in the chest with heart problems, but this discomfort can be a sign of anxiety or depression.
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Your doctor may recommend DVT compression stockings to reduce swelling and improve blood flow. Here's what you need to know. People with vein-related conditions may experience heavy legs, swollen ankles, and leg cramps. If you have these symptoms, compression stockings might…
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['You have new aches and pains. If you notice that your ankles, knees or hips get more achy after a run, it might be time to get a new pair of shoes. ... ', 'Your feet get extra sore after a run. ... ', 'The treads are worn out. ... ', 'The midsole feels tough. ... ', 'You keep getting blisters or brush burn.']
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When your heart does not pump enough oxygen-rich blood to major organs and muscles, you become tired and your legs may feel weak. Swelling in your ankles, legs and abdomen; weight gain. When your kidneys don't filter enough blood, your body holds onto extra fluid and water.
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You're overexerting yourself Although overexertion is common in group exercise classes and team training sessions, it can happen anywhere, anytime. Pushing too hard during your workout can cause your blood pressure to drop or result in dehydration. This can leave you feeling lightheaded, dizzy, or faint.
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The muscle weakness that you are feeling can be directly linked to MS because the damage to your nerves can disrupt signals to the muscles. This nerve damage makes it hard to move your muscles and leads to a heavy feeling in your legs (or other areas of your body).
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After running Moving your body up and down can stir up your digestive system, causing you to have to go to the bathroom more often. You may also experience cramping, gas, and acid reflux. This happens partly because your blood flow is redirected to your legs instead of your digestive system.
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 While PAD can occur anywhere, it most often affects the legs. Without enough blood circulating, your legs can feel tired, crampy, and achy. These symptoms are one of the first signs of PAD. The same things that cause fatty buildup in your other arteries cause them in your legs as well.
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Poor circulation. Your legs may feel tired or fatigued if your blood isn't circulating through your body properly. Poor circulation often affects the lower part of your body since it's harder for blood to flow upward toward your heart. Sometimes blood can collect in your legs, ankles, and feet.
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Calf pain is often caused by excessive strain based on too much training, the running distance being increased too quickly, or a change of running style. Possible results are aching muscles, hardening of the calves, cramps, and pulled muscles.