Basic Knowledge
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Beginner Running? Just Keep Your Mouth Shut!
Many people ask when they start running: "How fast should I go?" or "What should my heart rate be?" Actually, if you’re…
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Foot Blisters
Foot blisters are mainly caused by friction combined with moisture. When the foot repeatedly slides inside the shoe, so…
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Patellofemoral pain syndrome (Runner’s knee)
Patellofemoral pain syndrome, often called “runner’s knee,” occurs when the patella does not glide smoothly along the f…
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Knee bursitis (localized swelling and warmth)
Bursae are small fluid‑filled sacs around the joint, acting like “lubricating cushions” to reduce friction between tend…
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Quadriceps strain
The quadriceps, located at the front of the thigh, are responsible for extending the knee and controlling deceleration …
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Hip flexor strain
The hip flexor muscles (mainly including the iliopsoas) are responsible for lifting the thigh forward, playing a key ro…
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