Medial tibial stress syndrome, tibial periostitis or shin splints is a common injury that affects athletes who engage in running sports or basic activities such as cross country, football, or hiking. This condition is characterized by pain in the lower part of the leg between the knee and the ankle. MTSS injuries are caused by repeated trauma to the connective muscle tissue surrounding the tibia. Ignoring this injury may result in a more serious condition such as a stress fracture of the bones. Shin splints, known as medial tibial stress syndrome (MTSS), can usually be attributed to overloading the muscles of the lower extremities or to biomechanical irregularities. Muscle imbalance, including weak core muscles, can cause lower-extremity injuries, and inflexibility and tightness of the gastrocnemius, soleus, and plantar muscles (commonly the flexor digitorum longus) may contribute, as well.
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