Shin-splints is most common with athletes who made training errors, especially when they overload or when they run too fast for their potential. This injury can also be related to changes in the training program, such as an increase in distance, intensity and duration.[5] (A1) Running on a hard or uneven surface and bad running shoes (like a poor shock absorbing capacity) could be one of the factors related to the casualty. Biomechanical abnormalities as foot arch abnormalities, hyperpronation of the foot, unequal leg length,..[6] (D) are the most frequently mentioned intrinsic factors.