Altering the biomechanics of training and training schedules may reduce the prevalence of<unk> s. Orthotic insoles have been found to decrease the rate of<unk> s in military recruits, but it is unclear whether this can be extrapolated to the general population or athletes. On the other hand, some athletes have argued that cushioning in shoes actually causes more<unk>  by reducing the body's natural shock-absorbing action, thus increasing the frequency of running injuries. During exercise that applies more<unk>  to the bones, it may help to increase daily calcium (2,000 mg) and vitamin D (800 IU) intake, depending on the individual.
Stress fracture
Shin splints
Ankle fracture
Pseudofracture
Hume fracture
Avulsion fracture
Colles' fracture
Nutcracker fracture