Inflammation due to repetitive stress of the broad proximal portion of any of the musculotendinous units originating from the tibia.
Symptoms of overuse injury are precipitated by initiation of training, an increase in training intensity or a change in surface or equipment. The mechanism for overuse injury is overload of forces on the muscle, tendon, or bone, which leads to an inflammatory reaction.

Shin Splints : Initial Diagnosis and Management

History and physical examination for shin splints.
Rest of the affected muscle-tendon bone unit
Use of crutches, bracing or casts as needed
NSAIDs may be beneficial
Adults – 200 to 400 milligrams (mg) every four to six hours as needed for up to 2 weeks. Example: Ibuprofen
Take tablet or capsule forms of these medicines with a full glass (8 ounces) of water.
Do not lie down for about 15 to 30 minutes after taking the medicine. This helps to prevent irritation that may lead to trouble in swallowing.
To lessen stomach upset, these medicines should be taken with food or an antacid for shin splints.
Encourage active range of motion.
Appropriate restrictions of activity.

Rest is individualized depending upon severity for shin splints
Immobilization should be utilized if simple weight bearing (walking) is painful.
The duration of rest varies from 1-2 days for mild shin splints to several months for severe stress fractures.
Ice for 10 to 15 mins with hourly reapplication.
Elevate leg frequently with compressive wraps.
Slow and sustained active stretches when no pain is present

Any limitations that affect strength, range of movement, and efficiency of feet, legs, lower back and pelvic girdle.
Slightly limited mobility of joints, muscular weakness, or other musculo-skeletal defects that may prevent moderate marching, climbing, timed walking, or prolonged effect.
Defects or impairments that require significant restriction of use to shin splints.