The rectus abdominis muscle functions as part of the body's core muscles that help move the trunk between the ribs and the pelvis. Runners who overuse or improperly condition this muscle are at risk of injury, which could lead to a setback in training or physical activity. Fortunately, most strains of the rectus abdominis muscle are preventable and treatable with medical care.
Features
People who run frequently or go on long runs are more likely to experience a strain of the rectus abdominis muscle than those who run short or only occasionally. In addition to soreness in the muscle, runners might experience additional symptoms including inflammation and increased pain when contracting the rectus abdominis, such as when doing a sit-up. The Sports Injury Clinic says a sudden or sharp pain in the rectus abdominis could indicate a rupture.
Identification
General physicians or specialists such as sports medicine doctors identify strains in the rectus abdominis by taking a health history and performing a physical exam. The doctor might ask the patient to assume various positions and note which movements cause pain or discomfort. MayoClinic.com says in some cases, physicians might run tests such as an ultrasound or magnetic resonance imaging scan to diagnose the extent of the strain.
Causes
Most muscle strains, including strains of the rectus abdominis, result from overuse. Performing long, intense runs or failing to warm up and cool down before a run could result in a strain to the rectus abdominis. MayoClinic.com says poor form when running or running too fast could also cause a strain.
Treatments
For mild strains of the rectus abdominis, doctors generally recommend taking anti-inflammatory medications such as ibuprofen or naproxen sodium to reduce pain and inflammation. Moderate strains might require injection of corticosteroids followed by up to two weeks of rest. Runners with severe strains or ruptures of the muscle might need to undergo ultrasound or laser treatment or surgical repair followed by physical therapy to strengthen the muscle.
Prevention
New runners should ease into a fitness program under a doctor's approval to avoid overworking the rectus abdominis. Before a run, take the time to warm up and allow time for a cool-down afterward. MayoClinic.com suggests practicing muscle strengthening exercises such as sit-ups to condition the rectus abdominis, which can help prevent strains.
