Two possibilities are there.First is exercise-related transient abdominal pain (ETAP) or stitches.Caused by insufficient blood supply to the diaphragm, stress on the ligaments as a result of ‘jogging’ the abdominal organs, or taking in too much water while exercising.
Ask your daughter to avoid distending or bloating your stomach before sport , sip rather than gulp fluids while exercising and avoid soft drinks.
Second possibility is of muscle strain.Apply warm compresses on the abdominal muscles and some muscle relaxant.She can also take some OTC non steroidal anti inflammatory pain reliever like ibuprofen or diclofenac.Also ask her to do some stretching exercises before running and to avoid food atleast half an hour before running.
Hope it helps.If you have any additional queries,then pls post us.
Take care and regards.
Pain in the stomach in runners is a very frequent problem. It may be due to the abdominal wall muscles ("stitch") or the gastrointestinal system.
Dehydration prior to running may lead to gastrointestinal complaints like belching, flatulence, nausea, vomiting, intestinal cramps, and stomachache.
Stitches are sharp pains like cramps that occur during exercise (particularly running), usually near the ribs, that may cause the runner to stop from running.
Avoid eating one to two hours before a workout and maintain hydration. Any workout should be started with a slow warm-up for four to five minutes, followed a very gradual increase in speed. While running, one should take deep breaths. If pain actually starts, stretching, massaging, taking deep breaths may be tried.
However, I would advise that you consult your GP for a complete medical examination of your daughter to rule out any abdominal or other pathology.