The debate over the benefits of stretching has raged among runners for decades.



To investigate the effect of stretching on running injuries, researchers divided more than 2,000 runners into two groups. One group stretched the quadriceps, hamstrings and calf muscles for three to five minutes before starting their run; the other group didn't stretch. About 1,400 of the runners completed the study and were included in the final results.



"Over a period of three months, it did not make any difference if you stretched or didn't stretch before a run," said lead study author Dr. Daniel Pereles, director of sports medicine at Montgomery Orthopaedics in Kensington, Md., and an assistant clinical professor at George Washington University.



The study was to be presented Feb. 18 at the American Academy of Orthopaedic Surgeons' annual meeting in San Diego.



continued at USAToday.com>>

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