Serious runners stretch. Stupid runners don't. Stretching reduces recovery time, prevents injury, and allows for other interesting activities. You should always stretch immediately after a run. If you're trying to improve flexibility, you should also stretch a mile (1.5 kilometers) into the run.Research proves that stretching neither reduces recovery time nor prevents injury. The wikipedia article on stretching has some links to studies which demonstrate this, The Lore of Running by Noakes has others. Aside from the evidence (which should always get primacy), the truth is that "serious runners" are the least likely to stretch. Anyone who's spent any time at a local 5k would know that.
The limited epidemiological evidence more clearly addresses the question of injury prevention than its effects on performance. The three RCT in this study that address stretching and injuries fail to demonstrate a protective effect of supervised stretching (3,72,73). The three cohort studies (7,16,32) that find that stretching might prevent injury are small and are of lower methodological quality than the two recent RCT (72,73). Even pooling data from these studies demonstrated no significant protective effect. At the same time, the evidence is not of sufficient strength, quality, and generalizability to recommend altering or eliminating preexercise stretching.In other words, the studies that show benefit are of poor quality, but even so, demonstrate "no significant protective effect," but we are unwilling to say that because of that you should not stretch. I continue to think that were the Null Hypothesis that stretching did not have benefit, these results would be much less equivocal than they are presented as here.
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This is not okay.
posted by kevin-o at 4:14 AM on May 29, 2008 [7 favorites]