I'm back. I can't take the "sample set of one" reasoning from JM anymore.
Read this:
___________________________________________________
Effects of stretching before and after exercising on muscle soreness and risk of injury: systematic review
Rob D Herbert, senior lecturer, Michael Gabriel, physiotherapist.
School of Physiotherapy, University of Sydney, PO Box 170, Lidcombe, New South Wales 1825, Australia
Objective: To determine the effects of stretching before and after exercising on muscle soreness after exercise, risk of injury, and athletic performance.
Method: Systematic review.
Data sources: Randomised or quasi-randomised studies identified by searching Medline, Embase, CINAHL, SPORTDiscus, and PEDro, and by recursive checking of bibliographies.
Main outcome measures: Muscle soreness, incidence of injury, athletic performance.
Results: Five studies, all of moderate quality, reported sufficient data on the effects of stretching on muscle soreness to be included in the analysis. Outcomes seemed homogeneous. Stretching produced small and statistically non-significant reductions in muscle soreness. The pooled estimate of reduction in muscle soreness 24 hours after exercising was only 0.9 mm on a 100 mm scale (95% confidence interval -2.6 mm to 4.4 mm). Data from two studies on army recruits in military training show that muscle stretching before exercising does not produce useful reductions in injury risk (pooled hazard ratio 0.95, 0.78 to 1.16).
Conclusions: Stretching before or after exercising does not confer protection from muscle soreness. Stretching before exercising does not seem to confer a practically useful reduction in the risk of injury, but the generality of this finding needs testing. Insufficient research has been done with which to determine the effects of stretching on sporting performance.
__________________________________________________
Note that there were 5 sample sets (not 1 individual's results) used. Stretching before or AFTER DID NOT confer protection from muscle soreness. More importantly they state INSUFFICIENT research has been done on the effects of stretching and performance.
Here is the link if you want to dig deeper:
http://www.bmj.com/cgi/content/full/325/7362/468
BTW, you can find many more studies like this with a little effort.
JM, these are experts, not amateur athletes like yourself. They are not inferring data from a sample set of one or the practices of professional athletes, who BTW are not experts either. I know professional athletes who wear the same underwear for days (or never shave) until they lose. Want to tell us that practice is scientifically validated?
Fanatics close their minds and assume the whole world is just like them. All of you who are attacking this scientifically validated data need to open your minds and at least give it a read. No harm in that, as opposed to the harm caused by telling folks stretching can cure injuries and/or prevent them.
-k-