Lots of people stretch before exercise. When I first started formal exercise back in the early 1990's, you did a little warm-up, then you stretched. It was the done thing. By 'warm-up,' I mean a little bit of movement, and by 'stretching,' I mean the static kind--you assume a position (like bending to touch your toes) and hold there for 20-30 seconds. Stretching cold muscles was always a no-no, but since I'm usually moving quite briskly so I can get to class EARLY, I consider myself 'warm.' Yes, I play the hurry-up-and-wait game.
However, I recently read a few articles casting aspersions on this sacred cow of pre-workout stretching.
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| memecruch.com |
Well. This rocked my world. Clearly. So I did a little exhaustive internet researchtm.
I'm a huge fan of stretching and there are some very good reasons for it--maybe the best one being the Dr. Wayne Westcott study that indicated people see 20% greater strength gains for having stretched muscles after working them.
But that's post-workout stretching, which is a different animal from the I'm-just-hanging-out-early-at-the-barre kind. A few studies (here and here) have indicated that pre-workout or -competition stretching actually resulted in reduced performance. Athletes who stretched beforehand showed a temporary decrease in strength. The whys of this aren't really known, but study authors suggest the loosening nature of stretching made the athletes wobblier. That's a totally official scientific term, by the way.
It should be noted that holding stretches for more than 45 seconds is what seemed to inhibit strength--anything less than that didn't seem to affect it significantly.
There is a fair bit of conjecture about stretching in general. It is kind of toughie to research. As noted in one article I read, you can hardly do a randomized/double-blind study on stretching. People will figure out if they're in the stretching group or not, you know? I found some articles (like this one) that seemed to suggest stretching at any point in a workout might be of little benefit, but I can't get behind that. Stretching does restore optimal length to muscle, if only temporarily. The jury seems to be out as to whether or not it reduces delayed-onset muscle soreness or helps prevent injury, but it certainly feels good and helps with lalas. I should mention that no barre class I have ever taken has employed long-duration static stretching as part of the warm-up. The stretches always follow working the muscle to shaking, burning bliss.
So should you completely avoid the pre-workout stretch? From the former study, "We conclude that the usage of SS [static stretching] as the sole activity during warm-up routine should generally be avoided."
Well, harumph. I guess this leaves me with taking selfies to fill the time.
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I'm a huge fan of stretching and there are some very good reasons for it--maybe the best one being the Dr. Wayne Westcott study that indicated people see 20% greater strength gains for having stretched muscles after working them.
But that's post-workout stretching, which is a different animal from the I'm-just-hanging-out-early-at-the-barre kind. A few studies (here and here) have indicated that pre-workout or -competition stretching actually resulted in reduced performance. Athletes who stretched beforehand showed a temporary decrease in strength. The whys of this aren't really known, but study authors suggest the loosening nature of stretching made the athletes wobblier. That's a totally official scientific term, by the way.
It should be noted that holding stretches for more than 45 seconds is what seemed to inhibit strength--anything less than that didn't seem to affect it significantly.
There is a fair bit of conjecture about stretching in general. It is kind of toughie to research. As noted in one article I read, you can hardly do a randomized/double-blind study on stretching. People will figure out if they're in the stretching group or not, you know? I found some articles (like this one) that seemed to suggest stretching at any point in a workout might be of little benefit, but I can't get behind that. Stretching does restore optimal length to muscle, if only temporarily. The jury seems to be out as to whether or not it reduces delayed-onset muscle soreness or helps prevent injury, but it certainly feels good and helps with lalas. I should mention that no barre class I have ever taken has employed long-duration static stretching as part of the warm-up. The stretches always follow working the muscle to shaking, burning bliss.
So should you completely avoid the pre-workout stretch? From the former study, "We conclude that the usage of SS [static stretching] as the sole activity during warm-up routine should generally be avoided."
Well, harumph. I guess this leaves me with taking selfies to fill the time.
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