SMRs and AMRs

Tuesday, April 09, 2013

Rethinking patterns of exercise

Reasons Not to Stretch

By GRETCHEN REYNOLDS, NYT

Most of us grew up hearing that we should warm up with a stretch. Strike and hold a pose, such as touching your toes, for 30 seconds or more, we were told, and you’ll be looser, stronger and injury-proof.

But anyone who follows fitness science — or this column — knows that in recent years a variety of experiments have undermined that idea. Instead, researchers have discovered, this so-called static stretching can lessen jumpers’ heights and sprinters’ speeds, without substantially reducing people’s chances of hurting themselves.

Now, two new studies are giving us additional reasons not to stretch.

One, a study being published this month in The Journal of Strength and Conditioning Research, concluded that if you stretch before you lift weights, you may find yourself feeling weaker and wobblier than you expect during your workout. Those findings join those of another new study from Croatia, a bogglingly comprehensive re-analysis of data from earlier experiments that was published in The Scandinavian Journal of Medicine and Science in Sports. Together, the studies augment a growing scientific consensus that pre-exercise stretching is generally unnecessary and likely counterproductive.

(More here.)

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