Article: Nice-To-Know Facts About Stretching, Flexibility, And Warming Up

1. NOT THE SAME. Some people believe that stretching and warming up are more or less the same. They’re not. Warming up is designed to prepare an individual for the demands of the physical activity that follows. As such, a few minutes of engaging in low-intensity whole-body exercise (e.g., jogging in place) can be an appropriate warm-up. Warming up should always precede stretching because stretching cold muscles can result in an injury to the affected musculature.

via Fitness.com http://www.fitness.com/articles/1575/nice_to_know_facts_about_stretching_flexibility_and_warming_up.php

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