Exercise Myths and Facts
Always stretch before you work out.
Several studies over the past few years have shown that what’s called static stretching— as in when you bend over and touch your toes for the count of 10 — actually makes you weaker and less stable in your workout.
Warm up with easy, no-weight sets of the exercises in your routine. See James Haskell recommended Warm up routine:
A recent study in the American Journal of Strength and Conditioning Research found that when athletes warmed up after stretching and then performed a test where they threw a heavy medicine ball, the correct warm-up procedure completely eliminated the weakening effects of the stretching process.