Stretching Before Exercise

Question:

I am writing in response to Shonna Porter's answer in Order of Exercises in Group Ex. Research completed in the last 15 years has determined that stretching is not appropriate before a workout. The exception being dynamic stretches incorporated into the warm up. The purpose of the warm up is to prepare your body for the high intensity workout, increasing blood flow, range of motion, increased heart rate, etc. The real question was probably, "Should I do range of motion exercises (i.e., shoulder mobility, etc) prior to rehearsal of cardio moves (pulse raising exercises)?" The answer is that it all depends on the increase in the bpm and safety of the movement with higher bpm. For instance, I may do shoulder rolls, arms reaches, chest expansion and retraction right at the beginning at 132 bpm before knee raises and hamstring curls. But pull and push moves can be included with the hamstring curls etc as we get up toward 138 bpm and ready to start our cardio.

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