Core Synergistics uses ab work, lower back work and some leg and arm work, many times at the same time (synergy) to work the core. It is a grueling workout that made me pour sweat. I am coming down with a cold, but given tha my blog has been empty, I went for the workout. I completed most of it and tried the bonus exercises. However I am exhausted and headachey now, and so i don't recommend doing this or any other P90x routine with a cold. I may have to take another break after today.
Avg HR = 131 bpm (this includes before and after stretches, I would say I was in the mid to upper 140s on avg during the workout)
Peak HR = 165 bpm
Calories Burned = 723 (as you can see, a little tougher than Kenpo, not as tough as plyometrics)
Hey I totally agree! I tried to get Core Synergistics done last night but I had a monster headache and only made it half way through:( I'm always peaking my HR in Plyo and Core Syn so I think I'll take half of the 723:)
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