Explosive moves like these are the way forward if you want to target those big muscle groups and get the heart pumping.
If you give this a go please let me know. Do you feel sufficiently challenged? (it doesn't sound like a walk in the park)
I'm off to have a bubble bath, with a cup of tea and to possibly use a face pack that I've had in the cabinet for 3 months...Ooooh a spot of pampering. Lovely.