Jayne be careful. I used to teach bodypump back in my fitness days and i found it required so much energy (But then i DID lift HEAVY weights as i was superfit then).. i found i needed so much more carbs in me to sustain my energy for teaching it. i had been thinking about doing it again as i still have my dvds from when i used to teach and a pump bar at home but i have been scared to do it on this diet as im scared i will just be TOTALLY shattered after it. my workouts with my PT are mostly weights with cardio intervals and i know i feel totally drained and exhausted for 2 days after, and i know its just cos my calories are SO low. How do you feel after doing it?? let me know how you feel the next few days. am also a bit scared to do it as i havent done it 18 months