Hey guys! Not long ago I have signed up for zumbaclasses and training, and I really like it. This sport really shapesyou up, and the cardio is beastful. My question is the following. Ijust can not run for long – 3-5 minutes and I am exhausted, justcan't breath and feel pain in the liver, and so on. All in all –terrible runner. But at zumba we move like crazy and do lots ofdancing movements. We don't run, but do a lot of moving. Thistraining kills me as well, but I last 1 hours. Why is thisdifference?