I went to the gym over the weekend and couldn't help notice this girl working out on a cardio piece of machinery known as a Precor Eliptical (not sure of the spelling) Unfortunately, I am not a cardio guy and enjoy lifting weights as opposed to what's better for my heart. When I entered, I noticed how fast and how much energy she was expending on that machine. I went to the weight room area and lifted for about an hour and half and started to leave but then I was floored. The same girl I saw pumping wildly on the machine when I came in was at the same level or higher an hour and half later I know, she could have sped up, slowed down or even stopped in that time frame but the sweat built up on her shoulders and back didn't seem to indicate she stopped. Although I am able to throw around a 225 bench for multiple sets (big deal), I am floored at her cardio ability and all in all she is in much better shape that I will ever be in. Any cardio queen's and king's out there?