[Boothroid]

Lifting weights is different - the muscle consumes calories just being there. Also call me a masochist, but I love lifting weights - its a physical rush, a challenge, allows me to work off frustrations, and like Arnie I enjoy feeling pumped. I can get in and out of the gym within an hour having hammered my muscles plenty. Do that 3 or 4 times a week and you'll keep yourself strong and young into old age. You should only get aches and pains if you are doing something wrong or have an underlying health issue - and even if you do, doctors still almost always recommend weight bearing exercise.