I've always heard hardcore lifters saying that resistance is not the same as weight. Bascially that 100lb of resistance is not equal to 100lbs of weight. Imagine a bowflex vs a cable machine. I'd ...
While ellipticals offer stationary movement with low impact on the knees, they also seem to offer burning off insane amounts of calories when compared to equal time/work on a treadmill. Same brand ...
Do the principles behind the shakeweight and related products work? (a lot of quick, short impulse muscle contractions)
I got a shakeweight as a gag gift for Christmas. I actually tried it and it does feel like you get a work out from the instructional DVD. I'm curious if the principles behind the product are sound? ...