There was a guy in his 50's at my old gym who used to use these. Not sure if he got gains from them or not. Im not sure i believe some rubber bands provided a gain of 40 lbs on the bench. I would be willing to bet it was more of the barbell press than the bands that created this strength gain. Ive seen them all over the place, but i believe their the ones women use for pilates and stuff. Not sure if they are the same thing.



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