The conbini fitness is hot for Tokyo girls

Taking its name from the Japanese word for convenience store, these health outlets offer coin-op workout stations for impulse exercising.

The contraptions' foot pads churn up and down and back and forth at up to 1,560 times per minute. (One 500 yen coin — about $4.10 — buys 10 minutes.) Maintaining your balance while you shake supposedly has an aerobic effect, though users never break a sweat.

And in case girls are worried about pervs ogling their jiggle, many of the clubs are ladies-only or feature privacy partitions