Anybody here uses a dual-action stationary bike?

Hello all: Anybody here uses a dual-action stationary exercise bike to speed up the metabolic rate and lose weight? I read that those kinds of bikes (the dual-action bikes) speed up the metabolism cuz they work the arms as well as the legs at the same time. It even builds upper-body muscles. Can anybody here comment about dual-action bikes?

Thanx all

worldgod

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"The dictatorship of the proletariat is a stubborn struggle, bloody and bloodless, violent and peaceful, military and economic, educational and administrative against the forces and traditions of the old society." -Lenin