Good work out while siting on your sofa
I couldn't afford the gym, so I decided to invest in the Isokinetics pedal exerciser.  It really is surprising effective. I worked up a sweat on multiple occasions.  The problem, however, is being able to maintain an even pedaling action. After a few weeks of this, I did develop a pain in my knee due to uneven pedaling.  Eventually, I did get a gym membership and started with spinning classes, which I discovered were much more effective and induced fewer injuries than the Pedal Exerciser did.
Rating: 3 stars