Hi,
I have been doing the Elliptical Cross Trainer in addition to my normal running in hopes that it improves my upper body strength to some extent at least. I don't expect the results that one would get by lifting weights but if you use the arm handles and adjust the resistence level can you indeed use it to build some upper body strength? I would like to think it would build muscle the same way running/jogging does but I am wondering if the upper body apsect of these trainers is just a marketing gimic.