What do you meditate is the best cardio equipment to enjoy at home?

Sometimes I just don't feel similar to leaving the house at all on the weekends....when I stay surrounded by I tend to fall of my program.I have dvds that I am totally bored beside and hand weights.
~I am allergic to treadmills!!they make my knees hurt!!
So I be thinking maybe a bike or elliptical.
What electrical device?Brand?
Answers:
I've had good results near:

stationary bike
ab coaster
vibration machine (pre workout)

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