It would work, but is basically a one trick pony. I can't think of any other exercises you can do with this piece of equipment. Better to grab an exercise ball, the big inflatable kind and use that for core work. You can do pushups/plank position with your hands on the ball, your feet on the ball, or my favorite start with the ball under your chest, walk out on your hands until it is under your feet, do a push up and walk back, rinse repeat. You can also do sit up type crunchs on it, or try to balance on it, either sitting or kneeling, all are good core workouts.

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Jim

**Note above poster works for a retailer selling bikes and related gear*

True,
but I cannot take the big ball with me at work :)

when used properly they can be really effective in engaging core muscles.....that being said, 90% of the people i have ever seen use one are using it incorrectly/have awful form and this can cause you to really easily injure yourself. just a precaution. look up some youtube videos on proper form when using one, really helpful.

Use it for a desk chair and get an all day core workout. I did that when I had a office job.

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Jim

**Note above poster works for a retailer selling bikes and related gear*

Be careful with your lower back.

The exercise wheel with pedals and two wheels is even better for triathletes ; ) Seriously

I am not sure that the wheel will make you faster but it is a good tool for core training. Just make sure you keep a neutral spine and don't get lazy and slip into anterior pelvic tilt. Also, keep your shoulders packed (google it). Don't overdo it. Just a little is enough.

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Simplify, Train, Live