Ab balls/Balance balls??? They work?

[mkv213]

I have one of those Ab balls and I've never really used it but I was wondering for those of you that do use it, do you feel you get better results than using machines or plain ol crunches? How effective are they for the core/abs?

[nyjetsfan86]

the only way i train abs is different exercises using balance balls and medicine balls i wouldnt waste my time doing crunches unless you want to sit there and do crunches for hours

[mkv213]

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