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Uploaded by livestrong on Jul 1, 2009
Abdominal crunches are great core exercises, often mixed with balance balls for working other muscles as well. Learn how to do abdominal crunch exercises in this strength training video.
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wanna do some crunches on my balls?
Delirium1712 5 months ago
oh and how many reps?
imunchmangoes 2 years ago
thank you.
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wanna do some crunches on my balls?
Delirium1712 5 months ago
oh and how many reps?
imunchmangoes 2 years ago
thank you.
imunchmangoes 2 years ago