Demonstration of a proper Ab Curl

[ANNASABELA]

Thank you, very helpful!

[sublunari]

Thank you! That was very helpful.

[janexsxhot]

wow! i like it! very informative . .

[darrylmathews]

it was very helpful. thanks.can you please tell me whether a sit-up or an ab curl is better.what all muscles do we work out when doing a sit-up