[Hurlex]

hey i just have a quick q..in the other thread soemone said that to do good crunches so it wont hurt u back and for u to do the work out good..."NOT to lift from behind your head"...so meaning then how do i lift when i come up? pure force? if someone can tell me how they do crunches(how they hold there arms etc..) i would really appreciate it..thanks you guys anywayz...