How long do you hold a leg raise?

Question

I do leg raises in reps 25 and do 4 sets.

I raise to 90 degrees for 5 seconds for rest then bring my legs down and hold for 10 seconds and this is one rep.

How long should I hold and how long will it take me to build abs, and I also do 100 crunches, and 100 side crunches.

If anyone can give me any other workout that dose not use equipment, I'll give them 10 pts.

Answer 1

i go up hold 3 secs go down 6in hold 3 secs go up again that's a rep but then after 25 i hold it at 6in for a minute it's intense and i do that at least twice an ab workout overall should be 10-20mins and bicycle is the best ab workout http://www.youtube.com/watch?v=vPKXFarXb...

u dont need the weight though to do it

and as for abs they are made in the kitchen my friend eating right is what helps the most ur just building muscle but u need all that fat off ur stomach body fat percentage gotta get it to like 10% to see them abs these workouts help though but u gotta eat good