Ab exercises, how often?

[73kittycat73]

Hi. I'm new to working out. I have been exercising for about two weeks now. 25mins a day exercise bike, a short chest with weights session (YouTube vid.) and Abdominal Leg Raise and crunches. Currently I do three sets of ten reps each.
I don't feel like this is enough and have found these exercises: www.self.com/gallery/21-incredibly-effective-abs-exercises-you-can-do-instead-of-crunches
I plan on doing number 2, 7, 11 and 20. However, it doesn't say how many reps you do of each, or how many times a week. I'd be really grateful if someone could give me any advice? Thanks for reading.

[TheFirie]

The abs you linked are mostly plank variations. Plank is more based on time than repetition so you would hold it for 1 minute or more. You can tear the cartilage in your ribs with the plank, so don't overdo it. I am not a big fan.

a set of 10 for any abs isn't enough to fatigue the muscle. Aim at 25, 50 or 100 for the basic crunches. Leg raises again is a so-so exercise. Very bad for the back.

There are tons of variation of exercises changing the angles, heel touch, frog, up in 3 down in 1, ball bouncing on wall, mountain climber.on opposite elbow ...

[73kittycat73]

Thank you TheFirie. Will have a think about that then.

[SheilaChan]

Hello, I do the plank before, but a bit hurt my back. Then I did the boxing training, it is the whole body exercise. My abs and bum got firm, have a nice body tone now, after three months of boxing, I lose 1 stone, amazing! It is interesting and fun.