yes thet can
By doing sit ups.
Every one has 'abs' to start out with. Though, to get tight abs you need to do sit ups and other exercises. You cannot get tight abs without doing sit ups or any other form of exercise.
yes
It all depends on how many you are doing, also keep in mind that sit-ups aren't as effective as crunches, crunches will get you abs much quicker... also, you must be exercising fairly frequently (read everyday), not just doing sit-ups, if you want abs.
The abdominal muscles called rectus abdominis are the ones that work hard to enable you to flex your abdomen when doing sit-ups. Other muscles used while doing sit-ups are the external oblique's, tensor fasciae latae and rectus femora's.
by doing 40 sit ups a day in a week in the morning and the after noon
YES!!! i have been doing sit ups for about 4 weeks now... About 250 a day and my stomach is clearly getting flatter and i can see my abs more clearly.
Lower abs can get toner with exercise. Doing crunches or sit ups on a daily basis can tone the stomach muscles.
flex your abs by sucking it in and out. Then you can flex your chest. I used to be afraid to take my shirt off but now I am at the pool all the time flexing my chest and showing off my six pack to the ladies Also, if you don't know how to flex your abs, it probably means you don't have abs. Do enough sit-ups, crunches, etc, and the flexing should come naturally.
By doing push ups and sit ups and by doing some exercises you think is better for you. The main thing is to do the girls push ups and situps . That's how you grow abs.
At least fifteen in my opinion
well,it matters about the child's rib case,but yes by doing sit ups