Abs, or a “six pack” as they are affectionately call, tend to be the hardest muscle group for most people to make progress when training. There several important things to keep in mind when working abs.
Like all muscles, the abdominals require a period of rest in order to recover. If you train your abdominal muscles within this recovery period you risk the possible breakdown of muscle fibers which will inhibit your abs from growing and becoming more visible.
Next, in order to illicit new gains in strength and definition, you must overload your abs with more intense training than they are accustomed to. Your ab muscles are at work all day, supporting your trunk and stabilizing your body, so you must perform exercises that feel very difficult within a range of 10-20 repetitions. If you can do 50 crunches, then they are too easy! Pick a different exercise such as weighted sit-ups or weighted cable crunches. These difficult exercises will produce invaluable muscle cell growth.
But the most critical components of building visible abdominal muscles is a strict diet and cardiovascular training program. No matter what type of abdominal training you perform, six-pack abs only become visible after burning the fat surrounding that area. Typically, this type of fat is the last to go so for women to lose it they need to go down to 12-13% body fat and males down to 6-7% body fat. Having said that, you're cardiovascular and nutrition programs will play a huge role in helping you burn that stubborn fat.
Good Luck on your quest #staymotivated