There is no one "best stomach exercise". It depends on what you want.
For example, do you want to lose stomach fat, or are you looking for core strength exercise to avoid developing back problems (lower Back pain, incidentally, is the number one patient complaint in America) or are you looking for abs exercise to build abdominal muscles.
Determine what you aim to achieve. Then choose the relevant page link, from those listed below, for in-depth information about the specific subject.
Sitting down would be a good start.
Any sort of sit up that works the abs, look up good abdominal exercises. CARDIO WILL NOT WORK
There is a program at many gyms called Silver Sneakers, which does all exercises sitting down. Also, there are some videos. One exercise I know of is to tap your feet on the floor (kind of like "putting your foot down"). This strengthens the muscle in front of your shins and helps you keep your balance should you trip.
For a big stomach running is always one of the best options, a mile a week is 4 a slow process but a good start. Another good but very challenging work out 4 a big stomach is p90x!
Another good exercise to tone your abs is crunches. However, you should also include other types of exercises such as walking or jogging.
doing bicycles on your back with your feet as close to the floor as you can get without touching it.
I'll say "that is not good" while sitting at a cafe in Hamburg.
During vertigo is not a good time for exercises. The best exercises deal with turning the head side to side and up and down. You should only do these in a safe place, such as sitting on the bed or with a spotter to help you so you do not fall and injure yourself.
A good diet + exercise = flat stomach So while push ups can help in making a flat stomach, which in fact is just low body fat, it will be useless if proper nutrition and other exercise, ex. weightlifting and cardio, is not utilized.
While some degree of disk degeneration is inevitable, people can reduce their risk by practicing good posture (during sitting, standing, and lifting), performing neck-stretching exercises, maintaining an ideal weight, and quitting smoking.
The best abdomen exercises that provide the quickest results are good old fashioned situps. There are many different variations of situps that work different muscle groups. Try finding them in fitness magazines.
There are many different exercises for your stomach muscles, but please make sure you dont only train your stomach- you must train opposing muscle groups, so if you train your stomach you must train your back too! Do a search on the following to find the best ab and back exercises: CrunchesReverse CrunchesPlank(also a really good exercise for abs is to simply hold your stomach in for as long as possible, See how long you can do this, then try to beat that time!)HyperextensionsLateral bendsreverse leg raises