Are you working your lower abs. Try doing leg lifts. Do reps 10 to 15 for 4 sets. Know this, that you have to eat correctly to help burn that extra fat. Check me out on facebook, Speed Weight Training for other tips. Good luck and keep working hard!
Exercising after eating can compromise oxygen and nutrient delivery to muscles.
You don't - at least not while exercising it
To lose at least 8 inches off your stomach I highly recommend doing exercises such as crunches and/or sit ups. Another thing to look into would be dieting, such as the Lunchbox Diet which involves you snacking throughout the day and not eating 3 meals a day.
Try exercising for at least 30 minutes a day.
Exercising at least one hour (not more) is good for Rumtoised Arthritis
Stomach crunches: There are at least 8 different types of sit-ups that can all have an effect on your "six-pack". Even leg-lifts while standing work that set of muscle. Always stretch before exercise and don't forget to breathe while you are working out.
about an hour or at least 30 min.
At least 20 minutes a day.
There are at least 3 exercises that will work out your core. Swimming, jumping rope, and jumping hurdles will work out your core.
To me, waiting half an hour or 20-30 minutes after eating is very recommended. This is because when we finish eating, our food is in our stomach getting digested. When we move a lot like run or jump, the consumed food bounce around, thus, resulting in vomiting, or a sick stomach.
absorption
A 16 year old girl, or anyone who is over weight, can lose weight by eating a healthy diet with little to no "junk food" and exercising regularly (regularly is considered about 5 days a week). The best exercises for loosing weight are long (as in at least over an hour if not a few hours) aerobic exercises such running, biking, hiking etc.