If you can't feel it in your abs then raise your arms up higher until your abs tighten up
and/or,
Hold 10 pounds or more over your head.
Beginners:
Lean back ½ way or until abs get tight.
Hold onto your knee or the table for support.
Have someone hold your feet or place your feet against a wall.
Hold each rep for less than 10 seconds.
For the best results, Do this quick 3-minute ab workout 1-to-5 times per day, 1-to-3 days per week.
2. ONE Minute Ab Workout
Important: DO NOT TOUCH the wall after
you rollout during the first ½ of this ab workout.
Rollout up to an inch away from the wall and hold for 30 seconds.
Finish by doing as many ab rollouts as you can for the remaining 30 seconds.
Lightly touch the wall without slamming into it for this part.
Keep your lower back flat or rounded upwards towards the ceiling. If you're unable to do this then start off closer to the wall
but not so close you feel nothing in your abs.
You're actually falling into the wall.
DO NOT move your arms too much out in front of you while keeping your heels flat on the floor.
Then let your heels rise off the floor while your hips move forward & your arms move very little at the end of the movement.
For the best results, Do this ab workout at least twice a week at least 3x a day.
With normal sit-ups → Your hip flexors do most of the work while your abs only work or contract real hard in the middle of a sit-up.
In the 90 second & 3-minute ab workoutsyour abs are doing all the work. They contract real hard to stabilize your midsection to keep you from falling backwards.