In order to strengthen your core, your focus should be on the range of the exercises for that specific area. In addition, you’ll need to target all of the abdominal muscles, including the outer and deeper ab muscles and the obliques.
Here are some great ab exercises that specifically work that area.
Follow the instructions through Photo’s bellow:
Straight Leg Raises
Weighted Bent Leg Jackknifes
As in many other workouts results may vary, but be sure you follow the required exercise guide for the best results.
In addition, you need to be careful with the nutrition, and eat healthily!
Note: You can enhance this workout by doing some cardio. Here is some ideas bellow that you can check out:
a) 30 sec. jog and 30 sec. sprint /x5
b) 40 sec. jog and 45 sec. sprint /x6
c) 50 sec. jog and 40 sec. sprint /x7
d) 60 sec. jog and 50 sec. sprint /x8