Many of you have probably heard about this practice and perhaps you are still sceptical of its efficacy, but those that believed in it and tried it have made their body stronger with sexy defined abdomen.
This is maybe one of the best effective exercises to make the central part of your body stronger. It helps in defining the muscles of the arms, legs and buttocks, strengthening the external and internal muscles of your stomach and back and eliminating the fat-deposits.

Get a New Body With Just One Exercise 4 Minutes 28 Days
It is called ” Plank challenge” method and it should be performed during four weeks. The levels of difficulty elevate gradually with every day of the training. The 1st day the exercise lasts only twenty seconds and it will enhance to reach four minutes without interruption. In the last phase your muscles will be strong and your body more resistant.

Remember that it is very important to perform the exercise properly. Put yourself in a plank position with your arms and toes on the ground. Raise the upper body in order to stay in a straight line. Now you are ready to begin!
The best time to do this amazing and effective exercising is in the morning.

Day 1- 20 seconds;
Day 2 – 20 secs.;
Day 3 – 30 secs;
Day 4 – 30 secs;
Day 5 – 40 secs;
Day 6 – Rest day;
Day 7- 45 secs;
Day 8 – 45 secs;
Day 9 – 60 secs;
Day 10 – 60 secs;
Day 11 – 60 secs;
Day 12 – 90 secs;
Day 13 – Rest day;
Day 14 – 90 secs;
Day 15 – 90 secs;
Day 16 – 120 secs;
Day 17 – 120 secs;
Day 18 – 150 secs;
Day 19 – Rest day;
Day 20 – 150 secs;
Day 21 – 150 secs;
Day 22 – 180 secs;
Day 23 – 180 secs;
Day 24 – 210 secs;
Day 25 – Rest day;
Day 26 – 210 secs;
Day 27 – 240 secs;
Day 28 – 240 secs and up ( you should keep as much as you can)

Note: People that suffer from hypertensive heart disease or other serious health problems should not practice this exercise.