The most important thing when doing this exercise is to keep the correct position. When you lift the elbows and will rely on its toes, make sure the upper of your body to be a flat line.
Distribute the weight evenly on elbows and legs which will make tense muscles on the buttocks to get extra balance. When master the proper position, the only thing you have to do is beat yourself in this 30-day challenge. You should start with 20 seconds on the first day, then you can gradually increase in the following days.
source: healthyfoodteam.com