Back muscles is the second largest muscle group in the body after the foot muscles, so the chances to prepare it to exercise its function and strengthen it becomes larger through doing some effort in the insanity workout calendar, which are also designed to burn maximum calories.
A bending exercise using weights which rose by both hands. This exercise is one of the best back exercises to strengthen the build of the upper part of the back.
In this exercise, you can use the back muscles to pull the "barbell" straight up toward the chest with the elbow bend and lift the front of the head with a straighter back and then lower the "barbell" to control it, and then repeat this exercise more than once.
Pull up and chin up:
One of the most important exercises in the measurement of the physical strength of a man compared to the weight of the body, it is possible to lift weights weighing 280 lbs, but nevertheless cannot perform pull up and chin up exercise except 4 times.
And remember that you must make the distance between your hands slightly wider than shoulders or at shoulder width.
I.e. you will pull the "barbell" from the carrier at the thigh, then push the shoulder up as much as possible without bending the elbow, repeat this exercise several times carefully.
That's it , you should keep insanity workout schedule and health maintenance.
See More: Best Workout For Build Muscle Fast