I put this exercise under “Upper” body exercises but it could have easily been placed under core. It works your abs tremendously especially when you keep your body from twisting up, as it will naturally want to do. Exercise is crucially important for getting a six pack but there are several other essentials that you need too. There’s a great article called “How to Get Flat Ripped Abs without Useless crunches or situps.” It lays out everything you need to know. When you get a chance, you’ll want to check it out.
How to do a Missing Arm Hold:
Get in a normal pushup position. Lift one arm of the ground and place it behind your back. Hold this position. Repeat on the other side.
Muscle group worked:
Chest, shoulders, arms and core
Target Repetitions for Muscle Tone/Endurance: 60 seconds
Why it works:
Missing Arm Hold Exercise works well because your chest, shoulder and one arm is being forced to hold up the weight of your body. And your core muscles are being utilized in order to keep your body parallel with the floor.
Make sure to keep your body parallel with the floor. If it starts to rotate up force it to stay down. This will engage your core muscles.
Breath in and out slowly throughout this exercise.