A good working capacity with the plank is required to perform this exercise. Although this may seem like an incline pushup, there is also a rotational force running through the body, due to only one foot bound within the TRX strap. Therefore, this exercise is not only a great upper body exercise.
The TRX Atomic Push Up (similar to Pike Push Up) is a two part exercise, making it more challenging than a regular push Up. The components of this exercise are a full pushup, followed by a tuck (ie: driving knees to chest). This combination augments core strength requirements, as well as shoulder strength , as the body angle changes through this movement.
The TRX Sprinter start is a good way to incorporate a usually stationary plank into a dynamic movement. This exercise will target your lower body muscles, with the key being a strong hip extension/ hip thrust. .Because it is a good dynamic exercise, it can also be utilized for cardio benefit.
The TRX Prone Pike exercise is similar to the TRX Suspended Jackknife, only this time, you are performing a pike, as opposed to a tuck, which greatly increases the difficulty of this movement. Again, this is a great core activator, but if you are somewhat weak, it can target the hip flexors too much