The TRX Ab Crunch is the watered down version of the TRX Prone Pike and is pretty much similar to the Suspended Jackknife. It is a dynamic tuck position, bringing your knees to your chest. It is a strong core activator, while working the upper body isometrically to stabilize you through the movement
The TRX Pistol Squat is the same as the Single-Leg Squat. Holding onto the TRX starps while executing this movement allows you to maintain an upright position throughout the movement, but also works the scapular retractors (ie: the rhomboids) which help avoid the typical rounded shoulder posture typical of Western “office worker'” society.
The TRX Single-Leg Squat is otherwise known as the Pistol Squat when one without the TRX straps. Holding onto the TRX starps while executing this movement allows you to maintain an upright position throughout the movement, but also works the scapula retractors (ie: the rhomboids).
The TRX Side Plank exercise is again a variation of the regular floor side plank, with your feet suspended in the TRX straps. In addition, a rotation element is added to this side plank, which is great dynamic core stability work in the often neglected Transverse (rotational) plane of motion.
The TRX Wide Grip Rows is similar to the Low Row and Inverted Row. The major difference is the arms are abducted at about 45-75 degrees, which takes the Latissumus Dorsi out of the equation and puts more stress an the Rear Delts, Rhomboids, and Middle/Lower Traps. That makes this exercises biomechanically more difficult to execute,
The TRX Power Pull is of benefit in two ways: 1. This exercise is of a rotational nature, meaning that you are working on a Transverse plane, as opposed to the usual Saggital or Frontal plane. Most of the movement we do tend to be in the Saggital plane, like running, pushing, pulling, etc.