Which TRX Principle states that the trainer hangs straight down in a neutral position?

The TRX Principle that states the trainer hangs straight down in a neutral position is rooted in the Pendulum Principle. This principle emphasizes the natural alignment and gravitational pull on the body when suspended, allowing for a position that relies on the body's weight and the stability of the suspension system. When a trainer hangs in this way, it reflects a state of equilibrium where the body can properly engage core muscles while maintaining control and stability. This principle is essential for understanding how to effectively use TRX equipment for both strength training and balance enhancement. It illustrates the significance of body mechanics and gravity in functional movement training.