TRX training is an exercise method shown to improve total body strength, stability, and cardiovascular health. TRX is short for total body resistance exercise and uses suspension training for a complete, full body workout. Suspension training works by challenging your body in conditions of instability. This forces you to constantly engage your core to perform each exercise. It also helps improve your balance and overall strength.
You are suspended from an anchor point where bodyweight becomes your machine and gravity your resistance.