Invented by a former U.S. Navy SEAL, the TRX (short for total-body resistance exercise) turns every exercise into a challenge for the core by using two very accessible resources: gravity and our own bodyweight. All you have to do is anchor the TRX straps to a secure spot (think a weight machine, a door frame, or even monkey bars or a basketball hoop pole if you’re getting creative) and use either your feet or hands—depending on the exercise—to hold onto the straps.
In general, a part of your body will be suspended above the ground or you’ll be leaning into or away from the straps to create resistance and destabilization. Knocking our balance out of whack gives us no other option but to adjust, which means engaging the midsection and back and firing up the shoulders and hips to maintain control throughout the movement. Even better? Since the straps roll up into practically nothing, it’s a take-anywhere, do-anywhere kind of workout—provided you have somewhere stable to serve as your base.
Ready to hang tough—and build SEAL-worthy strength? Give these 45 TRX moves a try!