Total Body Resistance Exercise is fitness using your own body weight for resistance.  You can leverage your body to make it a cinch or more arduous - it's your call.  Using the TRX, which was developed by former Navy SEAL Randy Hetrick, increases strength, balance, flexibility and core stability simultaneously.  The workouts utilizing these straps are endless.  Imagine a plank with your legs suspended?  Step outside your comfort zone and give it a try!