NAC Trainer, Maria Ferraro shows us:

TRX Suspended Lunge-
  1. Start by placing your right foot in a TRX strap and facing away from the pivot point.
  2. Plant your left foot firmly on the ground.
  3. Keeping your chest up tall, slowly push your right foot back towards the pivot point and bend your left knee to descend into a lunge.
  4. Push back up with your left foot to return to the starting position.

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