"Week 7" will challenge your muscular endurance with an increase in rep volume and a drop in set rest times from 45 seconds to 30 seconds. Less recovery equals more sweat and a higher heart rate. Shaving an extra 5 seconds off your transition time shouldn’t be too difficult as you probably have the exercise order memorized by now.
Looking for another twist? Put the TRX into single handle mode for the second set of the TRX High Bicep Curl and work each arm seperately (above). Make sure to keep the working elbow up.