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Undersun Fitness’ Frequently Asked Questions

  • Will the door anchor damage the door?

    Because of the soft foam used for the stopper, the door anchor should not damage your door, if placed properly. The sharp edges on some doors may damage the door stopper over time, so periodically check your anchor for damage, and replace if necessary.

  • What is the door anchor for?

    To get maximum results from your Undersun Resistance Bands, you’ll want to incorporate some anchored exercises into your routine. In a gym, or even an outdoor park, you can easily anchor your bands around a piece of equipment, but the door anchor will allow you to do the same with any door in your home, office or hotel. Make sure to check out one of the TA2 training programs for a variety of anchored exercises for each muscle group.

  • What bands come in a set?

    Each full set of Undersun Resistance Bands comes with 5 different levels of resistance, from X-Light, Light, Medium, Heavy and X-Heavy. These are the 5 most frequently used resistance levels, and when paired together you can create countless levels of resistance, for any exercise.

  • How big are each of the Undersun Resistance Bands?

    Each of the five different size bands are 41” in length, and 82” in circumference. The X-Light band is roughly ¼” wide, the Light is ½”, Medium is ¾, the Heavy is 1 ¼” and the X-Heavy is 1 ¾”. 


  • How long is the rest between sets?

    Just like the rest between exercises you want to keep your rest between sets to 60-seconds.

  • How do you use the workout calendar?

    To make it easy to follow the program we’ve created a calendar on the main page, after login in, with all 12-weeks of the program. The workout and rest days are already scheduled in for you, so all you need to do for each workout is click on the appropriate day. That will take you directly to your workout for the day. When you’ve completed the workout click the “FINISHED” button. Each time you log in you will be taken back to this same main calendar page.

  • What does the name "TA2" stand for?

    TA2 stands for “Train Anywhere. Train Anytime”, and the TA2 HITT & TABATA program is no exception. Combined with Undersun Resistance Bands, this is a complete weight loss, and muscle toning program, that you can do wherever you are.