What is an Ab Machine (like Ab Rocket Twister for example)?

A training machine like Ab Rocket Twister for abdominal fitness allows you to perform resistance training at home. The ab toner can perform various resistance exercises for strengthening all the abdominal muscles and obliques.

There are two types of devices to work your perfect abs:
 abdominal tables where you have foot support to perform abdominal exercises
 guided abdominal devices in which the movement is driven by the declination of ...
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