This video has a series of creative exercises to challenge your entire body, specifically though it will really target those core muscles in the shoulders, abdominals and back. The creator of the TRX does a great job introducing the suspension training kit and gives an insightful synopsis into its history and how it was invented. The TRX can be used anywhere and by anyone.  You can purchase the TRX alone, the TRX ceiling mount, door mount, DVDs to help you workout safely and accurately and even extenders to give you more distance when needed.