The Total Resistance Exercise Suspension Training System, or TRX, was developed by Navy SEALS as a quick and convenient way to build strength anywhere. The TRX system uses gravity and the weight of your body to provide the resistance for a variety of muscle-building exercises.
Equipment
The TRX system comes with 12 feet of nylon webbing with attached handles and foot straps. The device weighs less than 2 lb., making it small and light enough to carry with you to the gym. When you purchase the TRX system, you'll also get an instructional DVD with demonstrations of the exercises you can perform with the system.
Benefits and Disadvantages
Most of the TRX exercises require your body to be partially suspended above the ground. While traditional weight machines at the gym support most of your body weight, TRX exercises engage your abdominal muscles for support and stabilization during your entire workout. The TRX system works a bit like a cable tower or resistance band, giving you full range of motion for more functional exercises, and the program offers a variety of exercises to match any fitness level. The suspension element of the program can be uncomfortable at first. While you can easily carry your TRX to the gym, many of the exercises on the equipment can be performed with other equipment already in the gym.
Upper Body Exercises
Try chest press, suspended push-ups, suspended knee tucks and side-straddle golf swings to work the pectoral muscles of your chest. Work your arms and shoulders with biceps curls, triceps extensions, suspended pikes and single-arm rows. Target your back muscles with back rows, hip press and side-straddle golf swings.
Lower Body Exercises
Work your glutes and hips with crossover lunges and side lunges. Exercise your quads and hamstrings with suspended lunges, hamstring curls and hip press. Target your calves with side lunges.



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