The TRX Suspension Trainer can be used to improve mobility and flexibility; it allows you to unload your bodyweight while doing specific movements. By unloading some bodyweight, it is possible to safely move through a greater range of motion. The TRX can also add resistance and leverage to a particular stretch, helping safely pull the body to a range of motion that might not otherwise be achievable. It offers the ability to work with and against the straps while moving into various stretches, reinforcing proper body mechanics and posture.
Here is an effective Lower Back Stretch using the TRX Suspension Trainer.
This simple, yet intense movement not only stretches the muscles of lower back and shoulders, but is also a great way lengthen the piriformis and hamstrings muscles, and stretches the iliotibial band.