I am late 40's father of 3 active boys. I myself have been pretty active most of my life, until recent knee injuries have me often on the sidelines. As part of my road to Recovery, my Athletic Therapist showed me TRX, and I picked one up. Loving it!! Now when I drop kids at a sport practice, I can pull out my mat and TRX at a nearby park, and get a quick work-out in!!