It took more than 20 years of surveys for us to define what is optimal. These are some of those key items and teaching points we’ve picked up from those surveys, such as training group size considerations and training the squat from the bottom up.

You can build a powerful looking body without ever entering a power rack. But you’ll never really be strong. Stronger than the average guy, sure, but not the type of strong you dreamed of when you first set foot in a gym. For that kind of strength, you need a heavy bar on your back.