Reactive strength index (RSI) is a metric we use to help assess an athlete's elasticity. In this first ever live-streamed episode (https://youtu.be/HuD2KOUoD0k), Drake, John, and Greg discuss how it's used and what to do with the information collected from an RSI testing protocol. The guys also discuss how different box heights can affect an athlete's RSI, and how having an outstanding RSI doesn't mean you're automatically great at your sport. | Athletic Lab

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