The Reactive Strength Ratio (RSR) and Reactive Strength Output (RSO) are two new metrics created by Matt McInnes Watson and Ash Buckman.

 

RSR & RSO were created due to a lack of testing methods for more locomotive focused plyometrics. The standard RSI test does provide support in measuring static on the spot movements, but does not take into consideration the entrance momentum of the movement. Without these key parts to the landing and takeoff story it's hard to interpret two identical RSI scores that have been acquired in two completely different ways. This too was an important reason for creating the RSO, as it provides a metric for understanding the neural impact a certain movement may place on the body.

 

To learn more about both metrics, download our RSR/RSO Manual and check out the articles below, published on SimpliFaster.