athlete performance | jjrnextlevel

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RSI testing results from an 18-inch depth jump, showing each attempt’s Reactive Strength Index, jump height and ground contact time. Looking at all three measures helps explain how the athlete achieved the score.

RSI testing results from an 18-inch depth jump, showing each attempt’s Reactive Strength Index, jump height and ground contact time. Looking at all three measures helps explain how the athlete achieved the score.

What RSI Testing Tells Us About an Athlete’s Jump

Reactive Strength Index, or RSI, gives us another piece of information to help understand an athlete’s performance and guide their training.

Athlete Training

Oct 93 min read

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