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What is the reactive strength index? How does it impact athletic performance? Essentially, it is a ratio of contact time relative to concentric output (height) Build it via these 5 avenues: 1. Extensive base 2. Maximal landings 3. Depth & drop jumps 4. Repeat contacts 5. Concentric power focus

Gerry DeFilippo

88,125 subscribers

28,543 views • 2 years ago •via X (Twitter)

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3 Comments

Speed & Hurdle Coach2 years ago

@RolfOhman1 is there something that give a bigger picture then RSI?

Smolov2 years ago

Great post great info

jon mckinnie2 years ago

@JonJeffriess

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