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12 gru 2023 · The reactive strength index is a measure of reactive jump capacity and displays how an athlete copes with and performs plyometric activities. There are currently five known valid and reliable tests used to measure RSI. RSI appears to be linked with acceleration, agility and change of direction speed.
2 lis 2023 · Simply put: RSI-modified (reactive strength index) is a ratio of input to output – the input is represented by time spent on the ground generating the force to jump, and the output is the height of that jump. The latter is relatively easy to measure. The former, not so much. RSI-modified = Jump Height / Contraction Time. So, why measure both?
RSI-modified = Jump Height / Time To Take Off. This gives us insight into the input strategy and output of the jump performed, that is input represented by time spent on the ground and often the counter movement depth generating the force to jump, and the height of that jump that is achieved.
Reactive Strength Index Calculator. This easy-to-use scoring and analysis sheet helps you to quickly & easily collect your RSI testing data and analyse performances between athletes. Record results from reactive strength index tests. Automatically calculates athletes’ RSI scores and squad averages.
14 sty 2020 · A modified RSI can be computed from a countermovement jump (CMJ) by calculating the flight time to jump contraction time ratio (i.e. the time frame from the initiation of the jump to the point of...
18 paź 2023 · How to calculate reactive strength index? RSI = Jump height / ground contact time. RSI is calculated by dividing the jump height (in meters) by the ground contact time (in seconds). For example, if an athlete jumps 0.389m after a ground contact time of 0.155s, then they have a reactive strength index of 2.51. Reactive strength index formula
How to calculate Reactive Strength Index. The GymAware equipment and GymAware cloud automatically calculate RSI in the protocol. It uses the following formula: Reactive Strength Index (RSI) = Jump Height / Ground Contact Time. This RSI equation makes clear that improving RSI comes down to two things: Increasing vertical jump height
