FREE DOWNLOAD
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
✅ Analysis tab to automatically visualise and compare results using a quadrant chart and standardised z-scores
✅ Built by coaches, for coaches
✅ 100% free
RSI testing and analysis is used by teams in the elite leagues
What is the Reactive Strength Index (RSI)?
The reactive strength index was developed to measure the reactive jump capacity of athletes and to determine how they cope with the stress imposed on their body from plyometric exercises. It demonstrates an athlete’s ability to rapidly change from an eccentric motion into a concentric muscular contraction and is an expression of their dynamic explosive jump capacity.
Reactive strength is related to acceleration speed, change of direction speed, and even agility. In-depth RSI analysis can allow you to highlight indvidual strategies for your athletes when performing their plyometric actions, allowing you to develop more individualised programmes.
The ground contact time of the reactive strength index test is an important parameter that must be considered when testing athletes and especially for interpreting the information. It is suggested athletes must have a sound level of technical plyometric proficiency before they are even considered for testing.
Download your free RSI calculator and analysis spreadsheet ⬇️
Why is the Reactive Strength Index (RSI) important?
The RSI represents an athlete’s ability to utilise the stretch-shortening cycle and their explosive capabilities during dynamic jumping activities, in particular during fast stretch-shortening cycle activities (i.e., plyometrics). These plyometric actions are important in a variety of sports and the RSI has demonstrated strong relationships with acceleration, agility, and change of direction speed.
Once RSI analysis has been performed an athlete’s training can be designed to improve their acceleration and reactive strength. This training may transfer to enhanced change of direction performance in sports requiring representations of fast stretch-shortening cycle functions, such as running between bases / wickets in baseball and cricket, or changing direction quickly in response to game stimuli in field and court-based sports.
Download your free RSI calculator and analysis spreadsheet ⬇️
Who is this calculator for?
✅ Strength & conditioning coaches
✅ Sports scientists
✅ Personal trainers
✅ Physiotherapists
✅ Coaches
✅ Athletes
✅ Gym-goers
This free RSI calculator and analysis sheet takes the difficulty out of collecting and analysing RSI data.
Don’t worry, we’ve done all the complex calculations for you. All you have to do is enter your data as part of your regular profiling 😁 So grab your free calculator today!
Download your free RSI calculator and analysis spreadsheet ⬇️
Download yours for FREE
Download your free RSI scoring and analysis spreadsheet and start collecting and analysing your athletes’ data today. Armed with this vital information, you can start optimising training programmes like a pro and maximising the development of your athletes.
Download your free RSI calculator and analysis spreadsheet ⬇️
What coaches are saying 🗣️
