Canvas & Ratio
Choose your destination platform format
Layout Template
Choose a content structure for your slides
Preset Themes
Typography & Sizing
Brand Kit Customization
AGENCYConfigure brand assets for headers & footers
Outro Slide CTA
Customize your closing call-to-action slide
Background Pattern
Build Your Carousel
Drag and drop any post card below onto a slide, or use the quick buttons to insert content/images instantly!

Can we assess Reactive Strength Index in horizontal bounding or hopping? Should we? Is it associated with sprint performance? New research from @sharp_ant says yes....


Key findings from this excellent paper: 1⃣ Hop distance in the 3-hop and 5-hop test is well correlated with 10m and 40m sprint performance (r = -0.7 to -0.8)


2⃣ Reactive Strength Index, calculated in 3-hop or 5-hop tests is associated with sprint performance, particularly beyond 15m. When this RSI is calculated via hop distance (versus via flight time), it correlates more strongly with sprint performance


3⃣ RSI-horiz differentiates btw sprinting ability (slow vs fast). Its a sensitive measure. Previously 3-hop vs 5-hop distance (ratio) has been proposed as an indicator of successful sprinters, but here, the 3/5 ratio did not differentiate between sprinters of different ability


Reference: Sharp, A., Neville, J., Nagahara, R., Wada, T. and Cronin, J., 2025. Using Multiple-Hop Assessments and Reactive Strength Indices to Differentiate Sprinting Performance in Sportsmen. Applied Sciences, 15(4), p.1685. This paper is currently open access 👏 @sharp_ant