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Whistle Performance (formerly GPS DataViz) has officially changed its name. Get ready to perform! Press Release
Blogs
![Eccentric Utilization Ratio: Effect of Sport and Phase of Training [Article Review]](https://static.wixstatic.com/media/26ac2c_3abf8713185b47f1870f640b3dfcd607~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/26ac2c_3abf8713185b47f1870f640b3dfcd607~mv2.webp)
![Eccentric Utilization Ratio: Effect of Sport and Phase of Training [Article Review]](https://static.wixstatic.com/media/26ac2c_3abf8713185b47f1870f640b3dfcd607~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/26ac2c_3abf8713185b47f1870f640b3dfcd607~mv2.webp)
Eccentric Utilization Ratio: Effect of Sport and Phase of Training [Article Review]
Unlocking Athlete Power: A Deep Dive into the Eccentric Utilization Ratio (EUR) Why the Study Was Done Strength and conditioning professionals are constantly seeking reliable and valid tests to evaluate muscular performance and explosive power. Because the ability to efficiently utilize the stretch-shortening cycle (SSC) is a critical factor in many sports, sports scientists look for practical ways to measure it. The Eccentric Utilization Ratio (EUR)—calculated as the ratio

Whistle Performance
2 days ago3 min read


Fatigue or Strategy? Using RSI-Mod to Pinpoint Performance Decrements
In high-performance environments, Jump Height has historically been the "king" metric. However, Jump Height is an outcome measure—it tells you what happened, but not how it happened. Two athletes can jump the exact same height using vastly different strategies. One might be explosive and spring-like, while the other might be slow and muscle-dominant. This is where the Modified Reactive Strength Index (RSI-Mod) becomes a valuable metric for practitioner’s to "look under the h

Whistle Performance
5 days ago8 min read
![Repeat sprint fatigue and altered neuromuscular performance in recreationally trained basketball players [Article Review]](https://static.wixstatic.com/media/26ac2c_e839196050724bda8c500e9e41ff917f~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/26ac2c_e839196050724bda8c500e9e41ff917f~mv2.webp)
![Repeat sprint fatigue and altered neuromuscular performance in recreationally trained basketball players [Article Review]](https://static.wixstatic.com/media/26ac2c_e839196050724bda8c500e9e41ff917f~mv2.png/v1/fill/w_514,h_386,fp_0.50_0.50,q_95,enc_avif,quality_auto/26ac2c_e839196050724bda8c500e9e41ff917f~mv2.webp)
Repeat sprint fatigue and altered neuromuscular performance in recreationally trained basketball players [Article Review]
Study Overview and Objectives The primary aim of this study was to investigate how acute fatigue induced by a sport-specific repeat sprint ability (RSA) protocol affects neuromuscular performance in recreationally trained basketball players. Specifically, the researchers sought to measure changes in Countermovement Jump (CMJ) and Drop Jump (DJ) performance metrics immediately following fatigue and after a short recovery period. A secondary objective was to determine if an

Whistle Performance
Feb 233 min read
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