Official protocol by Brower Timing System RSA Research · Speed Endurance
RSA Protocol (20×15m Shuttle)
High-volume shuttle RSA assessment with short distance and tight 15-second recovery
Primary measureTotal Sprint Time & Fatigue Index (%)
CategorySpeed Endurance
FormatRSA
Pacing audioManual / Camera
Standardized testing protocol
20 shuttle sprints of 15m with 15 seconds passive recovery.
Required field equipment
15-meter shuttle course, cones, stopwatch
Calculation formula & scoring
Time4Test automates this equation directly during the session:
Total Time, Best Time, Fatigue Index.
Scientific reference
High-density RSA studies in court athletics.
Execute in Time4Test
Calibrated acoustic audio cues, live split recording, and instant automated calculation on your smartphone.
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