A shuttle-run agility score calculator: convert shuttle-run time into an agility rating and improvement margin for athlete agility testing.
折返跑成绩以距离与用时换算速度：平均速度=距离÷用时（m/s），×3.6 得 km/h，配速=用时÷距离×10 得每 10m 秒数。时间越短、速度越高越灵敏。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Average speed | average speed = total distance / total time | Fitness testing practice |
| Timing method | photocells beat hand timing, which errs by about 0.2 seconds | Testing practice |
| Validity | shuttle runs blend speed, agility and turning ability | Exercise science practice |
灵敏（折返跑）成绩。体育竞技工具，帮助计算与分析运动数据。