Preprint / Version 2

Bias in estimated short sprint profiles using timing gates due to the flying start

Simulation study and proposed solutions




sprinting, speed, modeling, bias


Short sprints have been modeled using the mono-exponential equation that involves two parameters: (1) maximum sprinting speed (MSS) and (2) relative acceleration (TAU), most often performed using the timing gates. I have named this the No correction model. Unfortunately, due to the often utilized flying start, a bias is introduced when estimating parameters. In this paper, I have (1) proposed two additional models (Estimated TC and Estimated FD) that aim to correct this bias, and (2) provided a theoretical simulation study that provides model performances in estimating parameters. In conclusion, both Estimated TC and Estimated FD models provided more precise parameter estimates, but surprisingly, the No correction model provided better estimates of some parameter changes.


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2022-07-18 — Updated on 2022-07-19