DecelR is an R package for sport scientists to analyze deceleration performance from time–speed data, the Acceleration-to-Deceleration Assessment (ADA).
The package derives acceleration directly from filtered speed-time data (dv/dt).
Install the development version from GitHub:
# install.packages("remotes")
remotes::install_github("NicoPhilipp96/DecelR")
library(DecelR)
run_ada_app()-
Harper, D. J., Morin, J.-B., Carling, C., & Kiely, J. (2020). Measuring maximal horizontal deceleration ability using radar technology: reliability and sensitivity of kinematic and kinetic variables. Sports Biomechanics / International Society of Biomechanics in Sports, 1–17.
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Harper, D. J., Philipp, N. M., Eriksrud, O., Jones, P. A., Graham-Smith, P., & Dos’Santos, T. (2025). Assessing deceleration performance: Methodological and practical considerations. Sports Medicine (Auckland, N.Z.). https://doi.org/10.1007/s40279-025-02339-7
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West, M. A., Compton, H. R., Dascombe, B. J., & Secomb, J. L. (2025). Introducing the novel deceleration threshold method: Comparative reliability to previous sprint deceleration analysis methods in team-sport athletes. European Journal of Sport Science: EJSS: Official Journal of the European College of Sport Science, 25(4), e12278.