CAN IMUS ACCURATELY DETECT DIFFERENCES IN DYNAMIC CONSTRAINT-GOVERNED TASKS? APPLICATION TO THE LAYUP SHOT IN BASKETBALL

Authors

Nuha Mohammed Alkhalaf, Loughborough UniversityFollow
matthew pain, Loughborough UniversityFollow
Michael Hiley, Loughborough UniversityFollow

Category

Wearable Technology

Document Type

Paper

Abstract

The purpose of this study was to assess the validity and reliability of an inertial measurement unit (IMU) system against an optical motion capture system during a dynamic complex task, the layup shot in basketball. Eight basketball players performed 10 trials with and 10 without a defender. Key kinematic variables (jump height, take-off angle, joint angles, COM displacement) were derived and agreement (Bland-Altman plots) and disagreement (RMSE, SPM) calculations were carried out for each trial. The IMU system provided agreeable results for jump height and take-off angle, while joint angles and COM displacement agreement were plane-specific. A between-condition analysis demonstrated the IMUs reliably detect joint angle differences between defended and undefended conditions comparable to the optical system for all but three joint angles. The IMU system was able to detect similar difference between conditions to the motion based system.

Recommended Citation

Alkhalaf, Nuha Mohammed; pain, matthew; and Hiley, Michael (2024) "CAN IMUS ACCURATELY DETECT DIFFERENCES IN DYNAMIC CONSTRAINT-GOVERNED TASKS? APPLICATION TO THE LAYUP SHOT IN BASKETBALL," ISBS Proceedings Archive: Vol. 42: Iss. 1, Article 176.
Available at: https://commons.nmu.edu/isbs/vol42/iss1/176