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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
Published on: April 21, 2017
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A practical assessment of wheelchair racing performance kinetics using accelerometers
Amy R Lewis1,2, Elissa J Phillips2, William S P Robertson1
1School of Mechanical Engineering, Faculty Of Engineering Computer & Math Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
Sports Biomechanics
|July 30, 2019
Summary
Inertial measurement units (IMUs) show promise for assessing wheelchair propulsion kinetics in athletes, despite limitations with spoked wheels. This technology can aid in technique enhancement and competitive advantage.
Area of Science:
- Sports Science
- Biomechanics
- Rehabilitation Engineering
Background:
- Racing wheelchair instrumentation is limited due to mass constraints.
- Accurate kinetic parameters are crucial for enhancing athlete performance and technique.
- Inertial Measurement Units (IMUs) offer a potential solution for lightweight, in-field biomechanical assessment.
Purpose of the Study:
- To evaluate the feasibility of using IMUs to estimate wheelchair propulsion forces.
- To compare IMU-derived data with reference measurements during simulated race starts and training.
Main Methods:
- IMUs were attached to wheelchairs to capture propulsion data.
- Data from IMU systems were compared against force plate data for race starts.
- Steady-state motion data were analyzed and compared with existing literature.
Main Results:
- Some agreement in kinetic parameters was found under steady-state conditions.
- A linear force-velocity relationship was observed in athlete data.
- IMUs were ineffective with spoked wheels and performed best for measurements in the direction of motion.
Conclusions:
- IMUs can serve as an effective tool for in-field assessment of wheelchair propulsion kinetics.
- While not perfectly accurate, IMUs provide valuable insights for athlete technique and performance.
- Further research is needed to refine IMU application, especially for different wheel types.
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