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SmartSwim, a Novel IMU-Based Coaching Assistance.
Mahdi Hamidi Rad1, Vincent Gremeaux2,3, Fabien Massé4
1Laboratory of Movement Analysis and Measurement, EPFL, CH-1015 Lausanne, Switzerland.
Sensors (Basel, Switzerland)
|May 20, 2022
Summary
SmartSwim, a new feedback system using inertial measurement units (IMUs), significantly improved competitive swimmers' training progress and performance. Coaches using IMU data achieved better results than traditional methods.
Area of Science:
- Sports Science and Biomechanics
- Performance Analytics
Background:
- Traditional swimming coaching relies on qualitative observation, which may miss complex performance details.
- Objective, quantitative performance evaluation is crucial for effective swimmer development.
- Inertial Measurement Units (IMUs) offer a viable tool for objective swimming performance assessment.
Purpose of the Study:
- To introduce SmartSwim, a novel performance evaluation feedback system utilizing IMUs.
- To investigate the impact of SmartSwim feedback on swimmers' weekly training progress.
- To compare the effectiveness of IMU-based feedback against traditional coaching methods.
Main Methods:
- 10-week study involving 15 competitive swimmers, divided into experimental (SmartSwim) and control groups.
- Weekly performance measurements using a Sacrum IMU to generate SmartSwim reports.
- Coaches in the experimental group used SmartSwim reports to adjust training strategies.
Main Results:
- The experimental group demonstrated superior performance compared to the control group across individual sessions and overall.
- A higher number of swimmers in the experimental group showed significant improvements in average lap time.
- The experimental group exhibited significantly lower lap times from the sixth session onwards and more consistent performance records.
Conclusions:
- SmartSwim provides quantitative assessment of swimming performance, enhancing coaching efficiency.
- IMU-based feedback systems like SmartSwim can lead to more effective training and improved swimmer outcomes.
- This technology offers a valuable tool for data-driven athletic development in competitive swimming.

