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Paddle Stroke Analysis for Kayakers Using Wearable Technologies.

Long Liu1,2, Hui-Hui Wang1, Sen Qiu2

  • 1Dalian Neusoft University of Information, Dalian 116023, China.

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|February 12, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a sensor-based system for analyzing kayaker performance, improving training by precisely evaluating stroke technique and identifying motion phases. This technology overcomes traditional video analysis limitations for better sport injury prevention and enhanced athletic development.

Keywords:
data fusioninertial sensormotion reconstructionpaddle stroke analysis

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Area of Science:

  • Sports Science
  • Biomechanics
  • Sensor Technology

Background:

  • Proper kayaking technique is vital for performance and injury prevention.
  • Traditional video analysis has limitations like site dependency and occlusion.
  • Objective evaluation of kayaker motion is needed.

Purpose of the Study:

  • To develop a systematic approach for evaluating kayaker training performance.
  • To utilize multiple sensor fusion technology for motion analysis.
  • To provide quantitative feedback for coaches and athletes.

Main Methods:

  • Collected kayaker motion data using miniature inertial sensor nodes.
  • Applied Extended Kalman Filter (EKF) for sensor data fusion and posture updating.
  • Reconstructed kayaker actions using a rigid-body model and performed kinematic analysis.
  • Employed machine learning algorithms to identify stroke cycle phases (entry, pull, exit, recovery).

Main Results:

  • The system provides comprehensive motion evaluation in real on-water conditions.
  • Phase identification accuracy reached 98%, validated against videography.
  • Quantitative kinematic analysis based on joint angles was performed.

Conclusions:

  • The proposed sensor fusion approach offers a viable alternative to traditional methods.
  • This technology enables objective, quantitative feedback for improving kayaking training.
  • The system aids in enhancing athletic performance and reducing sport injuries.