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Kinetic and kinematic synchronization between blind and guide sprinters.

Ryu Nagahara1

  • 1National Institute of Fitness and Sports in Kanoya, Kanoya, Japan.

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|February 24, 2021
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Summary

Synchronization between blind and guide sprinters is key for performance. Elite pairs showed better synchronization than sub-elite pairs, highlighting its importance in blind sprint events.

Keywords:
ParalympicRunningT11acceleration

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Area of Science:

  • Sports Science
  • Biomechanics
  • Paralympic Sports

Background:

  • Athletic performance in para-athletics relies on effective coordination.
  • Understanding the synchronization dynamics between blind athletes and their guides is crucial for optimizing performance.

Purpose of the Study:

  • To quantify the synchronization and symmetry between blind and guide sprinters during maximal effort sprints.
  • To compare synchronization levels between elite and sub-elite sprinting pairs.

Main Methods:

  • Measurement of ground reaction force (GRF) and sprinting motion during 60-m sprints.
  • Analysis of spatiotemporal variables, GRF, and thigh segment kinematics in elite and sub-elite male blind and guide sprinter pairs.
  • Calculation of phase shifts and cross-correlation coefficients for kinematic data.

Main Results:

  • Elite pairs exhibited high synchronization with no significant phase shifts in thigh kinematics.
  • Sub-elite pairs showed significant differences in some GRF variables and noticeable phase shifts during acceleration.
  • Both elite and sub-elite pairs demonstrated high synchronization in thigh movements during the maximal speed phase.

Conclusions:

  • A higher degree of synchronization between blind and guide sprinters is potentially vital for enhanced sprint performance.
  • Elite performance in blind sprinting may be associated with superior inter-limb and inter-athlete coordination.