Detection of Flight Phase in Race Walking Based on Pressure Sensors

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Monitoring the flight phase in race walking is a crucial factor for training, planning and improvement of techniques for athletes in the field. The aim of this work was to develop an embedded system to detect the flight phase during race walking using pressure sensors and an user interface to visualize, analyze and store data. To evaluate the system, pressure data while standing vertical jumps (7 sequences of 10 jumps each) were registered with our system and simultaneously filmed using a camera at 24 frames per second in order to be contrasted using the Kinovea software. The proposed system measured an average flight time of 0.519 ± 0.014 s, while Kinovea presented an average of 0.515 ± 0.009s. This showed that there is no significant difference between the two methods (p > 0.05). Subsequently, tests were conducted during 400 m race walking with a professional athlete throughout three tests, increasing the speed of execution (51 tests, 3 sequences of 17 repetitions each). The results showed an average flight time of 0.023, 0.025 and 0.054 s, according to the speed increase of the tests. Results of the tests show that the system supply reliable measurements with a largest relative error of 3.9% and that it could be an excellent tool for the monitoring and evaluation of race walking techniques.

Original languageEnglish
Title of host publicationProceedings of the 2022 IEEE 40th Central America and Panama Convention, CONCAPAN 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728167152
DOIs
StatePublished - 2022
Event40th IEEE Central America and Panama Convention, CONCAPAN 2022 - Panama City, Panama
Duration: 9 Nov 202212 Nov 2022

Publication series

NameProceedings of the 2022 IEEE 40th Central America and Panama Convention, CONCAPAN 2022

Conference

Conference40th IEEE Central America and Panama Convention, CONCAPAN 2022
Country/TerritoryPanama
CityPanama City
Period9/11/2212/11/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

  • embedded system
  • flight phase
  • instrumented insole
  • pressure sensor
  • race walking

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