Validation of a global positioning system with accelerometer for canoe/kayak sprint kinematic analysis
This study aimed to validate the use of a Global Positioning System with an accelerometer (GPS-Acc) unit to quantify canoeing kinematic variables. Eight canoe and kayak (200 and 500 m) sprint races were analysed. All the races were recorded sideways by a digital camera that followed the kayak or canoe bow and simultaneously using a GPS-Acc unit recorded the data concerning boat position, velocity, and acceleration. In 200 m races, 50 m splits were established over the entire race distance. In 500 m races, 100 m splits were used, excepting the race start and end, where the splits were divided into two sections of 50 m. The data of the GPS-Acc unit were analysed using a self-developed routine. The agreement between the video and the GPS-Acc analysis was measured regarding all the variables by a Bland-Altman analysis. No differences were found between both methodologies, except for time and velocity at the first 50 m, suggesting thus an agreement between the analysis methods. The GPS-Acc unit is valid for measuring quickly and accurately kinematic variables, mainly boat velocity and stroke rate. However, video analyses may be necessary when a more detailed analysis of the paddling technique is of interest.
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Aiheet: | melonta kajakki sprintti analyysi video kiihtyvyys anturi GPS mittaus- ja tietojärjestelmä laatukriteeri |
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Aihealueet: | kestävyys urheilu tekniset ja luonnontieteet |
Tagging: | Kinematik |
DOI: | 10.1080/14763141.2021.2005128 |
Julkaisussa: | Sports Biomechanics |
Julkaistu: |
2021
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Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |