New Devices for Measuring Forces on the Kayak Foot-Bar and on the Seat During Flat-Water Kayak Paddling: a technical report.
2014 (English)In: International Journal of Sports Physiology and Performance, ISSN 1555-0265, Vol. 9, no 2, 365-70 p.Article in journal (Refereed) Published
The purpose was to develop and validate portable force-measurement devices for recordings of push and pull forces applied by each foot to the foot-bar of a kayak, and the horizontal force at the seat. A foot-plate on a single-point force transducer mounted on the kayak foot-bar underneath each foot allowed the push and pull forces to be recorded. Two metal frames interconnected with four linear ball-bearings and a force transducer allowed recording of horizontal seat force. The foot-bar force device was calibrated by loading each foot plate with weights in the push pull direction perpendicular to the foot plate surface while the seat force device was calibrated to horizontal forces with and without weights on the seat. A strong linearity (r2=0.99-1.0) was found between transducer output signal and load force in the push and pull directions for both foot-bar transducers perpendicular to the foot plate and the seat-force measuring device. Reliability of both devices was tested by means of a test-retest design. The coefficient of variation (CV) for foot-bar push and pull forces ranged from 0.1 to 1.1% and the CV for the seat forces varied between 0.6 - 2.2%. The present study opens up for new investigations of the forces generated within the kayak and ways to optimize kayak paddling performance.
Place, publisher, year, edition, pages
2014. Vol. 9, no 2, 365-70 p.
force recording, seat force, foot-bar force, racing kayak
Sport and Fitness Sciences
Research subject Medicine/Technology
IdentifiersURN: urn:nbn:se:gih:diva-3110DOI: 10.1123/ijspp.2012-0333PubMedID: 23917040OAI: oai:DiVA.org:gih-3110DiVA: diva2:677457