Evaluating On-Water Kayak Paddling Performance Using Optical Fiber Technology

This study aimed to evaluate on-water kayak paddling performance using a custom-built instrumented paddle system based on optical fiber technology. The system was developed to measure real-time handgrip loading and blade loading distribution during on-water kayaking. Thirty female participants (15 competitive and 15 recreational kayakers) were asked to sprint across a 50-meter swimming pool as fast as they could in a kayak using the instrumented paddle provided. The loading characteristics of the right handgrip and 9 areas of each blade were recorded and analyzed via a customized software. Noticeable differences in timing and loading variables were observed between the two groups. Compared to recreational paddlers, competitive paddlers were characterized by shorter water phase duration (p <; 0.05), higher handgrip loading (p <; 0.05), and higher blade force (p <; 0.05) and impulse (p <; 0.05) in most regions of the blade. In conclusion, this study successfully developed an instrumented paddle system using optical fiber sensors to measure on-water kayak paddling performance. The results can provide useful information for coaches and athletes to obtain performance feedback and to monitor training.