This study assessed whether the Useful Mechanical Power Output (PMO) estimated using the Velocity Perturbation Method (VPM) would be a valid biomechanical measure of performance enhancement in sprint kayaking that would not be affected by changes in environmental conditions. Twelve national-age K1 sprint kayakers performed twelve trials each of 60m maximal effort sprints within two separate sessions, six of which were conducted while towing a hydrodynamic object of known resistance. The opposing wind condition in each trial was recorded and classified as either mild or strong. The sprint velocities at towing-free and towing conditions under similar wind velocities and the resistance of the hydrodynamic object were matched to estimate the PMO. Non-significant differences in PMO between mild and strong wind conditions were observed. However, the typical error of PMO in both wind conditions were larger than 26% of the mean values, which hindered the ability of the PMO to detect the smallest worthwhile enhancement that would be valuable for high-performance kayak sprinting.
Mourao Rossi, Marcel; Shamsul, Nur Sabrina; Kudo, Shigetada; and Boey, Desmond
"IS THE VELOCITY PERTURBATION METHOD SUITABLE FOR THE CALCULATION OF THE USEFUL MECHANICAL POWER OUTPUT OF SPRINT KAYAKERS IN OUTDOOR CONDITIONS?,"
ISBS Proceedings Archive: Vol. 40:
1, Article 119.
Available at: https://commons.nmu.edu/isbs/vol40/iss1/119