This paper presents a prototype machine working as a kayak ergometer, specially designed to closely reproduce the athletic performance during a training K1 indoor session. Drag and inertia actions on paddles are reproduced through a fan connected to the movement of the paddle-bar. The resistance action can be adjusted by regulating the air intake with a shutter, to compensate for size and weight of the paddler. Paddle action, simulated by an instrumented bar with strain gauges at both ends, pulls the rotating fan by means of ropes rolling up on pulleys. Load cells are mounted in correspondence of the bearings of the pulleys, and an encoder is mounted on the fan shaft to measure the rotational speed. This system is particularly suitable to evaluate the paddling performances and to refine the technique of strokes and style.
Evaluation of Paddling Performances through Force Acquisitions with a Specially Instrumented Kayak Ergometer
MIMMI, GIOVANNI;ROTTENBACHER, CARLO EUGENIO ALESSANDRO;REGAZZONI, MANUEL
2006-01-01
Abstract
This paper presents a prototype machine working as a kayak ergometer, specially designed to closely reproduce the athletic performance during a training K1 indoor session. Drag and inertia actions on paddles are reproduced through a fan connected to the movement of the paddle-bar. The resistance action can be adjusted by regulating the air intake with a shutter, to compensate for size and weight of the paddler. Paddle action, simulated by an instrumented bar with strain gauges at both ends, pulls the rotating fan by means of ropes rolling up on pulleys. Load cells are mounted in correspondence of the bearings of the pulleys, and an encoder is mounted on the fan shaft to measure the rotational speed. This system is particularly suitable to evaluate the paddling performances and to refine the technique of strokes and style.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
