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首页> 外文会议>Asia-Pacific Congress on Sports Technology >Developing and applying a tri-axial accelerometer sensor for measuring real time kayak cadence
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Developing and applying a tri-axial accelerometer sensor for measuring real time kayak cadence

机译：开发和应用三轴加速度计传感器测量实时皮划艇节拍

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Cadence measurements are commonly used in sport to give athletes and coaches live and delayed information about the frequency of a repetitive movement. Lisa Carrington won gold at the 2012 London Olympics with a cadence of 70 double strokes per minute in the women's K1 200 Canoe Sprint, while Mahe Drysdale won gold in the Men's Single Sculls rowing final with an average cadence of about 35 strokes per minute. These numbers, while interesting, provide important feedback to the athlete about whether they are performing within the cadence range that is most efficient and will provide them with the greatest performance. In cycling, pedaling at low cadences, 60 rpm vs. 100 rpm, reduces gross and physiological efficiency while too higher cadence causes suboptimal muscular coordination. Non-optimal cadences may also be linked with injury. For example, in rowing, high cadence may change pelvic motion, leading to low back pain symptoms. A tri-axial accelerometer was programmed within an electronic circuit to compare kayak paddles movements against set acceleration criteria indicating the completion of a stroke. Upon identifying a stroke, this information was used to calculate the frequency of completed strokes per minute. This frequency information was then transmitted via ANT+TM protocol, received and displayed on an ANT+TM compatible device (e.g. Garmin's Forerunner or Edge GPS watches). A case study demonstrating the application of this technology to kayak performance training was observed. The coach set distances for athletes to train over, with varying cadence requirements while aiming to maintain the kayak's speed. The rationale for this type of cadence based training was that by fixing cadence and asking the athlete to manipulate speed, improvements in stroke length and technique were required.
机译：节奏测量通常用于运动，以提供运动员和教练的实时和延迟有关重复运动频率的信息。 Lisa Carrington在2012年伦敦奥运会上赢得了黄金，在女性的K1 200独木舟冲刺中，每分钟70分钟，而Mahe Drysdale在男子单一小桨赛决赛中赢得了黄金，每分钟平均唱片35张唱片。这些数字虽然有趣，但为运动员提供了重要的反馈，了解它们是否在最有效的节奏范围内执行，并将为他们提供最大的表现。在循环中，低调节点的踩踏，60 rpm与100 rpm，降低毛毛和生理效率，同时过高的节奏导致次优肌肉协调。非最佳节奏也可能与伤害相关联。例如，在划船中，高焦点可能会改变盆腔运动，导致腰痛症状。在电子电路内编程了三轴加速度计，以比较皮划艇划桨运动来抵抗指示行程完成的设置加速标准。在识别笔划后，该信息用于计算每分钟完成笔划的频率。然后通过ANT + TM协议将该频率信息传输，并在ANT + TM兼容设备上显示并显示在ANT + TM兼容设备上（例如Garmin的先行者或边缘GPS手表）。展示了展示将该技术应用于皮划艇性能培训的案例研究。教练为运动员设定距离训练的距离，在旨在保持皮划艇的速度，同时有不同的节奏要求。这种基于Cadence的培训的理由是，通过固定Cadence并要求运动员操纵速度，需要提高行程长度和技术。

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