1. What are the two main forces moving the boat forward in canoe sprint?
The two main forces that move the boat forward in canoe sprint are the force applied by the athlete to the paddle and the force applied by the athlete to the foot rest. The first force is the one that the athlete applies to the paddle, while the second force is the one that the athlete applies to the foot rest, which is the spot against which the athlete supports himself/herself with his/her feet. These forces are crucial in propelling the boat forward during a competition. Studies have shown that there are different values of the stroke force for different subjects and under different conditions, but there is no specific data on stroke parameters in a competition distance. However, with the development of technology, various wearable receivers for biomechanical assessment of human movements have become available in sports, which can help in obtaining information about the perfect stroke and optimizing the training process in a competition distance.
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2. What are the stroke force parameters that can be obtained using biomechanical measurement devices in canoe sprint?
The stroke force parameters that can be obtained using biomechanical measurement devices in canoe sprint include the maximum achieved force, average force, force ratio, rate/frequency of force increase, impulse, and impulse frequency. Additionally, stroke power variables such as maximum power achieved/peak power in a stroke, average power, power ratio, and work performed can also be analyzed. These parameters provide a comprehensive understanding of the force and power exerted during paddling strokes, aiding in the optimization of performance and training strategies.
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3. What methods were used to obtain stroke parameters in the research?
In the research, the following methods were used to obtain stroke parameters: heart rate measurements, blood biochemical analysis, and dynamometry. Heart rate measurements were obtained using a Garmin heart rate monitor and a heart rate belt. Blood biochemical analysis involved a portable test strip analyzer to measure lactate levels. Dynamometry was performed using a kayak power meter to measure the force and power of a stroke. The kayak power meter is a specialized device equipped with receivers and capable of recording data in high-speed data mode.
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4. How was data filtering performed for competitive distance on water?
Data filtering was performed by extracting 3814 cells reflecting the power and force values during a competitive distance of 200 meters on water. The process involved marking the end and beginning of strokes, separating brace phases, and recording and analyzing average values of these indicators. This was done for each of the 87 strokes performed by the athlete in the 200-meter distance on water. The power meter recorded six different values in high-speed data mode every 0.01 seconds, including upper and lower arm forces for both left and right strokes, as well as power values for each stroke. These filtered data were then used for further analysis and comparison in the MS Excel application and the online application.
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