Study on the Technical Variability of 50m Backstroke Athletes at Different Speeds
This paper uses the Tritonwear wearable device to monitor the 50 m training data of the backstroke athletes,aiming to explore the ways to optimize the technology and improve the competitive performance.Professional backstroke swimmers are monitored by systematic training for eight weeks,collecting detailed data on frequency of stroke,stroke efficiency,heart rate and body posture.The study has found:Faster stroke frequency is usually accompanied by faster speed;The correlation between speed and stroke is very weak and not significant(r=0.011,P>0.05);There is no significant correlation between stroke count and maximum heart rate(r=0.060,P>0.05);There is a significant negative correlation between the amplitude and the grade(r=-0.958,P<0.01);The linear regression equation between the stroke frequency and the speed is y=11.6x+19.27;The linear regression equation between row amplitude and velocity is y=85.85x-136.33.In the 50 meter backstroke,there is a variability in the technology of 50 meter backstroke athletes at different speeds.Technical training can optimize the frequency range and improve the swimming speed.
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