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Accelerometer profile of motion of the pelvic girdle in butterfly swimming

Artykuł
Czasopismo : Acta of Bioengineering and Biomechanics   Tom: 20, Zeszyt: 1, Strony: 159-167
2018 angielski
Liczba arkuszy: 0,8
Identyfikatory
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Cechy publikacji
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  • Oryginalny artykuł naukowy
  • Zrecenzowana naukowo
Dyscypliny naukowe
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Nauki o kulturze fizycznej
Słowa kluczowe
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Abstrakty ( angielski )
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Purpose: The aim of the study was to develop a method to measure and analyse kinematics of movement of the pelvic girdle in butterfly swimming in order to support trainimg of technical skills Methods: A device for recording triaxial accelerations and triaxial rotational angular velocities was mounted on the dorsal part of the pelvic girdle of athlete The measurements were performed in ten elite butterfly swimmers (age :23.1 +/- +/- 3.7 years, body height 187.6 +/- 4.3 cm, body mass 83.4 +/- 6.33 kg) The task of the athlete was to swim one length of short course pool at maximal intensity Individual mean graphical and numerical profiles of the kinematics of the movement of the pelvic girdle was computed, within the average cycle based on five consecutive cycles Results: Statistical analysis of numerical individual parameters of profiles of the athletes studied revealed statistically significant differences between the swimmers Statistically significant correlations were also found between personal best times in 50 m swimming (r = -0.76, p < 0.05) and 100 m swimming (r = -0.76, p < 0.05) and duration of the part of the cycle connected with the declme m velocity from maximum translational motion velocity obtained during propulsion with the upper and lower limbs to minimum value of the velocity obtained before the beginning of propulsion only with the lower limbs Conclusion: The proposed measurement method, presentation and analysis of the profile of the pelvic girdle motion in butterfly swimming represents a good tool for fast and effective qualitative and quantitative biomechamcal evaluation of movement technique components.
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