Type-specific step characteristics of sprinters during acceleration phase of 100-m race
The purpose of this study was to show the type-specific step characteristics during acceleration phase (0-30 m) of a 100-m race. Fifty-nine male varsity sprinters (10.68 ± 0.22 s) were recorded running in 100-m races using 10 high-speed cameras, and step variables in 0-30 m and maximum speed phase (MSP, 30-60 m) were calculated. Cluster analysis was used to classify the subjects into the step-frequency (SF) or -length (SL) reliant group (i.e., type-specific) as indicators for the ratio of the SF and SL in the MSP. Then, each group was divided into two sub-groups according to the mean speed in MSP (good and poor sprinters). As a result, the sprinters were classified into SL-, SF-, and Mid-groups. In SL-group, good sprinters showed a longer SL from the 7th step to MSP than the poor sprinters. In SF-group, good sprinters showed a higher SF from the 7th step to MSP than the poor sprinters.
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Aiheet: | tekniikka nopeus analyysi dynamometri sprintti kiihtyvyys taajuus liikkeen ominaisuus yleisurheilu pikajuoksu harjoittelu |
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Aihealueet: | tekniset ja luonnontieteet voima ja nopeus urheilu |
Tagging: | Schrittfrequenz Schrittlänge |
Julkaisussa: | ISBS - Conference Proceedings Archive (Konstanz) |
Toimittajat: | T. Y. Shiang, W. H. Ho, P. C. Huang, C. L. Tsai |
Julkaistu: |
Taipei
International Society of Biomechanics in Sports
2013
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Vuosikerta: | 31 |
Numero: | 1 |
Sivuja: | P01-7 ID78 |
Julkaisutyypit: | kongressin muistiinpanot elektroninen lehti artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |