Duty Factor Is a Viable Measure to Classify Spontaneous Running Forms

Duty Factor Is a Viable Measure to Classify Spontaneous Running Forms

Bibliografiske detaljer
Parent link:Sports
Vol. 7, Iss. 11.— 2019.— [233, 8 p.]
Institution som forfatter: Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение физической культуры
Andre forfattere: Patoz A. Aurelien, Gindre C. Cyrille, Thouvenot A. Adrien, Mourot L. Laurent, Hebert-Losier K. Kim, Lussiana T. Thibault
Summary:Title screen
Runners were classified using two different methods based on their spontaneous running form: (1) subjectively using the V®score from the Volodalen® scale, leading to terrestrial and aerial groups; and (2) objectively using the duty factor (DF), leading to high (DFhigh) and low (DFlow) DF groups. This study aimed to compare these two classification schemes. Eighty-nine runners were divided in two groups using the V®score (VOL groups) and were also ranked according to their DF. They ran on a treadmill at 12 km·h-1 with simultaneous recording of running kinematics, using a three-dimensional motion capture system. DF was computed from data as the ratio of ground contact time to stride time. The agreement (95% confidence interval) between VOL and DF groups was 79.8% (69.9%, 87.6%), with relatively high sensitivity (81.6% (68.0%, 91.2%)) and specificity (77.5% (61.6%, 89.2%)). Our results suggest that the DF and V®score reflect similar constructs and lead to similar subgroupings of spontaneous running form (aerial runners if DF < 27.6% and terrestrial runners if DF > 28.8% at 12 km·h-1). These results suggest that DF could be a useful objective measure to monitor real-time changes in spontaneous running form using wearable technology. As a forward-looking statement, spontaneous changes in running form during racing or training could assist in identifying fatigue or changes in environmental conditions, allowing for a better understanding of runners.
Sprog:engelsk
Udgivet: 2019
Fag:
электронный ресурс
труды учёных ТПУ
running
biomechanics
running form
бег
биомеханика
Online adgang:https://doi.org/10.3390/sports7110233
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663755

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