Anàlisi de l’elecció de la cama d’atac predominant en la prova de 400 metres tanques dels XIII Campionats del Món d’Atletisme Daegu 2011

Amo, José Luis López del; Fresneda, Adrián García; Martínez, Carol; Vieco, Antonio Montoya; Miguel, Pablo González

doi:10.5672/apunts.2014-0983.cat.(2012/4).110.08

Cited by 2 publications

(1 citation statement)

References 1 publication

(1 reference statement)

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“…Data used in the spatio-temporal analysis originate from a variety of sources published between 1968 and 2017 (including Behm, 2016;Ditroilo and Marini, 2000;Glad and Brüggemann, 1990;Hommel and Koszewski, 1999;Lopez del Amo et al, 2012;Morita and Igarashi, 1992;Moriorka, 1997).…”

Section: Methods Applied In the Assessment Of Spatiotemporal Variablesmentioning

confidence: 99%

Pacing Strategy in Men’s 400 m Hurdles Accounting for Temporal and Spatial Characteristics of Elite Athletes

Iskra¹,

Matusiński²,

Otsuka³

et al. 2021

Journal of Human Kinetics

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The final result in a 400 m hurdles race (400mH) is relative to the motor preparation, technique of clearing hurdles as well as the adopted strategy of the race, including temporal aspects (split times in particular parts of the race) and spatial elements (the number of strides taken between subsequent hurdles). The objective of the study was to identify an optimal strategy for the 400mH race, including the stride pattern and split times. Data employed for this study were derived from results of 273 races held during the men’s finals of international events (Olympic Games, World and European Championships) held from 1968 to 2015. To determine the strategies in the race, three main hurdle sections were identified – 1-4H, 4-7H and 7-10H. In each part, the fast (best results), average and slow (worst results) performing groups of hurdlers were distinguished. The analysis of adopted strategies was carried out taking into account 26 variables (main, basic, temporal and spatial). Basic statistical data, correlations and analysis of variance (ANOVA) were used. Results highlight the use of a variety of strategies, of which selection depends, among others, on body composition and the level of motor abilities (speed, speed endurance and explosive strength), as well as hurdling technique. Especially, the endurance strategy appears to be the most effective one, as it is a characteristic of best performances of many hurdlers. The analysis demonstrates that at the highest sports level the strategy of 400 m hurdles should be analyzed individually.

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Section: Methods Applied In the Assessment Of Spatiotemporal Variablesmentioning

confidence: 99%

Pacing Strategy in Men’s 400 m Hurdles Accounting for Temporal and Spatial Characteristics of Elite Athletes

Iskra¹,

Matusiński²,

Otsuka³

et al. 2021

Journal of Human Kinetics

View full text Add to dashboard Cite

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The validity and intra-tester reliability of markerless motion capture to analyse kinematics of the BMX Supercross gate start

Grigg

Haakonssen²,

Rathbone

et al. 2017

Sports Biomechanics

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The aim of this study was to quantify the validity and intra-tester reliability of a novel method of kinematic measurement. The measurement target was the joint angles of an athlete performing a BMX Supercross (SX) gate start action through the first 1.2 s of movement in situ on a BMX SX ramp using a standard gate start procedure. The method employed GoPro® Hero 4 Silver (GoPro Inc., USA) cameras capturing data at 120 fps 720 p on a 'normal' lens setting. Kinovea 0.8.15 (Kinovea.org, France) was used for analysis. Tracking data was exported and angles computed in Matlab (Mathworks®, USA). The gold standard 3D method for joint angle measurement could not safely be employed in this environment, so a rigid angle was used. Validity was measured to be within 2°. Intra-tester reliability was measured by the same tester performing the analysis twice with an average of 55 days between analyses. Intra-tester reliability was high, with an absolute error <6° and <9 frames (0.075 s) across all angles and time points for key positions, respectively. The methodology is valid within 2° and reliable within 6° for the calculation of joint angles in the first ~1.25 s.

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Anàlisi de l’elecció de la cama d’atac predominant en la prova de 400 metres tanques dels XIII Campionats del Món d’Atletisme Daegu 2011

Cited by 2 publications

References 1 publication

Pacing Strategy in Men’s 400 m Hurdles Accounting for Temporal and Spatial Characteristics of Elite Athletes

Pacing Strategy in Men’s 400 m Hurdles Accounting for Temporal and Spatial Characteristics of Elite Athletes

The validity and intra-tester reliability of markerless motion capture to analyse kinematics of the BMX Supercross gate start

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