Running Dynamics in Male 400m Sprint Event

Grgić, Danijela; Babić, Vesna; Blažević, Iva

doi:10.31926/but.shk.2019.12.61.2.37

Cited by 1 publication

(2 citation statements)

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“…It can be stated that these changes were influenced by increasing fatigue (Yousif et al, 2019). Similar relationships were found in the analysis of 400-m sprints (Graubner and Nixdorf, 2009;Grgic et al, 2019). The flight phase time did not change, with a slight tendency to increase at the end of the trial.…”

Section: Discussionsupporting

confidence: 73%

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Kinematics of Two Special Endurance Trials: A Methodological Contribution to 400-m Performance

Mackala,

Omelko,

Mroczek

et al. 2024

Journal of Human Kinetics

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This study aimed to determine changes in the kinematics of sprint steps based on progressive muscular fatigue during high-intensity 350-m and 500-m trials. Twelve elite healthy male 400-m sprinters with a minimum of six years of regular sprint training experience were recruited. They were divided into two groups for the experiment: a 350-m and a 500-m trial group. Time and kinematics of sprinting step motion for specific segments, i.e., starting to final stages of each trial, were obtained using the Opto Jump-Microgate optical measurement system. The starting phase of each sprint was defined as the section without muscular fatigue (noF), and the final phase was the sprint under muscular fatigue (onF). Each last 25 m of the 50-m evaluated section containing ten complete running steps was selected for detailed statistical analysis. Various patterns of temporal and spatial variables of sprinting efforts were observed between 350-m and 500-m trials. Each trial result was influenced by significant individual changes (p < 0.05). All variables indicated that the two distances differed significantly in terms of running kinematics. This was confirmed by significant differences in the mean step frequency (p < 0.001), which presented a difference of 11.75%, and the mean step speed (p < 0.001). As a result of these changes, a hierarchical intermittent endurance training pattern was defined. The research concluded that special endurance (intermittent sprints) based on 350 m differed significantly in kinematics from sprints over 500 m. Therefore, it should be assumed that the distance of 350 m is more similar in its kinematics to the 400-m competition. This should encourage coaches and athletes to apply a 350-m distance in training developing special endurance, especially in the pre-competitive and competitive periods.

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Section: Discussionsupporting

confidence: 73%

“…The 400-m sprint is one of the most demanding athletic events, an intermediate event between the sprint of shorter distance and middle distance runs (Grgic et al, 2019). This event maximally stimulates the anaerobic and aerobic energy systems (Arcelli et al, 2008;Zouhal et al, 2010).…”

Section: Introductionmentioning

confidence: 99%