Is Plantar Loading Altered During Repeated Sprints on Artificial Turf in International Football Players?

Olivier Girard; Grégoire Millet; Athol Thomson; Franck Brocherie

Is Plantar Loading Altered During Repeated Sprints on Artificial Turf in International Football Players?

Olivier Girard ^{1, 2} Grégoire Millet ³ Athol Thomson ^{1, 4} Franck Brocherie ⁵

1 School of Psychology and Exercise Science

Murdoch University

2 ASPETAR Research and Education Centre

3 ISSUL - Institute of Sport Sciences of University of Lausanne

4 University of Ulster

5 SEP (EA7370) - French Institute of Sport (INSEP), Research Department, Laboratory Sport, Expertise and Performance (EA7370)

Abstract : We compared fatigue-induced changes in plantar loading during the repeated anaerobic sprint test over two distinct distance intervals. Twelve international male football outfield players (Qatar Football Association) completed 6 × 35-m sprints (10 s of active recovery) on artificial turf with their football boots. Insole plantar pressure distribution was continuously recorded and values (whole foot and under 9 foot zones) subsequently averaged and compared over two distinct distance intervals (0-17.5 m vs. 17.5-35 m). Sprint times increased (p < 0.001) from the first (4.87 ± 0.13 s) to the last (5.63 ± 0.31 s) repetition, independently of the distance interval. Contact area (150 ± 23 vs. 158 ± 19 cm 2 ;-5.8 ± 9.1%; p = 0.032), maximum force (1910 ± 559 vs. 2211 ± 613 N;-16.9 ± 18.2%; p = 0.005) and mean pressure (154 ± 41 vs. 172 ± 37 kPa;-13.9 ± 19.0%; p = 0.033) for the whole foot were lower at 0-17.5 m vs. 17.5-35 m, irrespectively of sprint number. There were no main effects of sprint number or any significant interactions for any plantar variables of the whole foot. The distance interval × sprint number × foot region interaction on relative loads was not significant. Neither distance interval nor fatigue modified plantar pressure distribution patterns. Fatigue led to a decrement in sprint time but no significant change in plantar pressure distribution patterns across sprint repetitions.

Keywords : distance interval Repeated-sprint ability plantar loading pressure dis- tribution patterns team sports

Type de document :

Article dans une revue

Domaine :

Sciences de l'Homme et Société / Sport / Physiologie du sport

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https://hal-insep.archives-ouvertes.fr/hal-02134185
Contributeur : Documentation Insep <>
Soumis le : lundi 20 mai 2019 - 13:25:38
Dernière modification le : vendredi 24 mai 2019 - 01:25:27

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