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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Sports Act. Living | doi: 10.3389/fspor.2019.00063

Effect of a 16-days altitude training camp on 3000-m steeplechase running energetics and biomechanics: A case study.

  • 1Institut national du sport, de l'expertise et de la performance, France
  • 2Université Paris Nanterre, France
  • 3Fédération Française d'Athlétisme, France

This study aimed to investigate the effect of 16 days of a moderate altitude training camp at moderate altitude on running energetics and biomechanics in an elite female 3000-m steeplechase athlete. The 16-days intervention included living and training at 1600 m. A maximal incremental test was performed at sea level to determine the maximal oxygen uptake (VO2max). Before (pre-) and after (post-) intervention, the participant performed a specific training session consisting of 10 x 400 m with 5 hurdles where oxygen uptake (V ̇O2), blood lactate, stride length and stride rate were measured. A video analysis determined the distance of take-off and landing around the hurdle (DTH and DLH), the velocity of take-off and landing around the hurdle (VTH and VLH), and the maximal hight over the hurdle (MH). The results demonstrated that the mean VO2 maintained during the ten 400 m trials represented 84 to 86 % of V ̇O2max and did not change from pre- to post-intervention (p = 0.22). Mean blood lactate measured on the 6 last 400-m efforts increased significantly (12.0 ± 2.2 vs. 17.0 ± 1.6 mmol.l-1; p < 0.05). Inversely, post-intervention maximal lactate decreased from 20.1 to 16.0 mmol.l-1. Biomechanical analysis revealed that running velocity increased from 5.12 ± 0.16 to 5.49 ± 0.19 m.s-1 (p < 0.001), concomitantly with stride length (1.63 ± 0.05 vs. 1.73 ± 0.06 m; p < 0.001) but not stride rate (3.15 ± 0.03 vs. 3.16 ± 0.02 Hz; p = 0.14). While DTH was not significantly different from pre- to post- (1.34 ± 0.08 vs. 1.40 ± 0.07 m; p = 0.09), DLH was significantly longer (1.17 ± 0.07 vs. 1.36 ± 0.05 m; p < 0.01). VTH and VLH significantly improved following intervention (5.00 ± 0.14 vs. 5.33 ± 0.16 m.s-1 and 5.18 ± 0.13 vs. 5.51 ± 0.22 m.s-1, respectively; both p < 0.01). Finally, MH increased from pre- to post- (52.5 ± 3.8 vs. 54.9 ± 2.1 cm; p < 0.05). A 16-days moderate altitude training camp allowed an elite female 3000-m steeplechase athlete to improve running velocity through a greater glycolytic–but not aerobic–metabolism.

Keywords: Hurdle analysis, Metabolism, woman, biomecanics, Elite

Received: 18 Jul 2019; Accepted: 06 Nov 2019.

Copyright: © 2019 Slawinski, Chiron, Millot, taouji and Brocherie. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Jean Slawinski, Institut national du sport, de l'expertise et de la performance, Paris, France, slawinskijean@gmail.com