Elite long sprint running: A comparison between incline and level training sessions

Slawinski, Jean, Dorel, Sylvain, Hug, Francois, Couturier, Antoine, Fournel, Valentin, Morin, Jean-Benoit and Hanon, Christine (2008) Elite long sprint running: A comparison between incline and level training sessions. Medicine and Science in Sports and Exercise, 40 6: 1155-1162. doi:10.1249/MSS.0b013e3181676681

Author Slawinski, Jean
Dorel, Sylvain
Hug, Francois
Couturier, Antoine
Fournel, Valentin
Morin, Jean-Benoit
Hanon, Christine
Title Elite long sprint running: A comparison between incline and level training sessions
Journal name Medicine and Science in Sports and Exercise   Check publisher's open access policy
ISSN 0195-9131
Publication date 2008-06
Year available 2008
Sub-type Article (original research)
DOI 10.1249/MSS.0b013e3181676681
Volume 40
Issue 6
Start page 1155
End page 1162
Total pages 8
Place of publication Philadelphia, PA United States
Publisher Lippincott Williams and Wilkins
Collection year 2009
Language eng
Formatted abstract
Purpose: We compared incline and level training sessions as usually used in elite 400-m runners through stride kinematics and muscular activity measurements.

Nine highly trained 400-m runners (international and French national level) performed two maximal velocity sprints: 1) 300-m on level ground (LEV) and 2) 250-m on an incline ground (INC) characterized by a mean ± SD grade of 5.4 ± 0.7%. Kinematics (250 Hz) and electromyography parameters (root mean square [RMS] and integrated electromyography [iEMG] measurements) were analyzed (from 40- to 50-m phases).

Results: INC induced a decrease in running velocity compared to LEV (6.28 ± 0.38 vs 7.56 ± 0.38 ms -1) explained by a reduction in stride length (-14.2%) and stride rate (-7.4%) and by an increase in push-off time (+26.4%). Kinematics analysis indicated that the lower limbs were more flexed during INC running. Concerning the level of activity of the lower limb muscles, the major findings pointed out the decrease in RMS for semitendinosus and biceps femoris muscles during the contact phase and for vastus lateralis during its concentric phase. However, iEMG of both semitendinosus and biceps femoris muscles remained constant during both contact and push-off phases.

Conclusion: Our results are clearly different from those of previous studies carried out at similar absolute velocities in both LEV and INC conditions, which were not the case in this study. The lower running velocity marking INC running was associated with a decrease in the activation of the hamstrings. Trainers should particularly consider this lower level of activation of the hamstrings muscles during INC maximal sprint.
Keyword Maximal velocity running
Athletics training
Muscle Activation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Health and Rehabilitation Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 28 Aug 2013, 16:45:51 EST by Francois Hug on behalf of School of Health & Rehabilitation Sciences