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Updated: Jun 13, 2026

Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice
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Published on: March 15, 2019

Physiological responses to shuttle repeated-sprint running.

M Buchheit1, D Bishop, B Haydar

  • 1Faculté des sciences du sport, Laboratoire de Recherche Adaptations Réadaptations, Amiens, France. martin.buchheit@u-picardie.fr

International Journal of Sports Medicine
|April 28, 2010
PubMed
Summary
This summary is machine-generated.

Repeated sprints with changes of direction increase running time and physiological load compared to straight sprints. This suggests shuttle sprints enhance training by creating a greater systemic response without significantly altering muscle deoxygenation.

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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Biomechanics

Background:

  • Repeated-sprint ability is crucial for team sports.
  • The impact of changes of direction on sprint performance and physiological responses is not fully understood.
  • Understanding these effects can optimize training protocols.

Purpose of the Study:

  • To investigate the effects of 180-degree changes of direction during repeated sprints on performance.
  • To assess the influence of these changes on cardiorespiratory variables, muscle deoxygenation, and blood lactate levels.
  • To compare repeated sprints with (RSS) and without (RS) changes of direction.

Main Methods:

  • Thirteen team-sport athletes performed 6 repeated maximal sprints under two conditions: RSS (6 x [2 x 12.5 m]) and RS (6 x 25 m).
  • Performance metrics (time, speed decrement), pulmonary oxygen uptake (VO2), vastus lateralis deoxygenation (Hb diff), and blood lactate ([La]b) were measured.
  • Statistical analysis included correlation and qualitative certainty analysis.

Main Results:

  • Mean and best sprint times were significantly higher for RSS compared to RS.
  • % Speed decrement was possibly lower in RSS.
  • Pulmonary oxygen uptake (VO2) and blood lactate ([La]b) were possibly higher in RSS.
  • No significant differences were found in vastus lateralis deoxygenation (Hb diff) between conditions.

Conclusions:

  • Repeated sprint ability is a general athletic quality.
  • Repeated shuttle sprints may provide a greater systemic physiological training load compared to straight repeated sprints.
  • This training method may not specifically increase vastus lateralis muscle loading.