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Related Experiment Video

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Lower Limb Biomechanical Analysis of Healthy Participants
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Physiological and Biomechanical Responses Induced by a Continuous Test and an Intermittent Test in Middle-Distance

Saddek Benhammou1,2, Filipe Manuel Clemente3,4,5, Laurent Mourot2,6,7

  • 1Laboratory of Optimizing Research Programs on Physical and Sports Activities, Institute of Physical Education and Sports, University of Abdelhamid Ibn Badis of Mostaganem, Mostaganem, Algeria.

International Journal of Sports Physiology and Performance
|February 26, 2025
PubMed
Summary
This summary is machine-generated.

The 5 x 1-minute intermittent test and the University of Montreal Track Test (UM-TT) yield similar maximal aerobic speed results for middle-distance runners. The intermittent test is perceived as less demanding, making it a potentially less taxing alternative.

Keywords:
biomechanicscontinuous testheart-rate variabilityperceived exertion

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biomechanics

Background:

  • Assessing maximal aerobic speed is crucial for middle-distance runners.
  • Various testing protocols exist, but their physiological and biomechanical impacts may differ.
  • Understanding the acute responses to different maximal aerobic speed tests is essential for optimizing training and testing strategies.

Purpose of the Study:

  • To compare the acute physiological and biomechanical responses of middle-distance runners to two maximal aerobic speed tests.
  • Specifically, to evaluate an intermittent test (5 x 1-minute) against the continuous University of Montreal Track Test (UM-TT).

Main Methods:

  • Twenty trained male middle-distance runners participated in both the UM-TT and the 5 x 1-minute test on separate occasions.
  • Measurements included rating of perceived exertion, peak heart rate, maximal aerobic speed, heart rate variability (time and frequency domains), and spatiotemporal biomechanical parameters.
  • Physiological and biomechanical data were collected pre-exercise and at 5, 30, and 60 minutes post-exercise.

Main Results:

  • No significant differences were observed in maximal aerobic speed (VUM-TT vs V5×1m) or peak heart rate between the two tests.
  • The University of Montreal Track Test (UM-TT) elicited a higher rating of perceived exertion compared to the 5 x 1-minute test.
  • Both tests induced similar changes in heart rate variability, indicating increased sympathetic and decreased parasympathetic activity, and altered biomechanical parameters like stride frequency and duty factor post-exercise.

Conclusions:

  • Both the intermittent (5 x 1-minute) and continuous (UM-TT) tests are effective in eliciting significant physiological and biomechanical changes in middle-distance runners.
  • The 5 x 1-minute test is perceived as less demanding by runners.
  • The intermittent 5 x 1-minute test may serve as a less taxing, yet equally effective, alternative for assessing maximal aerobic speed in this population.