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Exercise and Muscle Performance01:27

Exercise and Muscle Performance

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Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running
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Sex Differences in Endurance Running.

Thibault Besson1, Robin Macchi2, Jeremy Rossi1

  • 1Univ Lyon, UJM-Saint-Etienne, Inter-University Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Étienne, France.

Sports Medicine (Auckland, N.Z.)
|February 5, 2022
PubMed
Summary
This summary is machine-generated.

Females exhibit unique running biomechanics, substrate utilization, and fatigue resistance compared to males during endurance running. These physiological differences offer advantages in ultra-endurance events, though often counterbalanced by other factors.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Human Biomechanics

Background:

  • Growing female participation in endurance running necessitates understanding sex-specific physiological responses.
  • Existing research often focuses on maximal oxygen uptake (VO2max), overlooking other crucial sex differences during prolonged exercise.

Purpose of the Study:

  • To review and discuss sex differences in running biomechanics, economy, substrate utilization, muscle characteristics, neuromuscular fatigue, thermoregulation, and pacing strategies.
  • To highlight areas lacking sex-comparative research, particularly concerning biomechanics during fatigue and recovery.

Main Methods:

  • Narrative literature review synthesizing existing research on sex differences in endurance running.
  • Analysis of studies examining biomechanics, physiological economy, substrate metabolism, muscle damage, fatigue, and pacing.

Main Results:

  • Females and males show similar running economy and endurance capacity (percentage of VO2max sustained).
  • Females display distinct biomechanics (e.g., greater hip/knee motion), enhanced fatty acid utilization, carbohydrate preservation, more consistent pacing, and reduced neuromuscular fatigue.
  • Anatomical differences (e.g., wider pelvis, larger Q-angle) partly explain biomechanical variations.

Conclusions:

  • Sex-specific physiological and biomechanical traits may confer advantages to females in ultra-endurance running.
  • Factors like lower oxygen-carrying capacity and higher body fat percentage in females can counterbalance these advantages.
  • Further research is needed on sex differences in running biomechanics under fatigue and during recovery.