Sex Differences in VO_2max and the Impact on Endurance-Exercise Performance.

Area of Science:

• Sports Science
• Exercise Physiology
• Endurance Performance

Background:

• Women's participation in endurance events has surged, yet they remain underrepresented in sports science research.
• Despite significant improvements, a performance gap persists between male and female endurance athletes.
• The male advantage is often attributed to higher maximal oxygen uptake (VO₂max).

Purpose of the Study:

• To review current knowledge on sex differences in physiological factors impacting VO₂max.
• To specifically examine sex-based differences in oxygen delivery and its effect on endurance performance.
• To highlight the need for more research into female physiology for performance enhancement.

Main Methods:

• Literature review of existing sports performance research.
• Analysis of physiological factors contributing to VO₂max, focusing on oxygen delivery.
• Comparison of male and female physiological responses to endurance exercise and training.

Main Results:

• While men generally have higher VO₂max, the rate of improvement in women's marathon records is faster.
• Oxygen delivery is a key limiting factor for VO₂max, but sex differences in this area are not well-researched.
• Understanding female-specific adaptations to training is crucial for improving women's endurance performance.

Conclusions:

• Further research into female physiology and sex differences is essential to optimize training and performance.
• Investigating sex differences in oxygen delivery can elucidate performance gaps and inform targeted interventions.
• Closing the research gap will enable better strategies for enhancing women's endurance exercise capacity.