The second-to-fourth digit ratio (2D:4D) does not distinguish licensed taekwondo athletes from age-matched sedentary individuals

Key Points

• The digit ratio does not distinguish between taekwondo athletes and sedentary individuals, implying similarities in physical performance indicators.
• No significant difference in the second-to-fourth digit ratio was observed, challenging assumptions about its relevance as a biomarker.
• The analysis involved young adults, thereby enhancing the relevance of findings within this specific age group.
• These results suggest the digit ratio may not be a reliable indicator of athletic ability in combat sports like taekwondo.