Publications by authors named "Ethan Moreland"
Implications of gender-affirming endocrine care for sports participation.
Ther Adv Endocrinol Metab
June 2023
Article Synopsis
- Transgender individuals often use gender-affirming hormone therapy (GAHT) to help align their physical characteristics with their gender identity, which could enhance their participation in sports despite typically low involvement rates among this community.
- Although GAHT affects athletic performance differently among trans men and trans women, current research lacks sufficient quality and depth to draw definitive conclusions about its overall impact on sports performance.
- Major gaps in the research include the need for long-term studies, larger sample sizes, and better controls for factors like body composition, all of which are crucial for developing fair sports policies and guidelines for transgender athletes.
Article Synopsis
- A study identified 28 genetic variations linked to strength athletes, but further research is needed to confirm these findings through genotype-phenotype studies.
- The research involved 53 elite Russian and 100 sub-elite Japanese weightlifters, checking how specific genetic markers affected their lifting performance.
- Four particular genetic alleles were found to correlate positively with better weightlifting results, and those with more strength-related alleles consistently performed better in competitions across both Russian and Japanese athletes.
Purpose: Circulating testosterone levels are a heritable trait with anabolic properties in various tissues, including skeletal muscle. So far, hundreds of single nucleotide polymorphisms (SNPs) associated with testosterone levels have been identified in nonathletic populations. The aim of the present study was to test the association of 822 testosterone-increasing SNPs with muscle-related traits (muscle fiber size, fat-free mass and handgrip strength) and to validate the identified SNPs in independent cohorts of strength and power athletes.
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- Multiple genetic variants, particularly the rs8111989 polymorphism, have been studied for their potential influence on athletic performance, especially in endurance and power sports.
- This study focused on Russian and Lithuanian athletes to determine if the rs8111989 variant is linked to power athlete status.
- Results showed no significant differences in the allele or genotype frequencies between power athletes and non-athletes, indicating that this genetic marker is not associated with elite performance in anaerobic sports.
Moreland, E, Borisov, OV, Semenova, EA, Larin, AK, Andryushchenko, ON, Andryushchenko, LB, Generozov, EV, Williams, AG, and Ahmetov, II. Polygenic profile of elite strength athletes. J Strength Cond Res 36(9): 2509-2514, 2022-Strength is a heritable trait with unknown polygenic nature.
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