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Gender Diversity in Sports

An online learning environment for learning about gender diversity as it pertains to sports, physical fitness, and athletic participation.

A Conversation with Joanna Harper and Dr. Siddhartha Angadi

 Introduction 

In this section, we will discuss the research into hormone replacement therapy and its effects on transgender runners with scientists Ms. Joanna Harper and Dr. Siddhartha Angadi.

Meet the speakers

A picture of Joanna Harper

In 2015 Joanna Harper published the first peer-reviewed article containing quantitative analysis of the athletic performance of transgender athletes with differing hormonal values.  Since then she has collected subsequent retrospective data on transgender athletes and is currently engaged in a prospective analysis of two transgender athletes. She is the author of Sporting Gender: The History, Science and Stories of Transgender and Intersex Athletes. Harper has written numerous articles on gender diverse athletes in both peer-reviewed publications and in the Duke University Law Review as well. Perhaps the best-known of these articles is entitled “The Fluidity of Gender and Implications for the Biology of Inclusion for Transgender and Intersex Athletes.” Harper has served as an advisor to the IOC on matters of gender diversity and sport since 2015. She was also a witness for the IAAF at both the Dutee Chand and Caster Semenya cases before the Court of Arbitration for Sport. Harper speaks frequently at scientific and professional conferences around the world on transgender and intersex athletes.  In the fall of 2019 Harper relocated to Loughborough University where she studies transgender athletic performance.

A picture of Doctor Siddhartha Angadi

Dr. Siddhartha Angadi is an assistant professor at the College of Health Solutions at ASU and a Fellow of the American College of Sports Medicine. A cardiovascular physiologist by training he received his PhD at ASU and was a post-doctoral scholar at UCLA. He has published 36 peer reviewed articles, 4 book chapters and his research has been featured in popular lay publications like the New York Times, Science and Time.com. Since 2013 he has received $3 million in research funding from state and federal grant agencies. 


Our conversation with Joanna and Dr. Angadi

Learn more:

To develop a more thorough understanding of the ideas presented in this episode, check out Joanna's book, Sporting Gender, and read through the following articles by both Joanna and Sid:


​Articles by Joanna and Sid: