Alexis Batrakoulis, MSc, PhD(c), CSCS, CSPS, NSCA-CPT, ACSM-EP, CPT; ACE-CMES, CHC, CPT; NASM-CES, PES, has been involved in the fitness industry in the past 25 years and currently works as a freelance personal trainer, fitness educator, speaker, author, and subject matter expert in 40 countries across four continents and is based in Greece. He holds a BSc in Physical Education and Sports Science with a concentration in fitness, an MSc in Exercise and Health with a concentration in exercise and obesity and is preparing to earn a PhD in Exercise Physiology with a concentration in exercise and obesity. His research findings are focusing on the effects of high-intensity interval neuromuscular training on health, performance and quality of life in previously inactive adults with obesity. He has also earned numerous professional credentials through ACE, ACSM, NASM, and NSCA. Batrakoulis is a Subject Matter Expert and an International Master Trainer at the American Council on Exercise (ACE) and also is a member of the Professional Standards Committee of EuropeActive, which leads the development of educational standards, oversees the accreditation process for all courses, and registers qualified exercise professionals for all occupational roles in the European fitness sector. More specifically, he has respectively led and contributed to the Technical Experts Groups that developed standards for the occupational roles of Weight Management Exercise Specialist and Pre/Diabetes Exercise Specialist in Europe. He is the Founder and Education Director of the International Obesity Exercise Training Institute (IOETI) delivering live continuing education courses approved by ACE, ACSM, AFAA, ΙFPA, ISSA, NASM, NSCA, NCSF, PTA Global, CanFitPro, Fitness Australia, REPs UK, and EREPs fitness and allied health professionals around the globe. Additionally, he serves as a Member on the Exercise is Medicine Credential Committee, Professional Education Committee and International Health & Fitness Summit Program Committee for the ACSM. Recently received global recognition as the 2018 IDEA Personal Trainer of the Year while he was a Finalist for the same award in 2017. He also is the 2019 IDEA Fitness Innovation Award recipient being recognized as the most innovative fitness educator worldwide. In 2020, he was also named as the NSCA Personal Trainer of the Year. Additionally, he is a recognized Certified Personal Trainer Emeritus (RCPT*E) through NSCA, an NSCA Personal Training Quarterly (PTQ) Editorial Review Panel Member, an NSCA Personal Trainers Special Interest Group (SIG) Executive Council Member, and an NSCA Membership Committee Member. Recently, he was selected to author a chapter in the latest edition of the NSCA’s and ACSM’s Personal Training textbooks.