Gommaar D’Hulst, an exercise physiologist at ETH Zurich and founder of the WOD Science channel, dives into the fascinating world of HYROX and CrossFit. He discusses key differences in their demands, emphasizing HYROX's endurance focus and the impact of muscle fiber types on performance. Gommaar shares insights from elite athletes’ lab testing, explaining how fatigue affects running economy and the importance of threshold training. He also touches on nutrition strategies, anaerobic power, and the future of functional training metrics, making this a must-listen for fitness enthusiasts!