How to Train for Hyrox with Siren Seiler-Viken

How to Train for Hyrox with Siren Seiler-Viken

From The Athlete's Compass by Athletica

February 26, 2026 · 1h 1m · Episode 117

About this episode

Siren Seiler-Viken discusses training strategies for Hyrox, emphasizing the importance of aerobic development and balancing strength and endurance.

Episode Summary In this episode of The Athletes Compass , the team sits down with Siren Seiler-Viken—researcher, coach, and emerging voice in Hyrox performance science. From her early years as an elite dancer to national-level distance running and now competitive Hyrox racing, Siren shares how sustainability, intelligent planning, and aerobic development form the foundation of hybrid performance. The conversation explores the physiological demands of Hyrox, why running may be the most overlooked performance driver, how to balance strength and endurance without sabotaging adaptation, and why pacing strategy can make or break your race. Whether you're a competitive athlete or new to hybrid fitness, this episode delivers practical, science-backed insight on building performance that lasts. Key Episode Takeaways Running accounts for ~60% (or more) of Hyrox race time — aerobic development is foundational. Wall balls produce the highest physiological strain due to total-body demand + accumulated fatigue. Hyrox is primarily an endurance event with strength elements—not the other way around. Max strength matters—but mostly to raise your ceiling so race loads feel submaximal. Muscle mass…

People in this episode

Host: Athletica

Guest: Siren Seiler-Viken

Topics covered

  • Hyrox training
  • aerobic development
  • strength and endurance
  • pacing strategy
  • hybrid fitness

Keywords

  • Hyrox
  • training
  • aerobic development
  • strength
  • endurance
  • performance
  • pacing strategy

Mentioned in this episode

Organizations: Athletica

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