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    • Feb 5, 2023

Why is a large aerobic base important for CrossFit®?

⚙️🩸Why is a big aerobic engine essential for CrossFit® performance?


💦 Most typical CrossFit® workouts last somewhere in between 3 and 20 minutes. Although CrossFit® is performed at high intensity, the energy used to drive the muscles is predominantly (70-90%) coming from aerobic sources.


👀 Not only the (genetically determined) maximal oxygen uptake (VO2max) is important here, also the percentage an athlete can use of this VO2max DURING a WOD determines performance. Take a look at a hypothetical example, explained on [slide 3].


Who is going to win the workout DT you think? 👇👇


📖 Read the paper where we got the figure on slide 2 from here: PMID: 11547894

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