Blog
Blog
Science-backed guidance, app tips, stories, and company updates from Myworkout.
Featured

Research
Aerobic High-Intensity Intervals Improve VO₂max More Than Moderate Training
Helgerud, J. Høydal, K, Wang, E. Karlsen, T. Berg, P. Bjerkaas, M. It is important to know how different training intensities influence adaptations.
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App guide
How the app works 📲
By using Myworkout GO the next time you exercise, the app will calculate your maximum oxygen uptake (VO₂max) and The heart is our most important muscle.
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Health
The benefit of promoting health at the workplace
Imagine a future where your employees radiate vitality, your workplace culture flourishes, and a shared commitment to wellness sets your company apart. This vision isn’t a distant dream—it’s an achievable reality when you cultivate a culture of health with intention and strategy.
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Research
The Effect of Age on the VO₂max Response to High-Intensity Interval Training
Maximal oxygen consumption (VO₂max) is one of the strongest predictors for cardiovascular health and mortality and is observed to decrease with ~1% per year until old age where the decline may accelerate.
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News
The Norwegian 4x4 Method Is Now Available on Kindle
We’re excited to share an important update: the story and science behind the training method that forms the foundation of the Myworkout app is now available to readers worldwide.
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What is VO₂max?
Learn why oxygen uptake is one of the clearest indicators of cardiovascular capacity.
What are 4x4 intervals?
Understand the research-backed interval method behind Myworkout 4x4.
How does the app calculate biological age?
See how Myworkout estimates VO₂max and biological age from app-based training data.
How to get started with Myworkout 4x4
Start with guided, measurable 4x4 training for personal health and fitness.