Zena blog
Train smarter,
backed by evidence.
Practical guidance on strength training and progress — grounded in research, not hype.
WTF is RPE?
RPE sounds like something a physical therapist made up to sound smart. It's not. Here's what it actually means, the scale that makes it useful, and why your gut feeling about it is probably a little bit wrong.
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How to know if your workout is actually working
Sore doesn't mean it worked, and one flat session doesn't mean it didn't. Here's what actually tells you your training is working — and how long to wait before you can trust the answer.
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Getting back into strength training after time off
Your strength didn't vanish the way it feels like it did. Here's what actually happens to your body during time off, and how to restart without overdoing it or underdoing it.
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Signs you're overtraining (and what to do about it)
Overtraining isn't just 'training a lot.' It's a real, researched pattern with specific signs. Here's how to actually tell, and what to do once you know.
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How much protein and carbs you actually need to get stronger
We're all tracking protein for gains — but carbs might be the bigger lever. Here's the actual science, and how your numbers shift between a PB block and a cut.
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How to get better results from your ChatGPT workout plan
I built my first workout plan in ChatGPT. With mixed results. Here's what I'd do differently now (and how it also inspired me to build Zena).
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Progressive overload: a step-by-step guide
Progressive overload is how strength actually happens. Here's what it means, how to apply it without guesswork, and how to tell if it's working.
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