Why does front crawl make you so tired?


One of the most common questions I get asked by adult swimmers is, 'Why do I get so tired swimming front crawl?

Hi, Mark here - hope you’re doing well.

If you’ve ever climbed out of the pool wondering why front crawl feels so exhausting, you’re definitely not alone.
It’s one of the most common questions I get from adult swimmers:

“Why do I get so tired so quickly when I swim front crawl?”

Most people assume it’s all down to breathing - but it’s usually a mix of timing, body position, and how your kick and pull fit together.
Even confident swimmers can find themselves gasping after just a couple of lengths.

This week, I’ve broken down the real reasons front crawl drains your energy, plus a few small technique tweaks that can make a big difference to your stamina and flow.

👉 Read my full Q&A here – it could make your next swim feel completely different.

If you’d like to go a bit further, I’ve also shared some simple front crawl drills that help you build rhythm and control — perfect for your next pool session.

👉 Discover easy front crawl drills and tips.

Enjoy your swimming this week - and remember, smooth and relaxed always beats fast and frantic!

Happy swimming,
Mark

Swim Teach

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Hi! I'm Mark, creator of Swim Teach

I've been teaching swimming for over 30 years and I built Swim Teach so that I can share all my knowledge, wisdom and experience from the thousands of swimming lessons I have had the pleasure of teaching. Take a look back through my previous newsletters and see what you missed.

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