Swimming | How To Train For A Triathlon Swim

Originally Published Jun 29, 2017

Training to increase your lactate threshold is essential when you’re preparing for long distance, triathlons and endurance swimming.  The way to do this is to increase your training volume and then do steady-state workouts just under your threshold, or intervals, with bursts of effort over the threshold and then a rest period.


Steady pace training is fairly slow, continuous long-distance swimming, where the aerobic system is maintained at a constant level of energy demand and as close to your lactate threshold as possible.  

So before you train for speed, you should get volume by increasing your total swimming distance every week, even if you’re swimming slowly to achieve it.  A good plan is to do some interval training sets every week and mostly steady-state training for the rest of your swimming workouts for long distance.

Ladder repetitions

Start by doing some repetitions of 400 metres and more. Your goal is to build up your endurance and increase your ability to do longer repetitions, so 800m and 1000m are good distances to aim for.

A good way to organise your repetitions is to swim to the ladder system. The ladder method is a set of repetitions with the distance increasing on the way up and decreasing on the way down.  This would give you a set like this for example 100 m 200 m 400 m 800 m 400 m 200 m 100 m.

Triathlon Swimming Technique

Drills are an important part of your weekly training and you should include them in every session.  You also need to develop a technique for looking about you to find gaps in the crowd to find the best direction to swim and practise swimming in a wetsuit.

Training in open water such as a local lake or the ocean, in the sort of weather you can expect on race day, is something you should also bear in mind.  Finally, the best technique for freestyle in open water, long distance and triathlons is to have a fast time to full traction and a low leg kick rhythm.

Be sensible about over-training and if you’re a triathlon beginner build up your distance swimming gradually. Swimming is a great sport that boosts your whole health and well-being, so enjoy the challenge and get out there and show them what you’ve got!


The information provided on this blog is intended for educational and informational purposes only. It is not intended to be a substitute for professional advice or treatment. Always seek the advice of a qualified professional with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this blog.

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