Freedive Prep Breathe-Up
Performance · Advanced · 5 rounds
Slow, long exhales to prepare for a single deep breath-hold.
The 'breathe-up' before a static hold: long slow exhales drop heart rate and prepare the body. End with one full diaphragmatic inhale before the hold. Never hyperventilate.
How to practice
- Inhale for 4 seconds (through the nose)
- Exhale (Long) for 10 seconds (through the mouth)
Benefits
- Drops heart rate
- Calms nervous system
- Prepares for static hold
- Improves dive readiness
When to practice
Pre-dive only. 2-3 minutes of breathe-up before each attempt.
About Freedive Prep Breathe-Up
A 10-second exhale against a 4-second inhale is one of the longest ratios here, and freediving breathe-ups are built this way to lower heart rate and metabolic rate before a dive. Notably, they are not built to load up on oxygen — that is the misconception the sport spent years correcting.
Best for: Dry-land practice only, in the context of proper training and supervision. Nothing here substitutes for a freediving course.
Why it works
Heart rate is not steady within a breath — it rises on the inhale and falls on the exhale, an effect called respiratory sinus arrhythmia. Weighting the breath towards the out-breath (10s out against 4s in) spends more of each cycle in the falling half, which is why a long exhale is the most reliable lever anyone has for bringing heart rate down on purpose. At roughly 4 breaths a minute this is slow enough for that effect to be worth having without being so slow that holding the pace becomes the effort.
What to expect
The first two or three rounds usually feel like the exhale runs out early. That settles as the breath finds the pace — resist the urge to force the last second of air out, and let the out-breath finish rather than pushing it. A full session as timed here runs 70s.
Common mistakes
- Practising standing up, in water, or while driving. Never practice in water alone. Do not hyperventilate before a hold. Sit or lie down every time, and stop at the first sign of dizziness rather than pushing through it.
- Emptying the lungs completely on the long exhale. Finish the 10s out-breath with a little air still in reserve. Squeezing to empty recruits the abdominal wall, which is effort — and effort is the thing the pattern is trying to remove.
- Breathing bigger rather than slower. The target is 4 breaths a minute, not maximum volume. Pulling in as much air as possible on a 4s inhale over-ventilates and produces the light-headedness people mistake for the technique working.
- Switching to mouth breathing when it gets hard. The nasal route is part of the dose — it warms, humidifies and adds resistance, which slows the breath on its own. If the nose cannot keep up, reduce the pace rather than opening the mouth.
How it compares
CO2 Tolerance Hold is exhale-weighted — 8s out against 4s in, holding 8s of the 20s cycle, against exhale-weighted — 10s out against 4s in here. Both are rated advanced, so the choice is about which shape suits you. Read about CO2 Tolerance Hold.
Questions
- How long should I practise Freedive Prep Breathe-Up for?
- A session as timed here is 5 rounds and runs 70s, at roughly 4 breaths a minute. Pre-dive only. 2-3 minutes of breathe-up before each attempt.
- What is the Freedive Prep Breathe-Up pattern?
- inhale for 4 seconds, exhale (long) for 10 seconds — written as 4-10 — repeated 5 times.
- What is the most common mistake with Freedive Prep Breathe-Up?
- Turning the breathe-up into hyperventilation. Blowing off CO₂ before a dive delays the urge to breathe past the point of safety, and it is the mechanism behind shallow-water blackout.
- Is Freedive Prep Breathe-Up safe for everyone?
- No. It is not suitable for pregnancy, heart conditions. Never practice in water alone. Do not hyperventilate before a hold. This is general information, not medical advice — check with a clinician if you are unsure whether it suits you.
Safety
Not suitable for: Pregnancy, Heart conditions.
Never practice in water alone. Do not hyperventilate before a hold.
This is general information, not medical advice. Check with a clinician if you are pregnant, managing a health condition, or unsure whether a practice suits you.