LUNG SQUEEZE PREVENTION GUIDE

15 Recommendations for Lung Squeeze Prevention

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Listen to Frank’s Freedive Cafe interview …

LUNG SQUEEZE PREVENTION GUIDE

 

In Frank Pernett’s interview he mentioned a guide he produced for those suffering from lung squeezes or trying to prevent them. Here it is…

The full transcript of Frannks interview can be read HERE!

This is a practical guide on how I dealt with lung squeeze, but every case is different.

My first advice is to have a thorough medical checkup to rule out other causes of hemoptysis (coughing blood) and pulmonary edema.

What finally worked for me was a long-term approach and consistency, avoiding what I found that was a risk factor for me.

This was my personal approach:

1. Stopped lung packing and reverse packing.


2. Stopped empty lungs training in the pool.


3. Stopped empty lungs stretching.


4. I found a relatively deep lake (-30 mts) and trained regularly on full lungs. Starting
with very shallow depths (I started with -5 m dives).


5. Switched to FRC training for dynamic and static in the pool.


6. I trained CO2 tables at the beginning of the season
to reduce the contractions without hyperventilation. It’s bad to have strong contractions at depth, but it’s worse to hyperventilate.


7. Daily stretching of the thorax with normal breathing.


8. Started lifting weights with a lot of repetitions (3 sets of 30), working also the chest
expansion. Initially with normal breathing but mixing 1 of the sets with apnea. Close to the competition season all 3 sets were in apnea with full lungs.


9. Stopped any exercise involving the chest 10 days before going for serious depth
training.


10. Stopped drinking wine one week before depth training (any food or plant-based medicine that
affects the thickness of the blood should be avoided).


11. The first deep dive of the season was based on my log records and I always chose a
depth that was safe for me.

In the beginning, I found that I had a strange feeling in my chest at -29 meters; so, I decided to do a non-line dive falling completely horizontal from 25 and stopping at the first sign of discomfort, the reached depth was used as my safe depth to start the depth training.

With time this discomfort moved down to -53 meters.

12. Long warm up with 9 dives before the deep dive:

5 dives to 5 meters with no hang.
2 dives to 7 meters with no hang.
1 dive to 10 meters with no hang.
1 dive to 15 meters with a hang limited by contractions (this should be a zero contractions dive) using the same setup as the deep dive (just nose clip for me).

Usually, in the third dive of the season, I cut the warming up to 7 dives (5 dives to 5 meters, 1 dive to ten, and 1 hanging at around 18 or 20) and after the fifth day I just needed a very short warm up (1 dive to 5 meters, 1 dive to 10 meters and 1 dive with hanging around 20 meters.

The last warm-up dive should be very slow and calm, without any contractions).

13. Avoid hyperventilation during the breath-up, I inserted some short apneas to avoid decreasing my CO2 levels (that’s why I think training CO2 tolerance is important).

14. Included in my pre-dive visualization a very smooth turn in the bottom plate, and short and non-forceful pulls (in FIM) when returning.

15. I mixed my depth disciplines so usually my first 5 deep dives of the season are CWT,
then I use CWT – CNF – FIM in that order if possible.

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