Dynamic apnea training on a turbo trainer (static bike)

[chain reaction physics]

Hi everyone, I am quite new to free diving and have spent several months doing static CO2 and O2 tables but as I intend to spearfish I have started on dynamic training on a static. Sorry for any ignorance...

I have been doing:

• 1min cycle with 30sec breath hold repeats for bout 15mins (pulse at 120 dopping to 65ish)
• Static breath up with 1min cycling whilst holding my breath. ( pulse starting at 90 - warmed up first- then dropping 55) 6 repeats.

My question is once my heart rate drops how far am I through a maximal breath hold.

Hope this makes sense.

 

[hteas]

I think you have to do the breathholds to find out. Heart rate isn't going to provide the answer. Too many individual variations, as well as variations from day to day.