Static Apnea and blood pressure

Rik said:

Measuring your blood pressure while being anxious about your blood pressure might be not good for your blood pressure.

Frankly, I wouldn't be too worried about a high blood pressure alone barring you from breath-hold diving. I have an similar blood pressure, and I am still diving.

There does exist medication that you can use while freediving, if you would need it in the future.

Do you have any other ideas why you would get a an high blood pressure? If stress is an factor, I would recommend to try to deal with that. There are also other lifestyle options that could lower your blood pressure, but that is something for your general physician to discuss with you.

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I don't really fit in the category of people to have high risk for high blood pressure. My parents weren't affected and as I said I'm average weighted with low body fat, young, don't smoke anymore, don't drink alcohol at all (maybe 1-2 beers in a month), do regular weightlifting, get outside everyday for walks with my dog, don't have a stressful job, definitely eat more healthy than the average 25 year old male....

Yes, and there is a very high probability that the measured high blood pressure is caused by the measurement itself, and not due actual hypertension. This would be the most common cause of "hypertension" at an relative young age.

However, since I can't confirm that over the internet, I should refer you to an G.P.

I just had my 24hrs BP test. About 50% of the values during the day were too high. :hungover
On the other side the values at night were sometimes as low as 100/56. So it seems like I have to take medication, at least for the daytime.
I heard beta blockers are not recommended if you're doing lots of sports and are also not advised if you already have a low pulse. (50-60 during the day)
Is there anything that won't hurt my performance in apnea, running, weight lifting, etc.?

I suggest taking a look at your nutrition.

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I wonder if the blood pressure rise while doing dry apnea and wet apnea is the same. Likewise inhale vs Exhale.

The only time I have measured my BP on a static was a dry exhale which rapidly had my blood pressure in the mid 200's. My wife (who is a doctor) who was monitoring the BP was rather unhappy with this as can be imagined. She wasn't keen on being involved in any further 'experimentation'.

At the time I speculated that, in my case, an exhale dry static invokes a very strong vasoconstrictory response and that there is then a period of time while other elements of the regulatory system slowly kick in and compensate. Bradycardia seems to come much later in the hold for me, perhaps coincident with the CO2 levels starting to rise.

I suspect that this response might be different on inhale or submerged.

It would be an interesting experiment to monitor the HR/BP response for a range of divers each doing a series of holds dry/wet, inhale/exhale.

Phil C