So I ended up passing the paperwork side of the medical and I went for my face-to-face medical the other day. That went excellently and the doctor said I had no problems... and then handed me a peak flow meter and told me to fill it in for a week. Note I've had no problems with cardio or running in the past, and exercise regularly. My brother had childhood asthma but I have had no such problems at any point in my life. I have also done the Wim Hof Method (breathing exercise and breath retention) on and off for the past few years, so I thought my lung capacity was pretty solid. I'm never out of breath, wheezy or cough a lot. No history of hay fever or irritable lungs.
This was until I checked out what the 'normal' score for a 22 year-old male is supposed to be - at the 560-570 mark. I'm 60-70 away from that, and this has me worried for my future career path. I'm not sure if my lungs are under-capacity for someone my age and if this could be a problem for my application, or if I'm just using the peak flow meter wrong and screwing up the technique, or if my lung capacity has gone down a bit since I haven't done the Wim Hof Method in about a year. What do you people think? The last thing I want is some poor technique on a self-administered test to screw things up.
Thank you in advance.
Interesting that you think that there is a technique to one of the simplest tests that there is.
Peak flow is not necessarily about absolute capacity but about how quickly you can blow air out.
As she said "you put your lips together and blow."