Especially about my lungs and how they react to sustained, but controlled physical exertion. Prior to my debut into the world of racewalking, I had just about accepted the fact that while I was able to walk considerable distances, I would NEVER be able to exceed a certain pace without putting my life at risk.
Yesterday , in the middle of my usual 6 miler, I broke out into a racewalk tempo and kept it up for a little more than a 1/2 mile without developing refractory dyspnea (the real scary stuff). I did however, experience a significant degree of air-trapping , but I was able to effectively reduce some of that discomfort with controlled breathing techniques. More importantly, I was able to recover from that racewalking volley without loosing all of my momentum . I was able to continue on with my walk without stopping to catch my breath. My average pace during that racewalking segment was only in the 10:00 range, but I was able to sustain it for nearly 9 minutes.
I know this pace was slow by racewalking standards, but when you consider that just last year, I actually blacked out while jogging only 100 feet, then I’d say its quite an achievement. It also takes away some of the anxiety I’ve had about pushing myself too hard.
This all leads me to believe , that with persistent and responsible training , I can indeed, increase my walking pace significantly ( at least intermittently) without throwing myself into irreversible bronchospasm. I also see now, that no matter how messed your lungs are, you will find away to adapt.
That’s right; that’s right. Sounds like your legs are becoming more efficient at using what O2 they get and your lungs more efficient at extracting O2 from what air you can get into them.