After a week on Optygen I am feeling better. Very fast Nyack Ride today (the first half was 26-32mph, some Cat 2 from hell comes out, busts balls for the first 20 miles and then disappears) and I was surprised at how good I felt, particularly after I rode 115 miles (mostly solo) just yesterday. Today I finished the ride 50-100 meters off the wheels of two guys @ the Hook Mtn. hilltop finish who would have been in a different zip code from me 4 weeks ago. The group I would have ridden that climb with earlier this year was out of sight behind me. That seems like progress.
But here's the problem with assessing the efficacy of a supplement like Optygen: do I feel better because I'm on Optygen, because of all this training, because I THINK I should be able ride harder now that I'm taking Optygen (placebo effect) or all of the above?
I don't know. I don't particularly care. I'm riding better so I'll stick with the program. As I have observed before, the Placebo Effect RULES.