My teenage son was never much of a biker but I followed him in the Breeze Team Car up the long and steep Tormalet on a low geared MTB and I was so astonished and proud that I burst into tears when he got to the top. He just kept twiddling . We are different: some riders are just stronger at pushingbig gears in the saddle: Ulrich, and some riders are happier spinning a lowergear and standing: Armstrong.
The secret of getting up a long steep climb is finding a lowenough gear that you can sustain in the saddle because that is more energy efficientthan standing.
Standing gives you much more power to the pedal (subject toadhesion problems) and you should be able to accelerate or change up butit is bodily inefficient and even Contador flops back on the saddle eventually.
And impatience has a lot do with it. If you just want to getto the top then spinning a low gear will get you there in the saddle. Theproblem is when you think you should be going faster and start standing,rushing, and lactic builds up and you get breathless … and then tortoise and the hareas we have seen with Froome and Contador (although they are of course still bothstonking along).
But it’s a long time since I went up Alpe d’Huez etc so I may be talking rubbish!