Luv2Run wrote:
At some point the benefits disappear. Once you return to sea level, your body starts to adapt to that environment.
Great point - I don't claim to have all the answers, but it is interesting to note at least from runners in the USA, I can't find any examples of where altitude training had huge benefits - in fact the opposite could be true - my favorite example is Pat Porter vrs Craig Virgin - both of very close ability - Porter did most of his training at altitude yet Virgin did most of his training at 1000' (basically sea level) (Miami on a hot day can register a DENSITY altitude of 1500 feet) Although Porter was US XC champion 8 years in a row, he basicallyhadt one speed over 5K and that was 4:40 per mile - Virgin on the other hand ran 10 miles in 46:40 exactly 4:40 per mile but on the roads - so the one area you thought Porter would crush Virgin because of altitude training would perhaps be the track 10,000 - well Virgin ran 27:29 10,000 on the track and Porter never broke 28 on the track (but he did break 28 on the roads) - in Porter's 2 Olympics he finished way below of what he should have finished at least on paper - both times mid pack at just below 4:40 pace - because of Virgin's 27:29 I give the "victory" to Virgin who trained at 1000 feet in Illinois - then the other example is Rodgers vrs Shorter - 2 evenly matched guys in terms of ability and sometimes Shorter beat Rodgers and sometimes the other way around - Shorter trained at 5500 feet and Rodgers at basically sea level in Boston. And fast foward to 6 days ago Jorgenson who's been training at Mam Lakes high elevation, really didn't place all that great relatively speaking at Peachtree- If altitude training was really that effective, she should have won the race - then look at Sage, doing 4:50 mile repeats at altitude yet in Copenhagen fell way short of his capabilities on paper. It seems it definitely doesn't hurt you (altitude training) but don't think it turns you into "super runner" either.