I've always wondered about that and it's something that I keep meaning to test on a steep hill with a fairly constant gradient. My road bike has a fairly steep seat angle and I have an old Look Ergostem so I can basically put the bars whereever.... Maybe one day I'll pop the bars up and see what happens.
Training on my old time trial bike I didn't notice any drop in speed or cadence (in a given gear) when changing from the regular bars to the aerobars. Then again, we did spend close to two months getting the position dialed in on a fully adjustable ergometer beforehand, so maybe mine really isn't a valid comparison.
Any body posture change that restrict your respiratory muscles will limit your chest movement and ventilation. Diaphragmatic compression from tight torso-femur angle is just one part of it.
Any body posture change that restrict your respiratory muscles will limit your chest movement and ventilation. Diaphragmatic compression from tight torso-femur angle is just one part of it.
No argument there, I think SteveB was hoping you'd show evidence that lung capacity is a limiter in aerobic power production in healthy (i.e. - no lung disease) humans.
No argument there, I think SteveB was hoping you'd show evidence that lung capacity is a limiter in aerobic power production in healthy (i.e. - no lung disease) humans.
Any body posture change that restrict your respiratory muscles will limit your chest movement and ventilation. Diaphragmatic compression from tight torso-femur angle is just one part of it.
I guess if someone rode with a metered gas mask at FTP in both road and (compressed torso-to-femur angle) TT positions and compared the VE and VO2 between the two positions, we would know, right?
I doubt that I'm the first person to propose that.