Effect of training on air intake

Question

Say we have two men, A and B, A is trained and B is not. Apart from that they have the same weight and running technique. When they both run at the same speed for 5 km does the amount of air they inhale differ?

As they both need the same amount of energy for the excercise I would think that they need the same amount of oxygen for the chemical processes in the muscles. I found studies that show that the heart rate decreases but I am not sure if this directly shows that they need less air because it could be that they can transport more oxygen per heart beat.

Your question is so broad that probably hundreds of studies address it in some way. Any basic exercise physiology textbook will answer this. — Carey Gregory, Jan 07 '18 at 15:50

score 0 · Accepted Answer · answered Jan 08 '18 at 17:27

Eventually I found something:

Andrew, George M., Carole A. Guzman, and Margaret R. Becklake. "Effect of athletic training on exercise cardiac output." Journal of Applied Physiology 21.2 (1966): 603-608.

Porszasz, Janos, et al. "Exercise training decreases ventilatory requirements and exercise-induced hyperinflation at submaximal intensities in patients with COPD." CHEST Journal 128.4 (2005): 2025-2034.

Effect of training on air intake

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