Easy Ways to Improve Your Breathing in Cycling, Running & Swimming

The term Dead Space refers to the air that is moved in and out of the mouth and trachea that does not take part in oxygen and CO2 exchange. This volume is estimated to be 200-300ml. If an athlete doubles their RF, the amount of air Dead Space also doubles, resulting in larger and larger volumes of ineffective air exchange. This dead space can be minimized by reducing RF and maximizing TV at any given ventilation volume.
The reliance on the diaphragm to sustain large tidal volumes and the intercostal musculature to coordinate fast and forceful exhalation can require up to 20% of the total cardiac output. Therefore efficiency of the respiratory system is a key to success for both high intensity athletes and endurance athletes alike. Efficiency is improved by maximizing TV up to 85% of FEV1 to reduce dead space activation and improving rhythmicity of the respiratory pattern.
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[@twandej8987]

So much interesting again ! Is cross country skiing (skating technique) similar to rowing in that case ? The frequency/rate move of the poles leading the all body is around 35 to 45 on flat ground (high speed) and goes up to 50-70 in uphills (slower part of the race run close to V02max)...it seems almost impossible to keep maximum respiratory volume at that rate isn't-it ? And yet, breathing one of two stroke (so a rate around 25-35) by my experience wouldn't be enough at intensity close to V02max considering the amount of 02 (or C02 exhale) necessary in that sport. What is your opinion and advice on that please ?

[@ckavostok]

Good afternoon experts. Interested in the testing protocol for swimmers of different specializations together with Bo2Master. What data we can or should collect. To see the parameters of training and limitation. And how to interpret this data.

[@upsidestrengthen]

This is a great question! We will tackle it soon in an upcoming video :)