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Athletes often struggle with breathlessness. This is not only common for an individual exercising for the first time but also for the experienced athlete During increased rate and depth of breathing (hyperpnea), the relative cost of breathing increases exponentially when moving from moderate exercise to heavy and maximal exercise levels. (1) While at moderate exercise, the cost of the respiratory system accounts for

Watch the SaO² (Oxygen Saturation) of your blood change with breath holding exercises to simulate High Altitude training. In the sports world it is now believed that it is best to live high and train low so that we may acclimatize to compete at altitude whilst gaining maximum benefit of both. This is of course not terribly practical unless we worked and lived on a high mountain next to the sea  and that we could move