Answer:
an elite athlete acclimate to higher altitude they acquire more red blood cells which allows their blood to carry more oxygen when they compete at lower altitudes they get a natural boost to the muscles when additional oxygen is available
Theodore Roosevelt was one of the influential leaders of the progressive.
Not sure it did limit freedoms of Loyalists post Revolutionary War, however during the war I imagine ones that lived in Revolutionary controlled regions were restricted in movment and expression. Most Native Americans however, sided with the British because of the proclamation of 1763. This was an outcome of the French and Indian War and prevented colonists from expanding west of the Appalachians to prevent more conflict with natives. Colonists did not like this, they wanted to expand as far west as they wanted.
