FlyingDutchman Circa. 2024 on Instagram: "Going to altitude is a cool experience, but comes with a cost in my opinion. For developmental athletes and high school runners, altitude training isn’t a shortcut; it’s a risk. At this stage, improvement comes from: • Building aerobic base • Improving running economy • Raising lactate threshold • Repeating quality training with consistency Altitude interferes with all of it by lowering absolute intensity and increasing recovery cost. For developing athl