formation (1) bicyclette (1) oxygène (1) exposition (1) altitude (1) Case (1) Training (1) Work (1) Value (1) Sprinting (1) Pulse (1) Popularity (1) Performance (1) Oxygen (1) Heart beat (1) Grammar, Comparative and general--Case (1) Exercise (1) Days (1) Cycling (1) Case (1) Average (1) November (1) Reference (1) Performance (1) Training (1)