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1 Conduct strength and mobility training every other day. 2  Conduct endurance and mobility training (running) every other day. This also applies to foot marches more than 5 km in the toughening phase.  Avoid conducting foot marches, and endurance and mobility training on the same or consecutive days.
Altitude training is the practice by some endurance athletes of training for several weeks at high altitude, preferably over 2,400 metres (8,000 ft) above sea level, though more commonly at intermediate altitudes due to the shortage of suitable high-altitude locations.