Effects of 4 weeks living high training low (LHTL) on aerobic exercise capacity, concentration in oxygenated skeletal muscle, cardiac function and time trial in elite middle and long distance runners.

Park et al. (2011) conducted an RCT in Elite middle and long distance runners (n=20). Living High Training Low (LHTL) vs. Living Low Training Low (LLTL) was evaluated on Aerobic exercise capacity, cardiac function, and time trial performance. Four weeks of Living High Training Low (LHTL) improved 3,000 m and 5,000 m time trial performance, running economy, and cardiac function compared to Living Low Training Low in elite runners.