A studio staff from Japan's robot venture company Cyberdyne teaches a user about the center point of the balance of the Lower Limb Model HAL (Hybrid Assistive Limb) for welfare use during a HAL training at the Cyberdyne studio in Tsukuba, north of Tokyo July 22, 2014. Japan, with the world's largest robot population, is now awakening to a crisis as its lead in robotics ? one of its last areas of technological prominence - comes under threat from better-coordinated efforts in the United States and Germany, as well as Asian rivals South Korea and China. Picture taken July 22, 2014. REUTERS/Yuya Shino (JAPAN - Tags: BUSINESS HEALTH POLITICS)