Qian Xuesen
Zhang Zhenhuan was one of the four "political pillars" of the qigong sector in China during the 1980s and 1990s. Others included Qian Xuesen, Wu Shaozu, Lv Bingkui—China's most influential figures in science, sports and Chinese medicine respectively. The fate of qigong in China was intimately linked to that of these four individuals.