Sun 73 Tai Chi is the basis for the popular Tai Chi for Arthritis and Tai Chi for Fall Prevention programs. Sun-style Tai Chi is not as physically strenuous as other styles. There are some fast movements and squatting, but even these can be adapted and minimized. Sun-style Tai Chi is gentle yet powerful.
“Sun style t’ai chi ch’uan was developed by Sun Lutang, who is considered expert in two other internal martial arts styles: xingyiquan and baguazhang before he came to study t’ai chi ch’uan. Today, Sun-style ranks fourth in popularity and fifth in terms of seniority among the five family styles of t’ai chi ch’uan. He was also considered an accomplished Neo-Confucian and Taoist scholar, especially in the Yi Jing and the T’ai chi classics. Sun learned Wu (Hao)-style t’ai chi ch’uan from Hao Weizhen, who was Li Yiyu’s (李亦畬) chief disciple.[1] Sun style t’ai chi ch’uan is considered to be part of the umbrella of Sun style internal martial arts developed by Sun Lu T’ang.”
Wikipedia contributors, “Sun-style t’ai chi ch’uan,” Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/w/index.php?title=Sun-style_t%27ai_chi_ch%27uan&oldid=1102030624 (accessed October 13, 2022).