The different slow motion solo form training sequences of tai chi are the best known manifestations of tai chi performed for the general public. The forms are usually performed slowly by beginners and are designed to promote concentration, condition the body and familiarize students with the inventory of motion techniques for more advanced styles of martial arts training. There are also solo weapons forms, as well as much shorter and repetitive sequences to train power generation leverages. The laojia yi lu (Chinese: c=老架一路|p=lǎojià yī lù) postures listed below are the "old frame, first routine" of the Chen style with focus on silk reeling.