zuò / cè / shēn / juǎn / fù / shí / yào / zhù / yì / bú / yào / guò / dù / lā / shāng / wài / xié / jī做侧身卷腹时,要注意不要过度拉伤外斜肌。When doing side crunches, be careful not to strain the external oblique muscles.