athletic young man of west asian ethnicity warming up abdomen muscles doing elevated sit-ups on racetrack near soccer field - 仰臥 個照片及圖片檔運動員, 仰臥起坐, 室外
woman spending time cardio warmup strength training exercise sit-ups on bench - 仰臥 個照片及圖片檔仰臥起坐, 微笑, 年輕成年人
shot of a handsome mature man doing sit-ups while working out in the gym alone - 仰臥 個照片及圖片檔仰臥起坐, 啞鈴, 男人