爬台阶有助于提升和收紧臀肌、股四头肌，以及腿筋。
Steps work wonders for lifting and tightening the gluteal muscles, quadriceps, calves, and hamstrings.
人体中单块最大的肌肉是股大肌，也叫臀大肌。
The single biggest muscle in the human body is the gluteus maximus, or the buttocks.
因此，您所选择的工作应该利用你的最大的肌肉，这是您和您的臀大肌股四头肌…你和你的大腿对接。
Therefore, your choice of exercise should make use of your largest muscles, which are your gluteus maximus and your quadriceps... your butt and your thighs.
应用推荐