This is an excellent ab exercise for strengthening your abs and core muscles. You can find a much more thorough and detailed text description of this exercise and how to do it at http://www.popularfitness.com under the link "Exercise" and "All-in-one Abdominal Exercise"
这是一种锻炼腹部肌肉的绝佳方法。你可以在网站中找到更详细的文本描述。
Thanks for watching video All-In-One Abdominal Exercise
谢谢收看本期“一站式腹部锻炼法”节目。