Hehe, this is the music in a good fitness video that I often follow. That sounds interesting. /v_show/id_XNTE4NzE5MTQw.html

In addition, there is an abdominal muscle exercise video in this series, which is also quite good/v _ show/v _ show/id _ xntm0nzmzotey.html.

There is also a first-class push-up video. If you think this group is a bit difficult to do, you can have a look.

Fitness requires perseverance and encouragement.