Get Jailhouse Strong: [ Ссылка ]
Developing isometric, or static, strength is essential for a functional training routine.
Get Jailhouse Strong: [ Ссылка ]
![](https://i.ytimg.com/vi/GI16xYz9RtY/mqdefault.jpg)
Get Jailhouse Strong: [ Ссылка ]
Developing isometric, or static, strength is essential for a functional training routine.
Get Jailhouse Strong: [ Ссылка ]