| 摘要 |
An exercise device that includes housing within which there is a chamber containing a rotor (D), a mouthpiece (B) through which a user can blow into the chamber to effect rotation of the rotor (D), and valve means (E) providing a resistance to the passage of air into the chamber, the mouthpiece (B) being detachable from the chamber and the valve means (E) being located at the junction between the mouthpiece (B) and the chamber. |
