Abstract: An exerciser includes a leg positioning member which is slidably mounted to a slide rod and a damping device is located between the leg positioning member and the slide rod. Two handles are connected to the top of the slide rod. The user sits in a chair and the two thighs clamps the leg positioning member, the hands hold the handles to lift the slide rod to resist the damping device. The handles can also be adjusted to be operated by pivoting them. The handles can be installed to the lower end of the slide rod and the exerciser is arranged in up-side-down, the user can pushes the handles downward.