
ARX adaptive resistance
ARX is a precisely controlled, low-impact way to build strength and support bone health. It meets you at a comfortable starting point, then can scale to the kind of intense, measurable challenge professional athletes value.

Keiser pneumatic technology


- Built for professional athletes, even better suited for the average 50-year-old and clients requiring adaptive training techniques.
- Train at the speed life requires.
- Build strength, power and reaction speed without the jolt of conventional weights.
- Start gently and adjust resistance in precise increments.
- Practice moving with confidence, whether your goal is getting out of a chair, catching yourself on uneven ground, or keeping up with the life you love.
