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Bilateral movement for body symmetry training.
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Increased resistance range for more intense functional workouts.
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Smooth Keiser Dynamic Variable Resistance – fully adjustable to accommodate a wide range of users.
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Large digital displays with resistance and counted repetitions.
PROTECTING YOUR BACK FOR LIFE
Keiser’s A250 Lower Back differs from any of its competitors on the market. It focuses not only on building muscles, but also protecting them. Unlike conventional machines that use iron, the A250 Lower Back’s low‑inertia design gives you a smooth resistance. This can help protect joints and connective tissue from shock loading. The result is a safer workout. And it’s perfect for people at any fitness level — from older adults to elite athletes.
Optimize your resistance level. Set resistance at the precise level best for you and your goals.
Don’t wait for the next ten pounds. Continually challenge muscles with frequent, small increases in resistance.
Ideal when training for speed and power. Small increments are an important tool when training fast with lower resistance.
Perfect for rehab and reconditioning. One-pound increments and a starting resistance of zero help find the right resistance level to recover from injury or a deconditioned state.