A400 Functional Trainer

You can't call it function if you can't move at speed. Just because you can pull a cable in a variety of directions doesn’t make it functional. It’s pulling at the speed we perform that makes it truly functional. We designed this machine to be faster than the fastest human being, so we could properly train any movement, at any speed, in any direction. To truly understand what this all means, you’ve got to try it. Once you do, you will understand true FUNCTION. With the A400 screen, Inspect each set — and the reps within it — to understand the dynamics behind an athlete's performance. See how an athlete's power and velocity drive performance and motion characteristics. See the data behind performance drop-offs.

Featured Products

A400 Line

Next-Gen technology. groundbreaking Performance Insights.

A400 technology offers visual feedback and performance insights in real time. And you can export A400 data for use in your analytics or records platform, whether it’s custom or off-the-shelf.

See mean and peak power for each rep.

• See mean and peak velocity for each rep.

• Range of Motion

• See data for both concentric and eccentric phases for each rep.

• See velocity and power data for left and right side by side on unilateral machines.

• Custom Performance Drop-off. Know when reps become less effective. Optimize training time and reduce risk of injury.

Identify imbalances between left and right limbs that can lead to underperformance and injury (on unilateral machines only). Train or rehab for symmetry.

• Unilateral range of motion: See a visual comparison for both left and right sides in both concentric and eccentric phases.

• Unilateral bar graph: See visual comparisons of power and velocity by rep for both left and right sides.

• Unilateral Resistance Level

A400 Squat

The A400 Squat builds on the legacy of one of Keiser’s first and most popular machines, delivering unmatched strength, speed, and power development with smooth, pneumatic resistance. Designed for users of all ages and abilities, it features self adjusting shoulder pads, a wide base, and an adjustable bottom position to help reduce knee strain. Athletes can train the critical “triple extension” (full hip, knee, and ankle extension) to maximize speed and power. With Keiser’s A400 line technology, this machine seamlessly tracks performance metrics in real time, integrating with Keiser Metrics App for data-driven training optimization.

Half Rack Long Base

The only trye "Power" rack. Keiser put the power in Power Rack. A rack is just that, a rack to hang things on, until you add Keiser’s patented system to it. Then it goes from ordinary to explosive. Use it as an ordinary rack for free weight lifting or blend the iron and the air. Instead of benching 100 kg (220 lbs) of iron, strip off 50 kg of iron and add 50 kg of air. Now, it is a whole other experience. Once you’ve mastered balancing that, strip off more iron and add more air for the next level of training. The possibilities never end.

A300 Runner

The Runner places you in a position that simulates the acceleration phase of a sprint. Professional athletes everywhere use the A300 Runner to train for acceleration, speed, and power endurance. This piece of equipment uses Keiser’s innovative low‑inertia design to improve the power and performance of any individual looking for a competitive edge.

M3i Studio Bike

More than 20 years ago, Keiser set out to create a bike that would exceed the demands of indoor cycling. Designed around you, an indoor bike that fits riders of all body shapes and sizes; a bike that achieves a quiet but true road bike experience inside your home; and the only stationery bike built in the United States to ensure the tightest quality control. And we accomplished it all with THE SIMPLEST OF ENGINEERING DESIGNS.

M7i Total Body Wheelchair Stepper

The development of the M7i began as a compact unit that would fit in hallways of retirement communities for residents in wheelchairs and scooters to roll up to and exercise. From there it grew into a full-blown rehab machine. Using Keiser’s magnetic resistance technology, the M7i provides a smooth, quiet, stair climbing motion from a comfortable recumbent position. The foot plate supports the angular position of the foot through the full pedaling stroke. It articulates to minimize the change in ankle flexion as you pedal providing a more comfortable exercise. It also features an upper body resistance system for a low impact full body workout. The optional Foot and Leg Stabilizers and Wrist Straps make the M7i ideal for stroke and other brain and spinal cord injury survivors, as well as cardiac rehab patients.

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