KEISER
Keiser A400 Biaxial Upper Back
Keiser A400 Biaxial Upper Back
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Product Information Product Code: 002035
Are you eager to experience it firsthand? Reach out to us at info@fightstarco.com or give us a call at 0333 090 8786 to schedule your personal viewing. This is your opportunity to explore the entire Keiser range that we offer, all available for in-person experiences. Don’t miss out on the chance to see and feel what makes Keiser products exceptional! (T&C Apply)
Please Note, You will need to buy an air compressor and an upgraded screen along with the machine. Each air compressor works for up to 8 machines, while the new A400 screen can power up to 16 machines. The new screen requires the compressor to power the screen, giving the user the best experience to the user.
MODEL 2035
A400 Biaxial Upper Back
BETTER DATA. MORE VERSATILITY. MORE EFFECTIVE. SAFTER. A BETTER UPPER BACK MACHINE FOR EVERY BODY.
The finest in American engineering and manufacturing.
Made in the U.S.A. with domestic and globally sourced materials.
A400 TECHNOLLAGY
UNLOCK TRAINING AND REHAB POTENTIAL WITH PRECISE, REP-BY-REP DATA.
The 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.
Power
See mean and peak power for each rep.
Velocity
See mean and peak velocity for each rep.
Range of Motion
See data for both concentric and eccentric phases for each rep.
Unilateral Comparison
See velocity and power data for the left and right side by side on unilateral machines.
Every workout can be a test.
Get testing data from every workout. Make program changes in real-time to optimise workout time and continue to progress.
Maximise performance with real-time, visual feedback.
Research indicates that real-time visual feedback can increase athlete intent. A400 technology provides the feedback that inspires improved performance.
Quantify progress automatically.
Capture vast amounts of performance data in the weight room or clinic. A400 makes it easy to capture force, velocity, power, and range of motion to track progress.
Performance drop-offs show when to stop.
Set custom performance drop-off levels (e.g. 80% of peak power). See when more reps would produce diminished returns. Know when to end a set to save time and reduce risk.
VERSATILITY
A MORE VERSATILE UPPER BACK MACHINE.
Use a variety of training and rehabilitation methods to improve strength, speed, and power — all with one machine.
DO MORE, MORE EFFECTIVELY.
The A400 Biaxial Upper Back, with Pure Resistance Technology™ (PRT), gives you more training and rehab options. That’s because it’s more effective than iron at a wide variety of speeds.
✅ Just as effective at slower tempos to improve strength.
Pure Resistance Technology™
LOW-INERTIA DESIGN MAKES IT MORE VERSATILE.
Pure Resistance Technology (PRT) drives the design of the A400 Biaxial Upper Back. We remove as much mass as possible to give you a pure, highly versatile resistance.
“Others build their machines like tanks.
We build ours like aircraft — strong, but very light.”
DENNIS KEISER - CEO, Keiser Corporation
LOW-INERTIA ARCHITECTURE
WE REMOVE ANY MASS WE DON’T NEED.
We engineer the linkages between you and the resistance to have as little mass as possible. With less mass, there’s less inertia and momentum.
PNEUMATIC RESISTANCE
A MORE VERSATILE ALTERNATIVE TO IRON
We use compressed air under digital control instead of iron resistance. It has almost no mass, inertia, or momentum. No matter how fast you move, you can’t throw it, and you don’t have to slow it down.
VERSATILITY
LOW-INERTIA MEANS MORE WAYS TO TRAIN AND REHAB, MORE EFFECTIVELY.
With almost no inertia, your resistance is more effective and safer at a wide variety of speeds. This gives you more ways to train and rehab.
DYMANIC VARIABLE RESISTANCE (DVR)
RESISTANCE THAT MATCHES YOUR STRENGTH CURVE.
On an upper back machine, you’re stronger at some points than at others. We optimise resistance throughout your range of motion. This makes your muscles work at their maximum potential across that range.
A descending curve is designed for pulling motions, such as an upper back machine. Resistance decreases as you push further.
IDEAL RESISTANCE
MUSCLE WORK AT THEIR MAXIMUM POTENTIAL.
We’ve programmed the ideal resistance curve for an upper back machine into the A400 Biaxial Upper Back.
1. More resistance where you’re strongest: On an upper back machine, you’re strongest at the beginning of the concentric phase. Keiser’s DVR optimises your starting resistance with higher resistance.
2. Less resistance where you’re weakest: As you continue through the concentric phase, you become mechanically weaker. Keiser DVR decreases resistance to match your body’s natural strength curve.
VERSATILITY OF DVR
A RESISTANCE CURVE THAT KEEPS ITS SHAPE AT ANY SPEED
Inertia and momentum distort iron’s resistance curve. The faster you go, the more it changes. Thanks to Pure Resistance Technology, Keiser’s DVR will match your body’s ability to produce force, no matter your speed or resistance setting.
The finest in American engineering and manufacturing.
Made in the U.S.A. with domestic and globally sourced materials.
UNILATERAL MOVEMENT
TRAIN, REHAB, AND ASSESS LEFT AND RIGHT SIDES INDEPENDENTLY
On the A400 Biaxial Upper Back, the left and right sides move independently and provide separate data for each side.
A400 TECHNOAGY
IDENTIFY UNILATERAL IMBALANCE.
Get data for each limb to identify problems that can lead to underperformance or injury. Data includes range of motion, velocity, and power.
PERVENTS COLLATERAL DAMAGE WITH ALMOST ZERO SHOCK LOADING.
Iron's inertia and momentum may cause repeated stress on joints and connective tissue. Keiser eliminates that, so your training is far less likely to cause injury.
OPTIMIZE RESISTANCE
CHOOSE THE PRECISE RESISTANCE FOR YOUR GOALS.
With one-pound or one-kilogram increments, ranging from 0 - 356 lbs / 0 - 161 kg, it’s easy to find the right resistance level.
THUMB-BUTTON RESISTANCE CONTROL
CHANGE RESISTANCE ON THE FLY DURING EXERCISE.
Change resistance at any point during a rep with push-button convenience and digital precision.
✅Get rehab patients into position before adding load. This makes it easier to determine what resistance level the patient can achieve in tiny increments.
Model 2035
A400 Biaxial Upper Back
ENGINEERED TO PERFORM. BUILT TO LAST.
Innovative engineering. Solidly reliable. And simply more versatile.
ROW YOUR WAY
Specifically designed to isolate the upper back, the A400 Biaxial Upper Back differs from anything else. It guides you through a range of motion that optimises the effect on all of the muscles of the upper back. Its unilateral movement promotes symmetry by preventing the strong side from helping the weaker side. Unlike conventional machines that use iron, the A400 Biaxial Upper Back’s low‑inertia design gives you a smooth resistance. And it’s perfect for people at any fitness level.
Proven Durability. Lowest Cost of Ownership over time.
Made in the U.S.A. with domestic and globally sourced materials.
