Lower Back

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EVERYONE NEEDS A STRONG BACK

The A400 Lower Back machine is designed to strengthen and protect, offering a safer and more effective way to build lower back strength. Unlike traditional weight-stack machines, its low-inertia, pneumatic resistance minimizes joint stress and shock loading, reducing the risk of injury. This makes it an ideal choice for users of all fitness levels, from older adults to elite athletes. Equipped with Keiser’s advanced A400 technology, the machine tracks real-time performance metrics and seamlessly integrates with the Keiser Metrics App for data-driven training optimization. The A400 Lower Back delivers smooth, controlled resistance, ensuring a safer, more efficient workout experience.

  • Bilateral movement for body symmetry training
  • Increased resistance range for more intense functional workouts
  • Smooth Keiser Dynamic Variable Resistance, fully adjustable to accommodate a wide range of users
  • Cost-effective way to provide strength training options
  • Virtually zero shock to muscles, connective tissues, and joints
  • Durable construction engineered for years of use
  • Resistance range : 0 – 155 kg
Display Version

A400

  • Intent: Research indicates real-time visual feedback can increase athlete intent. A400 technology provides the feedback that inspires improved performance.
  • Velocity: In addition to Power, work now with Velocity based methodology
  • Range of Motion: Identify imbalances between left and right limbs that can lead to underperformance and injury (on unilateral machines only). Train or rehab for symmetry.
  • Load Velocity Profile
  • Data: Quantify progress in load, velocity, and power automatically. Then, bring it into your analytics or records system so you can track everything.
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