This unit provides smooth, pneumatic resistance for bilateral or unilateral training, ensuring body symmetry and performance tracking via high-intensity, adjustable digital displays.
Product Dimensions: 40 x39 x 45 in (101.6 x99.1 x 114.3 cm)
Product Weight: 150lbs (68 kg)
Resistance: 0-236lbs (0-107kg)
Unilateral (independent left and right sides)
Equipment Need: Connect to Compressor are Requested
Compatible with A300 Power Display and A400 Technology
MAXIMIZE QUAD RESULTS
The Keiser Leg Extension is the premier machine to demonstrate the clear superiority of Dynamic Variable Resistance over traditional iron weights. The quadriceps, being one of the most powerful muscle groups in the human body, are designed to produce extremely high forces at fast speeds. However, because the knee joint is particularly vulnerable to injury at high degrees of flexion, our technology adapts the load accordingly.
By lowering the resistance at the beginning of the Range of Motion (ROM), then increasing it significantly through the middle phase before tapering off at full extension, we optimize the loading profile to match your body’s mechanics. This intelligent resistance management, combined with the ability to work each leg independently at speed, maximizes your training results while actively protecting your joints and connective tissues. Furthermore, the system allows for heavy negatives, a key feature across all Keiser Dynamic Variable Resistance machines.
KEISER DYNAMIC VARIABLE RESISTANCE
Keiser’s Dynamic Variable Resistance is designed to provide a smooth onsistent Variable Resistance force curve at any training speed. Each achine has its own unique Variable Resistance curve designed and tuned erfectly for the muscles being used in that particular exercise. For users, his means that working out any speed, you’ll always be training at aximum efficiency.
