Spirit Fitness Leg Extension

Key Features

• Unilateral and Bilateral Motion Capability: Supports both single-leg (unilateral) and dual-leg (bilateral) training for balanced muscle engagement and improved coordination.
• Muscle Imbalance Correction: Independent arm movement helps identify and correct left-right strength disparities for symmetrical quadriceps development.
• Angled User Positioning: The ergonomically angled seat enhances body stabilization, maintaining proper posture and alignment during heavy leg extensions.
• Adjustable Back Pad: Multi-position backrest allows precise alignment of the user’s knees with the pivot point for biomechanically correct leg extension motion.
• Self-Adjusting Lower Tibia Pad: Automatically aligns with the user’s shin, reducing the need for manual adjustment and simplifying setup between users.
• Smooth Resistance System: Precision bearing pivots ensure consistent and friction-free motion throughout the full range of extension.
• Heavy-Duty Frame Construction: Made with 4 mm thick steel tubing for durability, strength, and long-term stability under heavy loads.
• High Load Capacity: Handles up to 180 kg (396 lb) total resistance for advanced leg training and progressive overload.
• Comfortable Seat Padding: High-density foam pads covered with durable sweat-resistant upholstery provide long-lasting comfort and support.
• Compact, Space-Efficient Design: Streamlined footprint ideal for commercial gym layouts or professional home training environments.

User Benefits

• Promotes balanced quadriceps development and corrects leg strength asymmetries.
• Provides natural movement and optimal posture for knee-safe exercise.
• Reduces setup time with automatic lower leg pad adjustment.
• Ensures comfort and stability even during heavy, high-rep training.
• Ideal for strength building, rehabilitation, and sports performance.

FAQ: Frequently Asked Questions

• Can this machine be used for single-leg and double-leg exercises?
  Yes. The SP-4510 supports both unilateral and bilateral training options.

• What muscles does it target?
  It primarily isolates and strengthens the quadriceps (front thigh muscles).

• Is the seat adjustable?
  Yes. The back pad adjusts to align your knees perfectly with the pivot axis.

• Does the tibia pad require adjustment for each user?
  No. The self-adjusting tibia pad automatically fits to the user’s leg position.

• Is it suitable for commercial use?
  Yes. Built with 4 mm heavy-duty steel, it’s designed for continuous commercial gym use.

• How much weight can it handle?
  The maximum training capacity is 180 kg (396 lb), with 200 kg (440 lb) storage pins on each side.

The Spirit Fitness Leg Extension offers precision, comfort, and versatility for developing powerful, well-balanced quadriceps. With its unilateral and bilateral functionality, ergonomic seat design, and automatic tibia pad adjustment, it provides an efficient, smooth, and safe lower-body workout experience. Ideal for athletes, fitness professionals, and rehabilitation facilities, this machine sets a new benchmark for leg isolation training. Order now from activefitnessstore.com and experience Spirit’s industry-leading innovation in strength equipment.