Spirit Fitness SP-3514 Prone Leg Curl

Product Overview

The Spirit Fitness SP-3514 Prone Leg Curl is a commercial-grade strength machine designed to isolate and strengthen the hamstrings through a natural prone (lying) movement pattern. By allowing full engagement across both the hip and knee joints, it delivers highly effective posterior chain training while maintaining proper body alignment. Engineered with stabilizing pad angles, smooth resistance, and user-friendly adjustments, the SP-3514 ensures safe, controlled, and consistent performance in high-use fitness environments.

PIN: SP-3514

Key Features

• Prone Positioning for Full Muscle Activation
  Enables complete hamstring engagement across both hip and knee joints for optimal strength development.
• Hip-Stabilizing Pad Angles
  Designed to prevent the hips from lifting during exercise, ensuring proper form and muscle isolation.
• Adjustable Range of Motion
  Allows users to customize movement limits based on flexibility, training goals, or rehabilitation needs.
• Adjustable Lower Leg Pad
  Accommodates different user sizes for correct alignment and comfort during exercise.
• Smooth Cable-Driven Resistance
  Provides fluid, controlled motion throughout the full range of movement.
• Integrated Rep Counter & Storage
  Built-in tracking system and top-cap storage enhance convenience and workout efficiency.
• Commercial-Grade Construction
  Heavy-duty steel frame with premium upholstery ensures long-lasting durability.

Specifications

Performance

• Exercise Type: Prone leg curl (hamstring isolation)
• Resistance System: Selectorized weight stack
• Weight Stack: 110 kg / 240 lb
• Increment: 7.5 lb increments
• Movement: Cable-driven system for smooth, controlled resistance
• Target Muscles: Hamstrings, with secondary engagement of glutes and calves 

Design & Build

• Frame: Heavy-duty commercial-grade steel
• Finish: Durable powder-coated surface
• Pads: Angled hip pads and adjustable leg pad for proper alignment
• Cushioning: High-density foam with premium upholstery
• Mechanics: Adjustable range-of-motion system
• Convenience Features: Rep counter, storage tray, enclosed weight stack 

Dimensions & Capacity

• Dimensions (L × W × H): 1561 × 1121 × 1592 mm (61" × 44" × 63")
• Machine Weight: 248 kg / 548 lb
• Weight Stack: 110 kg / 240 lb
• Maximum User Weight: Approx. 163 – 180 kg (360 lb range)
• User Height Range: Approx. 4’11” – 6’8”