The Matrix Ultra (G7) Back Extension (G7-S52) is a premium selectorized strength machine designed to target the lower back (erector spinae) while also engaging the glutes and core. Engineered for comfort and performance, it features a biomechanically optimized movement path that promotes safe, effective spinal extension and full muscle contraction.
A contoured back pad and ergonomic seat provide superior support, while multi-position foot placement accommodates users of different sizes and ensures proper alignment. Intuitive thumb-switch controls and clearly marked adjustments make setup quick and user-friendly, making it ideal for high-traffic commercial environments.
Key Features
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Targeted Lower Back Training: Effectively strengthens the erector spinae, glutes, and supporting core muscles
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Contoured Back Pad: Enhances comfort and promotes proper spinal alignment
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Multi-Position Foot Platform: Accommodates a wide range of users and improves stability
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5 Adjustable Start Positions: Allows users to customize range of motion
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Thumb-Switch Adjustments: Easy, intuitive controls for quick setup
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Smooth Selectorized Resistance: Internally lubricated cables ensure quiet, consistent motion
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Integrated Rep Counter (optional): Tracks reps, time, and usage for better training feedback
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Heavy-Duty Construction: Built with a durable steel frame and protective weight stack shrouds
Specifications
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Product Line: Ultra Series (G7)
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Machine Type: Selectorized Back Extension
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Dimensions (L × W × H):
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Static: 50.1″ × 47.3″ × 53″ (127.5 × 120 × 135 cm)
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In Use: 57.2″ × 47.3″ × 53″ (145 × 120 × 135 cm)
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Machine Weight: 704 lbs (319 kg)
Benefits
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Strengthens the lower back and posterior chain for improved posture and stability
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Promotes safe spinal extension with guided, controlled movement
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Adjustable design accommodates users of all fitness levels
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Durable commercial construction ideal for high-use facilities
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