SportsArt Leg Extension - P857
The leg extension is a resistance weight training exercise that targets the quadriceps muscle in the legs.

Features
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Adjustable seat back cushion keeps posture correct
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Adjustable leg cushion provides optimal comfort for various leg lengths
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Multiple starting positions for a full range of motion
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Marine grade double-stitched upholstery
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Heavy-duty European-styled cushions
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Spring-lock release knob
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Internally lubricated 1,500 lb. steel aircraft cables provide quiet, smooth operation
Specification
Unit Weight: |
405.90 lbs / 184.5 kg |
Dimensions (L x W x H): |
53.1 x 41 x 57 in / 135 x 104.2 x 144.7 cm |
Weight Stack: |
176 lbs / 80 kg
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Max User Weight: |
500 lbs / 227 kg
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Starting Weight: |
13.2 lbs / 6 kg
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Warranty
Type: |
Full Commercial - no usage limit |
Frame: |
7 Years |
Weights & Guide Rods: |
3 Years |
Cables, Belts, Bearings & Parts: |
2 Years |
Grips, Enclosures & Covers: |
1 Year |
Upholstery: |
6 Months |
Labor: |
1 Year |
Resources
Data Sheet
What Our Experts Think
The SportsArt Leg Extension - P857 is a top choice for isolating and strengthening the quadriceps. Here's why it's highly regarded:
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Targeted Quadriceps Training: Specifically designed to isolate and engage the quadriceps muscles, helping to build strength and muscle definition.
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Ergonomic Design: Features an adjustable seat and padded ankle supports to ensure proper alignment, comfort, and effective muscle engagement during each set.
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Smooth Resistance: The machine's resistance system provides smooth, controlled movement, allowing for efficient targeting of the quads while minimizing strain on the joints.
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Heavy-Duty Construction: Built with durable, commercial-grade materials for long-lasting performance in both home and gym settings.
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User-Friendly Adjustments: Simple and intuitive adjustments to seat position and weight make it easy to set up and use, accommodating users of different body types and fitness levels.
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Compact and Space-Efficient: Designed to fit in smaller spaces while still offering high-quality performance.
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Effective Results: Ideal for enhancing leg strength, toning the quads, and improving overall lower-body fitness.
Q&A
Q: What is the SportsArt Leg Extension P857?
A: The P857 is a commercial-grade leg extension machine designed to strengthen the quadriceps. It isolates the thigh muscles for a focused workout, improving strength and muscle tone in the legs.
Q: How does the P857 help with strength training?
A: The P857 targets the quadriceps by using adjustable resistance to perform leg extensions, helping to build muscle strength, enhance endurance, and improve overall leg performance.
Q: Is the P857 suitable for all fitness levels?
A: Yes, the P857 features adjustable settings to accommodate a wide range of users, from beginners to advanced athletes, allowing for a customizable workout intensity.
Q: Is the P857 comfortable for extended use?
A: Yes, the P857 is designed with padded seats and adjustable leg supports to ensure comfort and proper positioning during workouts, even during longer sessions.
Q: Is the P857 built for commercial use?
A: Yes, the P857 is designed to withstand frequent, high-traffic use in commercial fitness facilities, offering durability and long-lasting performance.
Maintenance Tips
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Daily Cleaning: Wipe down the frame, seat, backrest, and foot pads with a soft cloth and mild cleaner to remove sweat, dirt, and grime.
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Inspect Seat & Pads: Regularly check the seat and backrest pads for any signs of wear or damage. Ensure that the upholstery remains firm and free of tears.
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Lubricate Moving Parts: Apply lubricant to the pivot points, seat adjustment rails, and the mechanism for the leg extension movement to reduce friction and ensure smooth operation.
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Inspect Cables & Pulleys: Check the cables, pulleys, and any other components involved in the resistance system for wear, fraying, or damage. Ensure they are aligned and moving smoothly.
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Test Resistance System: Ensure that the weight stack or resistance mechanism is functioning smoothly and adjusts easily during use. Check the weight pin for secure placement.
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Check Foot Pads & Handles: Inspect the foot pads for wear or damage. Ensure the handles are secure and in good condition for safe usage during leg extensions.
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Tighten Fasteners: Periodically check and tighten any loose bolts, nuts, or fasteners to ensure stability during exercise.
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Quarterly Maintenance: Inspect the entire machine for any wear, loose parts, or misalignment. Check that the range of motion is smooth and that the machine functions as intended.
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Inspect Safety Features: Make sure all safety features, including weight pins and adjustment locks, are secure and functioning properly to ensure safe workouts.