The Impulse Fitness IT9506 Seated Leg Curl is a commercial-grade, pin-selectorized strength machine specifically designed to isolate and build the hamstring muscles. Built with a 3mm thick steel frame and a 200 lbs (91kg) weight stack, it features adjustable pads and ergonomic seating to ensure safe, biomechanically precise knee flexion.
Key Features
- Ergonomic Alignment: Features a yellow-marked pivot point indicator so you can perfectly align your knees with the machine’s axis.Â
- Fully Adjustable: Includes a one-hand adjustable backrest, vertically adjustable roller pads, and an adjustable thigh hold-down pad to fit users of varying heights.Â
- Commercial Durability: Utilizes nylon-coated, self-lubricating aircraft cables and high-density poly-foam upholstery for heavy-traffic usage.
- Convenience: Built-in bottle and accessory holder within arm’s reach of the seat.Â
How to Use
- Adjust the Seat: Sit in the chair and adjust the backrest so that your knee joint aligns with the machine’s yellow pivot point.
- Set the Pads: Place the lower foam roller just behind your ankles/calves. Lower the thigh pad over the top of your thighs so it is snug and secure.Â
- Select Weight: Insert the selector pin into your desired weight stack level.
- Execute the Curl: Keep your back flat against the upholstery and toes pointed upward. Contract your hamstrings to pull the pad down and back toward your glutes.Â
- Controlled Release: Squeeze at the bottom of the movement and slowly return to the starting position with control.

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