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The Resolute™ Strength Back Extension focuses on the muscles of the lower back that help to extend the spine and aid in rotational movements. The Back Extension movement complements the muscles trained during abdominal exercises. Biomechanically Sound The contoured back pad provides proper support to ensure back muscle activation throughout the movement. The fixed footplate provides stability during the full range of motion. Designed to Go the Distance Sealed bearings in all pivot points, oversized steel tubing and chrome-plated adjustment plates make for quiet, durable operation for years to come. Advanced Training with Sony® Advagym Strength training has gone digital. Add the Sony Advagym training and tracking system, along with the app, to give your exercisers a whole new way to train. Through the Advagym app, personal trainers can prescribe workouts and monitor their clients’ progress. Specification Dimensions (L x W x H) 122 x 124 x 148 cm / 48 x 49 x 58 inches Equipment Weight 532 lb / 242 kg Weight Stack (kg/lb) 200 lb / 91 kg Incremental Add-on Weight 5 lb (2.3 kg) Adjustments Ratcheting seat adjustments require only a lift to release the lever. Handles include slip-resistant rubber sleeves with machined alloy end-caps. Adjustment points are highlighted with a contrasting colour for ease of use. Pulleys and Cables Glass-fibre-reinforced nylon pulleys provide strength and durability, while precision ball bearings allow effortless rotation. Cables use a 7x19 stranded wire configuration for added strength and flexibility and are coated with black pressure-extruded nylon for long lasting protection and a smooth feel. 4.8 mm wire is coated to 6.4 mm with a breaking strength of 1,905 kg and 3.2 mm wire is coated to 4.8 mm with a breaking strength of 907 kg. General Features Unique design allows user to begin by making only one adjustment to the movement arm start position. Contoured pad supports the back for proper spinal biomechanics during exercise.