TRUE Low Back AB Crunch (FS22)

The TRUE FS22 Low Back Ab Crunch is a selectorised commercial abdominal machine that trains the rectus abdominis and obliques in a seated, supported position through a guided arc of motion. The machine's biomechanical design anchors the pelvis and lower back against a padded support surface, isolating the abdominal contraction and preventing the common substitution patterns — hip flexor recruitment and lumbar loading — that limit the effectiveness and safety of unsupported abdominal exercises.

The padded roller pads of the FS22 contact the thighs and anchor the lower body in place, directing the effort to the abdominal musculature throughout the full crunch arc. The weight stack and cable system provide smooth, consistent resistance through both the concentric and eccentric phases of the movement, a characteristic that free-weight equivalents cannot match and that contributes to greater time-under-tension stimulus per repetition.

The FS22 is a fixed-resistance machine in TRUE's commercial selectorised line, sharing the build philosophy that characterises the brand's commercial equipment: welded steel frame, commercial upholstery, sealed mechanical components, and a selectorised weight stack rated for years of daily multi-user operation without performance degradation.

Abdominal machines of this type are a standard feature of commercial gym floor plans, serving members who want a guided, low-risk abdominal training tool and providing personal trainers with a reliable machine for introducing abdominal conditioning to new gym members who lack the technique or body awareness for effective floor-based abdominal exercises.

The seat height and arm pad adjustments accommodate users across a broad anthropometric range, and the large, clear resistance selector with numbered weight increments enables users to track their progressive loading and record it accurately in training logs.