Bodytone FH52 leg extension, selectorised quadriceps machine

The Bodytone FH52 is a selectorised machine for seated knee extension, targeting the quadriceps. It provides a dedicated station for training the front of the thighs in professional gyms. Its place in the facility depends on the training programme, the users and the available space.

Technical specification

Placement in the leg zone and upkeep

The FH52 can complement a seated leg curl, which targets the hamstrings. Whether to install both stations depends on the training programme and the available space. The 135 x 132 cm base is close to square and the shin lever sweeps forward, so keep the front of the machine clear and do not point it into a walkway.

Height is 162 cm, which keeps sightlines open across the floor. Net weight is 253 kg and should be checked against permissible floor loading for any installation on an upper level, together with a survey of the delivery route.

Preventive maintenance covers the cable and pulleys, the lever pivot at the knee axis, the shin pad and back pad adjustments, and the selector pin. The range limiter and the seat back position are the two settings members change most often, so verify that they lock positively at each notch during servicing.

Stack configuration

The 107 kg standard stack extends to 134 kg. The quadriceps are a large muscle group and trained users progress quickly on this movement, so the extension is one of the more defensible options in the range for a club with a competitive or field sport membership. Hotels, corporate sites and clinical settings are well served by the standard stack, where the value lies in the low starting load and the 7 kg steps.

Frequently asked questions

Which muscles does the FH52 target?

The FH52 targets the quadriceps at the front of the thighs through seated knee extension against a selected resistance. The seat and back pad support the user during the exercise.

Should the FH52 be paired with a leg curl?

The two stations have complementary functions: the FH52 trains knee extension for the quadriceps, while a seated or prone leg curl trains knee flexion for the hamstrings. The choice of equipment and its placement depends on the training programme and the available space.

How should the FH52 be set up before use?

Set the seat position, range of motion and resistance according to the manufacturer’s instructions and the user. A trainer can explain the adjustments and supervise the initial setup.