The strength evolution continues Product pluses: Specific product for working out the muscles of the middle and lower back. The exercise is performed from a sitting position, with the shoulders positioned on the roller pad, and involves a backward extension of the trunk. Resistance is provided by a weight stack which enables the workload to be adjusted to suit each type of user. Selection Line Lower Back is built to focus on the lower back muscles without the involvement of the hip extensors Designed using the biomechanical analysis used to develop the Biostrength™® Line Range Of Motion adjustment provides an easy setting for the starting position Back rest provides pelvic stabilization and isolation of the lower back muscles Foot rest gives support to users of different body sizes without encouraging the use of the hip flexors Recommended for: Specific training of the lower back muscles Prevention and treatment of joint problems in the vertebral column Improvement of posture Muscles: Quadratus lumborum Sacrospinal