This type of fitness equipment facilitates lower body strength training through a seated, upward pushing motion against a weighted platform. The design provides a guided range of motion, typically along a near-vertical plane, unlike angled or horizontal leg press variations. This upright orientation emphasizes specific muscle groups within the legs and glutes.
The guided, vertical movement promotes controlled exercise execution, potentially reducing strain on joints and connective tissues compared to free-weight squats or lunges. This controlled environment can make it a suitable choice for individuals recovering from injury or those new to strength training. Its history can be traced back to adaptations of early resistance training devices, evolving to become a staple in modern fitness facilities.