The Leg Extension is an outdoor machine designed for isolated quadriceps training through knee extension from a seated position. The seat and backrest angle ensures optimal pelvic and spinal alignment, improving contraction efficiency and reducing lower back strain. A single sliding weight moves along a linear bearing-guided track, allowing smooth, controlled motion. The user extends padded leg rollers forward to engage the weight module. The rollers are ergonomically shaped and padded to match leg anatomy, while the seating arrangement ensures stable body positioning. The weight can be locked using a stainless steel safety stop, improving safety when entering or exiting the machine. The structure is made from hot-dip galvanized and powder-coated high-strength steel. The seat and backrest are constructed from water- and UV-resistant materials for long-term outdoor use. The Leg Extension is a vital outdoor fitness machine for targeted quadriceps
development, offering safe and effective training for all user levels.