The Decline Board allows far greater specificity in rehabilitating tendon injuries around the knee and ankle. When performing a standard squat, calf tension and excessive trunk flexion can often act to unload the knee extensors (quadraceps). Over time, specific weakness of the quadraceps muscle-tendon unit is considered to increase susceptibility of injury to the knee extendors to be loaded maximally. A recent study of rehabilitation programs for elite volleyballer players with jumper’s knee found that using the Decline Board produced superior strength gains and improvements in tendon pain compared to a standard squat program. The Decline Board allows targeted strengthening of the knee extensors ot achievable in a standard squat, and is a valuable tool in rehabiitation and strengthening of the knee extensor mechanism.