The A300 Keiser squat machine was one of the first machines Keis­er cre­at­ed. It remains extreme­ly pop­u­lar because of its abil­i­ty to devel­op strength, speed, and pow­er using smooth resis­tance. Peo­ple of every age and abil­i­ty can use the A300 squat exercise machine to devel­op their explo­sive pow­er. It fea­tures self-adjusting shoul­der pads, a wide base and an adjustable bot­tom posi­tion to help pre­vent knee injuries. It also lets ath­letes train the essen­tial “triple exten­sion” (a full lock of their hips, knees, and ankles) for speed and power.