Our unique 3D arc of motion replicates the natural mechanics of the hip joint and the functioning of the glutes. The head of the femur can rotate freely within the hip socket through the combination of hip abduction with external rotation and extension. This allows for a significantly greater range of motion, enhancing the stimulation of the iliac or upper division of the Gluteus Maximus and the posterior division of the Gluteus Medius due to the external rotation component. These two divisions are highly sought after for their impact on glute aesthetics. Furthermore, this optimal movement minimizes compensation or engagement of unwanted muscle groups.
Conventional hip abduction machines (seated or standing) exhibit a 1D linear motion parallel to the floor, failing to replicate the optimal mechanics of the hip joint. This leads to early hip impingement, significantly limiting the range of motion as the head of the femur cannot move freely within the hip socket. This motion is unnatural for the hip joint and can be compared to the restricted movement of a behind-the-neck shoulder press on a Smith machine. The Gluteus Maximus is limited in its functions, unable to exert hip external rotation and hip extension, performing only horizontal hip abduction. Consequently, other muscles, such as the Piriformis or TFL, may compensate and become more engaged.