During normal activities, the average person displaces the shoulders, then the back, which in turn shifts the position of the hip joints.  This alteration in alignment makes these areas susceptible to forces that would pull them into unstable positions.  For example, if the shoulder position is internally rotated by contraction of the biceps, an unstable articulation is created whereby contraction of the trapezius, levator scapula, and rhomboids along with compression of the spine (rounding of the thoracic spine) must occur in order to provide sufficient resistance for the shoulder girdle to perform work.  This pattern of movement creates shearing planes in the shoulder joint and results in increased stress on the back, shoulder joint and surrounding soft tissues because of the muscular imbalance.

The underlying premise of the e3 fitness grip is that the human body is an interactive physical structure of multiple interlinking components, rather than a collection of isolated body parts attached to a central longitudinal frame.  The e3 grips help modify mechanical behavior throughout the body by placing the shoulder and hip girdles in more inherently stable positions and the axial skeleton in a balanced vertical alignment.   The result of these changes is more efficient muscle use which improves balance, mobility, and strength.