Shoulder motion exercise device and method of use

A method for shoulder motion exercise, comprising:

• releasably attaching a retainer (100) to an arm of a human user (U);
• gripping an extender (300) having an axial length, a proximal end (310), an extender gripping portion (330), a distal end (320), and an extender slidable portion (340) having a proximal slider position (360) and a distal slider position (370) along the axial length, across a palm in a first-side hand of the human user (U), the first-side hand being on the same anatomical side as a first-side shoulder of the human user (U);
• placing a hand-grippable slider (400) across a portion of a second-side hand of the human user (U), the second-side hand being on the same anatomical side as a second-side shoulder of the human user (U) and opposite the anatomical side of the first-side hand and the first-side shoulder, wherein the hand-grippable slider (400) is coupled to a proximal end (210) of an elastic resistance connector (200), a distal end (220) of the elastic resistance connector (200) is coupled to the retainer (100), the elastic resistance connector (200) having an unstretched connector length of 6-22 inches;
• moving the first-side hand and second-side hand away from the torso while rotating the second-side shoulder away from a torso of a human user (U) from an initial second-side shoulder position, and the first-side shoulder across a portion of the torso from an initial first-side shoulder position, thereby rotating the torso toward the second-side shoulder, abducting the first-side shoulder of the user and adducting the second-side shoulder, and moving the slider (400) at least 12 inches from the proximal slider position (360) toward the distal slider position (370) along a portion of the axial length of the extender (300) thereby stretching the elastic resistance connector (200) and transmitting a force to the retainer (100) so that the movement of the slider (400) aids in the rotation of the first-side shoulder across a portion of the torso, wherein the connector length increases by at least 2 inches when subjected to an axial tensile load of 5 lbf;
• and
• moving the first-side hand and second-side hand back toward the torso while rotating the second-side shoulder and the first-side shoulder back to the initial positions thereby rotating the torso toward the first-side shoulder, adducting the first-side shoulder of the user and abducting the second-side shoulder, and returning the slider (400) toward the proximal slider position (360).