Abstract: A system for biomechanically protecting a person carrying a structure on their back includes a body portion carried about the person's back and shoulders. A shoulder area pad is connected to the body portion and covers a portion of the person's shoulder area. A scapula area pad spaces the structure from the person's spine of the scapula area and covers a portion of the person's back adjacent the spine of the scapula. A para-spinal pad spaces the structure from the person's spinous processes and extends substantially the length of the person's spine, covering a portion of the person's para-spinal musculature. Protection from the structure is also provided by a lateral pad that covers a lateral portion of the person's back, a kidney pad that covers a portion of the person's back to protect the kidneys, and a sacrum pad that covers a portion of the person's sacrum area.

Abstract: A system for biomechanically protecting a person carrying a structure on their back includes a body portion carried about the person's back and shoulders. A shoulder area pad is connected to the body portion and covers a portion of the person's shoulder area. A scapula area pad spaces the structure from the person's spine of the scapula area and covers a portion of the person's back adjacent the spine of the scapula. A para-spinal pad spaces the structure from the person's spinous processes and extends substantially the length of the person's spine, covering a portion of the person's para-spinal musculature. Protection from the structure is also provided by a lateral pad that covers a lateral portion of the person's back, a kidney pad that covers a portion of the person's back to protect the kidneys, and a sacrum pad that covers a portion of the person's sacrum area.

Abstract: A system for biomechanically protecting a person carrying a structure on their back includes a body portion carried about the person's back and shoulders. A shoulder area pad is connected to the body portion and covers a portion of the person's shoulder area. A scapula area pad spaces the structure from the person's spine of the scapula area and covers a portion of the person's back adjacent the spine of the scapula. A para-spinal pad spaces the structure from the person's spinous processes and extends substantially the length of the person's spine, covering a portion of the person's para-spinal musculature. Protection from the structure is also provided by a lateral pad that covers a lateral portion of the person's back, a kidney pad that covers a portion of the person's back to protect the kidneys, and a sacrum pad that covers a portion of the person's sacrum area.

Abstract: An anatomically manipulable toy in the form of a rotatable implement comprising a shaft, a massive body portion rigidly attached to the shaft, and a contact element at one end of the shaft. In operation, the rotating implement is generally supported by placing the contact element on a portion of the user's anatomy, typically a hand, with the shaft horizontal, rotation having been initiated by manually imparting a torque to the implement, typically at the shaft. The contact element rolls on the user's anatomy, thereby producing a linear translation therealong. The weight of the implement acting at a horizontal separation from the point of contact causes a precession of the spinning implement about the vertical axis through the point of contact. The rate of precession depends on the rate of angular rotation and the distance of horizontal separation.