Abstract: A device for treating or preventing lower back pain that is simpler and less costly than previous similar devices. Among the features of the device are a leg rest height adjustment arrangement that is simple to operate and provides substantially continuous height adjustment, a leg rest folding mechanism that pivotally couples the leg rest to a leg rest support shaft to place the leg rest in operative and storage positions, and a flexible cover that does not substantially change its length during height adjustment.

Abstract: A device for treating or preventing lower back pain that is simpler and less costly than previous similar devices. Among the features of the device are a leg rest height adjustment arrangement that is simple to operate and provides substantially continuous height adjustment, a leg rest folding mechanism that pivotally couples the leg rest to a leg rest support shaft to place the leg rest in operative and storage positions, and a flexible cover that does not substantially change its length during height adjustment.

Abstract: A device for treating neck tension or neck injury is provided. The device includes a base connected to a head support which is capable of continuous bi-directional movement relative to at least one axis of said base. The device is configured such that the continuous bi-directional movement is capable of repetitively flexuring and/or extending neck vertebrae of a user of the device.

Abstract: A device for preventing or relieving pain in the lower back of a human subject includes a body-engaging element configured for engaging a region of the subject's body inferior to the lumbar vertebrae while the subject lies in a supine position. A drive mechanism is configured to move the body-engaging element through a repetitive cyclic motion which includes an operative motion along a first path including a primarily vertical lifting motion followed by a primarily horizontal tensioning motion, and a return motion along a second path, the second path lying generally below the first path. The body-engaging element preferably includes at least one surface configured for engaging a rear surface of both of the subject's legs from the knees downwards.