Low friction rehabilitation board with an integral band retaining feature and methods of rehabilitation

A portable rehabilitation board system comprising:

• an interface material;
• a first rehabilitation board comprising:
• a width from a first side to a second side;
• a thickness;
• a top working surface of the first rehabilitation board having a static coefficient of friction with the interface material of no more than about 0.25 according to ASTM 1894;
• a band plug retainer in the first rehabilitation board and comprising a tapered aperture through the thickness of the first rehabilitation board from a larger bottom surface opening, on the bottom surface of the first rehabilitation board, to a smaller working surface opening, on the working surface of the first rehabilitation board,
• a resistance band assembly comprising:
• an elastomeric resistance band having a length from a fixed end to an extended end;
• a tapered band-plug having an enlarged plug dimension at a plug-end that tapers to a smaller dimension at a band-end of the tapered band-plug;
• wherein the fixed end of the resistance band is coupled to the tapered band-plug;
• and
• wherein the tapered band-plug is retained in the tapered aperture of the band plug retainer with the band end proximal the working surface and the resistance band extending from the tapered plug toward the working surface of the first rehabilitation board.