fig1 shows a mat 2 of one embodiment of the present invention . the mat 2 may be the same size and shape of as a common yoga mat — about 72 to 80 inches long , by about 24 inches wide , and about 0 . 25 inches thick . the mat length must be long enough to allow a patient to complete one gait cycle , i . e . a double step . one of ordinary skill the art will appreciate that longer mats allow more than one gait cycle also contemplated by this disclosure . the mat 2 includes loop strips 6 positioned along the length of the mat , about every 6 inches , that targets and provides visual reference so steps can be analyzed . the loop strips 6 also selectively receive targets placed at preferred locations . one of ordinary skill the art will appreciate that the targets may be selectively interconnected to the mat by other methods , such as by magnets , snaps , clasps , or other selectively interconnecting mechanisms . although the loop strips are shown orthogonal to the mat &# 39 ; s lateral edges 10 and parallel to the mat &# 39 ; s first edge 14 and second edge 18 , they could be angled relative to the lateral edges 10 . further , a loop strip grid may be provided . the mat also includes a measurement tool 20 printed or fixed along at least one of the first edge 14 , the second edge 18 , or one of the lateral edges 10 . the measurement tool allows stance position measurement and helps locate the targets . the mat may include measurement indicia on at least two orthogonal mat sides to allow step length and width distance assessment . fig2 shows a mat 22 that may be shorter than the floor showing fig1 . here , the mat 22 is designed to be attached to a door or wall via selective interconnection mechanisms , grommets , straps , or any other device that allows the mat 22 to hang vertically . in this fashion the mat 22 can be positioned at various heights . further , the mat 22 is hung so the measurement device is vertical or horizontal . lines 26 , which can be loop strips , with high contrast with different spatial frequencies will assist with optokinetic stimulation . fig3 - 9 show examples of how targets 44 can be placed in various configurations for stepping and balance training . here , the targets 44 are footprint shaped . one of ordinary skill in the art will appreciate that the targets 44 may be of any shape , such as circles as shown in fig1 . the targets 44 may be of the same texture or each adjacent target 44 may be of different textures . any combination of textures is contemplated . for example , two adjacent targets may have the same texture wherein the third target has a different texture and so forth . it follows that the targets may have different heights , be comprised a different foams and materials , etc . as described above , targets 44 that produce auditory cues may also be used to provide gait mechanics or heel to toe feedback . fig9 shows a plurality of targets 44 of varied thicknesses positioned on a mat 2 of one embodiment of the present invention . the targets 44 may be made of a combination of resilient material , such as foam , and stiff materials . the therapist may provide a treatment protocol that requires the patient to step on targets of various thicknesses so they can learn to ascertain surface height changes from a target to another . fig1 - 12 show a footprint shaped target 44 of one embodiment of the present invention . here , a foam base 48 that is about 0 . 75 inches thick is employed that has at least two locations 52 — inserts , recesses , pouches , etc .— for the receipt of clickers or other sound - producing mechanisms . the heel insert may be in the shape of a teardrop and the forefoot insert may be an oval shape so the clicker can be turned facing towards the top or bottom of the footprint to accommodate the patient &# 39 ; s foot for easier clicker activation . the target may be constructed of the foam base layer 48 and a foam upper layer 56 , which may be textured . the sound - producing elements 60 are provided in the recesses 52 in the base layer . the base member includes a selectively interconnecting member , such as hook / loop fasteners that selectively receive and retain corresponding interconnection mechanisms on the upper layer 56 . fig1 - 13d show a target 44 with various textures it can incorporate . the target 44 may be substantially flat wherein no texture is employed . alternatively , and often beneficial to rehabilitation , the target 44 may be covered , or covered in selected areas , with a textured surface . furthermore , a target may include various textures to define different areas of the target , the boundaries of the target , etc . for example , detailed views 13 a - c show some textures contemplated by embodiments the present invention . those of ordinary skill the art will appreciate various other textures may be employed without departing from the scope of the invention . the location of the ends of the leader lines associated with fig1 a - 13c are not meant to indicate the exact location of the textured area . fig1 a is composed of pyramid shapes formed in lightweight eva ( ethylene vinyl acetate ) foam . in one embodiment , the pyramid peaks are spaced about 2 . 5 mm apart and are about 3 mm high . fig1 b shows a texture composed of crisscrossed , raised portions , which may be formed of small , soft fingers . fig1 c shows a turf - like texture made of polyethylene fibers ( denier 10 , 800 / 4 , 500 , pile height : tufted at 1 . 75 - inch stabilized duel layer primary backing , secondary backing : 20 oz . hd urethane coating ). the textures contemplated herein may be made of recycled rubber materials . and , as mentioned above , the textured upper target portions may include a selectively interconnection mechanism , such as hook and loop fasteners ( i . e ., velcro ®) that allow the upper portion to be selectively interconnected to base layers comprising a foam or other material . the foam used by some embodiments of the present invention possess an indentation force deflection ( ifd ) of about 95 , which equates to a density of 1 . 8 pounds per cubic foot ( pcf ). the base portion may be molded or include a corresponding selective interconnection system , i . e . the hook of a hook and loop fastener system . by contrast , the upper layer may have an ifd of about 61 with the density of 2 . 5 pcf . in practice , the top , textured layer of the target may be positioned on the mat alone , or in combination with the foam base layer . fig1 d shows a side elevation view of the top , textured target layer of one embodiment of the present invention . here , the top layer is about 0 . 375 - inch - thick , wherein the apex of the textured surface is supported by a sub - base interconnected to the base layer of the target or directly to the mat . the textured surface and the “ control ” mat surface may emulate textures found in an accompanying children &# 39 ; s book . the book will include , for example , illustrations of how animals and humans balance and move and corresponding exercises . animal sounds may be the auditory cue so the child or mentally - impaired patient may match the sound with the texture . a child must feel the texture in the book then note the same on the floor or wall mat . fig1 is yet another top plan view of the mat 2 of one embodiment of the present invention employed circle - shaped targets 44 instead of footprint shaped targets . one purpose of this figure is to illustrate that targets 44 may be of any shape without departing from the scope of the invention . here , the targets 44 are spaced in such a way to help train individuals to master or improve reaching their hand to target to improve balance during reaching tasks . while various embodiments of the present invention have been described in detail , it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art . it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention , as set forth in the following claims . further , it is to be understood that the invention ( s ) described herein is not limited in its application to the details of construction and the arrangement of components set forth in the preceding description or illustrated in the drawings . the invention is capable of other embodiments and of being practiced or of being carried out in various ways . also , it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting . the use of “ including ,” “ comprising ,” or “ having ” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items .
a therapy system combining sensory input configured to enhance patients balance and stepping is provided . the system may include a mat that selectively receives a plurality of targets . the targets are contacted by the patient &# 39 ; s feet and return an audible signal . the system allows a healthcare professional or patient to analyze gait and balance , and correct the same if needed .