Modular ambulatory surface

A system for ambulatory gait training, comprising:

• a plurality of a modular terrain elements, each modular terrain element including:
• a pair of opposed planar surfaces including a base and a terrain surface panel, the base and terrain surface panel enclosing a void containing a terrain simulation medium, at least one of the opposed planar surfaces being flexible for accommodating deformation based on the terrain simulation medium enclosed in the void;
• the base adapted for communication with an underlying surface;
• a sidewall coupling the base and terrain surface panel along an aligned perimeter for enclosing a flexible shell around the void the terrain simulation medium defined by a plurality of filler objects having a size and texture based on a terrain type to be simulated;
• the terrain surface panel defining a therapeutic surface, the terrain surface panel opposed from the base and having an upward facing side adapted for engaging a patient, the therapeutic surface having a perimeter adapted for coupling to an adjacent modular terrain element;
• the void containing and enclosing the terrain simulation medium;
• and
• a plurality of engaging structures along the perimeter and adapted to engage a sidewall of an adjacent modular terrain element for forming a continuous simulated terrain surface, each engaging structure of the plurality of engaging structures defining an interlocking zone, the interlocking zone receptive to the engaging structures from an adjacent modular terrain element,
• the void extending into an interior of the engaging structures, the void and the interior of the engaging structures forming a continuous volume filled with the terrain simulation medium for extending the deformability of the therapeutic surface to the interlocking zone.

A modular, ambulatory surface apparatus for selective terrain based simulation, comprising:

• a modular terrain element including:
• a pair of opposed planar surfaces including a base and a terrain surface panel, the base and terrain surface panel enclosing a void containing a terrain simulation medium, at least one of the opposed planar surfaces being flexible for accommodating deformation based on the terrain simulation medium enclosed in the void;
• the base adapted for communication with an underlying surface;
• a sidewall coupling the base and terrain surface panel along an aligned perimeter for enclosing a flexible shell around the void, the terrain simulation medium defined by a plurality of filler objects having a size and texture based on a terrain type to be simulated;
• the terrain surface panel defining a therapeutic surface, the terrain surface panel opposed from the base and having an upward facing side adapted for engaging a patient, the therapeutic surface having a perimeter adapted for coupling to an adjacent modular terrain element;
• the void containing and enclosing the terrain simulation medium;
• and
• a plurality of engaging structures along the perimeter and adapted to engage a sidewall of an adjacent modular terrain element for forming a continuous simulated terrain surface, each engaging structure of the plurality of engaging structures defining an interlocking zone, the interlocking zone receptive to the engaging structures from an adjacent modular terrain element,
• the void extending into an interior of the engaging structures, the void and the interior of the engaging structures forming a continuous volume filled with the terrain simulation medium for extending the deformability of the therapeutic surface to the interlocking zone.