Non-linear resistance based exercise apparatus

An exercise apparatus, comprising:

• a base;
• a first vertical support member coupled to said base;
• a second vertical support member coupled to said base;
• wherein said first and second support members converge rearwardly and inwardly relative to one another and are coupled at a vertex and wherein said first and second support members diverge forwardly and laterally relative to said vertex;
• and at least one resistance assembly disposed on said first vertical support member including at least one elastic resistance member, said at least one elastic resistance member having a first end and a second end, a first coupling feature connected to said first end of said at least one elastic resistance member, a second coupling feature connected to said second end of said at least one elastic resistance member, a top guide corresponding to said at least one elastic resistance member, said top guide being coupled to a top portion of said first vertical support member above said vertex, a bottom guide corresponding to said at least one elastic resistance member, said bottom guide being coupled to a bottom portion of said first vertical support member below said vertex;
• and an intermediate guide corresponding to said at least one elastic resistance member, said intermediate guide being coupled to said first vertical support member at said vertex.

An exercise apparatus, comprising:

• a base including a front surface, a back surface, a first side surface, and a second side surface;
• a first vertical support member coupled to said base on said first side near a center of said first side;
• a second vertical support member coupled to said base on said second side near a center of said second side, wherein said first and second support members converge relative to one another to form a first vertex and a second vertex and wherein said first and second support members diverge relative to one another above said first and second vertex;
• and
• a first resistance assembly disposed on said first vertical support member including at least one elastic resistance member, said at least one elastic resistance member having a first end and a second end, a first coupling feature connected to said first end of said at least one elastic resistance member, a second coupling feature connected to said second end of said at least one elastic resistance member, a top guide corresponding to said at least one elastic resistance member, said top guide being coupled to a top portion of said first vertical support member above said first vertex, a bottom guide corresponding to said at least one elastic resistance member, said bottom guide being coupled to a bottom portion of said first vertical support member below said first vertex;
• and an intermediate guide corresponding to said at least one elastic resistance member, said intermediate guide being coupled to said first vertical support member at said first vertex;
• a second resistance assembly disposed on said second vertical support member including at least one elastic resistance member, said at least one elastic resistance member having a first end and a second end, a first coupling feature connected to said first end of said at least one elastic resistance member, a second coupling feature connected to said second end of said at least one elastic resistance member, a top guide corresponding to said at least one elastic resistance member, said top guide being coupled to a top portion of said second vertical support member above said second vertex, a bottom guide corresponding to said at least one elastic resistance member, said bottom guide being coupled to a bottom portion of said second vertical support member below said second vertex, and an intermediate guide corresponding to said at least one elastic resistance member, said intermediate guide being coupled to said second vertical support member at said second vertex;
• a vertically oriented base extension member having a first end and a second end, wherein said first end of said vertically oriented base extension member is coupled to a back portion of said base;
• a back pad coupled to said second end of said vertically oriented base extension member, wherein said back pad is disposed at said first vertex and said second vertex;
• a support bar coupled to said second end of said vertically oriented base extension member by a pivot assembly configured to selectively position said support bar in a first position parallel to said base around said vertex of said first vertical support member and said vertex of said second vertical support member and a second position includes said support bar oriented substantially perpendicular to said base;
• wherein said support bar is a “C” shaped member having a back portion and a plurality of protruding members, wherein a distance between said protruding members is sufficiently wide to rotate said support bar about said pivot assembly coupled to said vertically oriented base extension member without engaging said first and second support member
• a substantially horizontal protrusion disposed on top of each of said first and second support member;
• and
• a horizontally oriented pull-up bar traversing said substantially horizontal protrusion disposed on top of each of said first and second support member substantially above a median plane of said base;
• wherein said first vertical support member is coupled to said base near a midpoint of said first side surface, second vertical support member is coupled to said base near a midpoint of said second side surface, said first and second vertical support members below said first and second vertex are oriented toward said back surface of said base, and said first and second vertical support members above said first and second vertex is oriented toward said front surface of said base.