Flexible lifting mechanism for anti-gravity treadmill

A flexible lifting mechanism for an anti-gravity treadmill, comprising:

• an airbag;
• and
• a treadmill frame, wherein the treadmill frame comprises a front frame, a base, and a middle frame, wherein the flexible lifting mechanism is configured to be mounted between the airbag and the treadmill frame, wherein
• the flexible lifting mechanism comprises;
• a waist loop fixed to an upper side of the airbag;
• a waist loop fixing strap, wherein:
• a first end of the waist loop fixing strap is fixed to an upper side of the airbag;
• and
• a second end of the waist loop fixing strap is fixed to the front frame;
• waist loop handles, wherein:
• a first end of each of the waist loop handles are hingedly connected to the waist loop;
• and
• a second end of each of the waist loop handles are engaged with the middle frame;
• adjustment roller assemblies, wherein each of the adjustment roller assemblies are mounted within the base and configured to rotate relative to the base;
• and
• height adjustment straps, wherein:
• a first end of each of the height adjustment straps are fixedly connected to the waist loop;
• a second end of each of the height adjustment straps are fixedly connected to a corresponding one of the adjustment roller assemblies;
• and
• wherein the height of the airbag is adjusted by controlling shortening or elongation of the height adjustment straps by rotating the adjustment roller assemblies relative to the base such that the height of the waist loop may be positioned by positioning pins extending through the adjustment roller assemblies.