Device for safely strengthening core muscles

A computing device comprising:

• a processor;
• a memory store;
• a display;
• and
• a non-transitory, computer-readable medium containing instructions that, when executed by the processor of the computing device, perform stages for optimizing an exercise device, the stages comprising:
• receiving information from a first sensor associated with a first rotating frame rotatably mounted to a support frame;
• calculating a rotation angle of the first rotating frame relative to the support frame based on the received information from the first sensor;
• receiving information from a second sensor associated with a second rotating frame rotatably mounted to the first frame;
• calculating a rotation angle of the second rotating frame relative to the first frame;
• and
• displaying values associated with the calculated rotation angles of the first and second rotating frames.

An exercise system that tracks user progress over time, comprising:

• at least one support frame;
• a first rotating frame rotatably coupled to the at least one support frame;
• a second rotating frame rotatably coupled to the first rotating frame;
• a seat coupled to the second rotating frame;
• a processor;
• a memory store;
• a display;
• and
• a non-transitory, computer-readable medium containing instructions that, when executed by the processor of the computing device, perform stages for optimizing an exercise device, the stages comprising:
• receiving information from a first sensor associated with the first rotating frame;
• calculating a rotation angle of the first rotating frame relative to the support frame based on the received information from the first sensor;
• receiving information from a second sensor associated with a second rotating frame;
• calculating a rotation angle of the second rotating frame relative to the first frame;
• and
• displaying values associated with the calculated rotation angles of the first and second rotating frames on the display.