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A cable exercise machine includes a first pull cable and a second pull cable incorporated into a frame. Each of the first pull cable and the second pull cable are linked to at least one resistance mechanism. The at least one resistance mechanism includes a flywheel and a magnetic unit arranged to re

A cable exercise machine includes a first pull cable and a second pull cable incorporated into a frame. Each of the first pull cable and the second pull cable are linked to at least one resistance mechanism. The at least one resistance mechanism includes a flywheel and a magnetic unit arranged to resist movement of the flywheel.

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1. A cable exercise machine comprising: a frame;a first pull cable supported by the frame;a second pull cable supported by the frame;a resistance mechanism operationally linked to each of the first pull cable and the second pull cable, the resistance mechanism comprising: a central shaft;a flywheel

1. A cable exercise machine comprising: a frame;a first pull cable supported by the frame;a second pull cable supported by the frame;a resistance mechanism operationally linked to each of the first pull cable and the second pull cable, the resistance mechanism comprising: a central shaft;a flywheel rotatable about the central shaft in just a single direction;multiple cable spools rotatable about the central shaft in the single direction and in another direction opposite of the single direction; anda magnetic unit configured to selectively resist movement of the flywheel;a sensor configured to track revolutions of the flywheel; anda display in communication with the sensor and configured to present information derived from the sensor. 2. The cable exercise machine of claim 1, wherein the display is further configured to present a calorie indicator. 3. The cable exercise machine of claim 2, wherein the calorie indicator is configured to depict a calorie count based on input from the sensor and the resistance mechanism. 4. The cable exercise machine of claim 2, wherein: the cable exercise machine further comprises an accelerometer associated with the flywheel; andthe calorie indicator is configured to depict a calorie count based on input from the accelerometer. 5. The cable exercise machine of claim 2, wherein the calorie indicator is configured to depict a calorie count based on input from another exercise machine. 6. The cable exercise machine of claim 1, wherein: the cable exercise machine further comprises an accelerometer; andthe display is further configured to present a work indicator configured to depict a calculation of work performed by pulls on the first pull cable and the second pull cable based on input from the accelerometer, the resistance mechanism, and the sensor. 7. The cable exercise machine of claim 1, further comprising: a base;a third pull cable attached to the base; anda fourth pull cable attached to the base;wherein each of the third pull cable and the fourth pull cable are operationally linked to the resistance mechanism;wherein the frame extends vertically from the base; andwherein the first pull cable and the second pull cable are attached to an upper portion of the vertically oriented frame. 8. The cable exercise machine of claim 1, wherein the display is incorporated into a control panel of the cable exercise machine. 9. The cable exercise machine of claim 8, wherein the control panel is configured to execute a pre-programmed workout when instructed through an input device. 10. The cable exercise machine of claim 8, wherein the control panel comprises an input mechanism configured to change a resistance of the resistance mechanism. 11. The cable exercise machine of claim 1, wherein the display is further configured to present a resistance level indicator configured to depict a current level of resistance exerted by the magnetic unit on the flywheel. 12. The cable exercise machine of claim 1, further comprising multiple tensioner pulleys configured to reduce slack in the first pull cable and the second pull cable. 13. The cable exercise machine of claim 12, wherein: the resistance mechanism further comprises a cross bar spanning from a first side to a second side of the frame and an assembly member supported by the cross bar, oriented perpendicularly to the cross bar, and defining an opening through which the central shaft is inserted and supported; andthe multiple cable spools are coaxially mounted around the central shaft next to one another on only a single side of the flywheel and no cable spools are coaxially mounted around the central shaft on the other side of the flywheel. 14. The cable exercise machine of claim 13, wherein: the flywheel comprises a magnetically conductive rim;the resistance mechanism further comprises a fixture and an arm pivotally connected to the fixture, the arm defining an open slot and configured to support the magnetic unit and a second magnetic unit on either side of the open slot to provide a magnetic flux within the open slot, the fixture configured to be electronically controlled to selectively pivot the arm toward and away from the magnetically conductive rim of the flywheel between: a lower resistance position in which no portion of the magnetically conductive rim is surrounded by the magnetic unit and the second magnetic unit within the open slot of the arm; anda higher resistance position in which at least a portion of the magnetically conductive rim is surrounded by the magnetic unit and the second magnetic unit within the open slot of the arm. 15. The cable exercise machine of claim 14, further comprising a control panel incorporated into an outer cover of the frame, the control panel comprising: connections for communications with other devices;an input device configured to instruct the fixture of the resistance mechanism to selectively pivot the arm to change a current level of resistance exerted by the magnetic unit and the second magnetic unit on the flywheel; andan input device configured to execute a pre-programmed workout. 16. The cable exercise machine of claim 15, wherein: the sensor comprises a magnetic sensor;the resistance mechanism further comprises magnetic features;the magnetic sensor is further configured to count the magnetic features as they rotate simultaneously with rotation of the flywheel; andthe magnetic sensor is further configured to track quarter revolutions of the flywheel using the magnetic features. 17. The cable exercise machine of claim 1, further comprising a tracking system comprising processing resources and memory resources, wherein: the memory resources comprise programmed instructions;the programmed instructions comprise a counter and an energy tracker;the counter is configured to count a number of quarter revolutions of the flywheel;the energy tracker is configured to calculate a number of calories burned while rotating the flywheel; andthe processing resources comprise a processor configured to process the programmed instructions. 18. The cable exercise machine of claim 17, wherein the processing resources and the memory resources are located in a user device that is remote from the cable exercise machine and communicate with the cable exercise machine over a network connection. 19. The cable exercise machine of claim 17, wherein the memory resources are in communication with the processing resources over a network. 20. The cable exercise machine of claim 17, wherein the programmed instructions are downloadable to the cable exercise machine through a portable flash memory. 21. The cable exercise machine of claim 17, wherein the programmed instructions are downloadable to the cable exercise machine over a network connection. 22. The cable exercise machine of claim 1, wherein the cable exercise machine is configured to determine how far the first pull cable or the second pull cable is pulled. 23. The cable exercise machine of claim 1, wherein the sensor is insulated from return forces of the first pull cable and the second pull cable. 24. A cable exercise machine comprising: a frame;a first pull cable supported by the frame;a second pull cable supported by the frame;a resistance mechanism linked to each of the first pull cable and the second pull cable, the resistance mechanism comprising a flywheel and a magnetic unit configured to resist movement of the flywheel;a sensor configured to track revolutions of the flywheel;an accelerometer associated with the flywheel;a control panel in communication with the resistance mechanism, the control panel comprising a first input mechanism for changing a resistance of the resistance mechanism; anda display in communication with the sensor, the display configured to present: information derived from the sensor; anda work indicator configured to depict a calculation of work performed by pulls on the first pull cable and the second pull cable based on input from the accelerometer, the resistance mechanism, and the sensor. 25. The cable exercise machine of claim 24, wherein the display is further configured to present a calorie indicator. 26. The cable exercise machine of claim 25, wherein the calorie indicator is configured to depict a calorie count based on input from another exercise machine. 27. A cable exercise machine comprising: a frame;a first pull cable supported by the frame;a second pull cable supported by the frame;a resistance mechanism linked to each of the first pull cable and the second pull cable, the resistance mechanism comprising: a central shaft;a flywheel rotatable about the central shaft in just a single direction;a magnetic unit configured to selectively resist movement of the flywheel; andmultiple cable spools rotatable about the central shaft in the single direction and in another direction opposite of the single direction;a sensor configured to measure an angular position of the flywheel;an accelerometer configured to measure a rotational speed of the flywheel;a control panel in communication with the resistance mechanism, the control panel comprising an input mechanism for changing a resistance of the resistance mechanism; anda display in communication with the sensor, the display configured to present: a calorie indicator configured to depict a calorie count based on input from the sensor and the resistance mechanism; anda work indicator configured to depict a calculation of work performed by pulls on the first pull cable and the second pull cable based on input from the accelerometer, the resistance mechanism, and the sensor.