Filtering control signals

1. An exercise handle, comprising:

a shaft;

a strap, wherein the strap rotates independently of the shaft;

a set of sensors, wherein the set of sensors is used to detect a location of a thumb on the exercise handle, and wherein whether a left hand or a right hand is holding the exercise handle is determined based at least in part on the detected location of the thumb on the exercise handle; and

a control element;

wherein the exercise handle is coupled, via the strap, to a motor, and wherein the motor is responsive to a signal from the control element;

wherein the signal from the control element is selectively rejected based on state information relating to a state of the exercise handle.

2. The exercise handle of claim 1 , wherein the set of sensors is used to detect an observed pressure mapping, and wherein the determination of whether the left hand or right hand is holding the exercise handle is based at least in part on a comparison of the observed pressure mapping against an expected pressure mapping.

3. The exercise handle of claim 2 , wherein the expected pressure mapping is associated with a particular hand.

4. The exercise handle of claim 2 , wherein the expected pressure mapping is associated with a particular exercise movement.

5. The exercise handle of claim 1 , wherein the set of sensors is used to detect one or more digits on the exercise handle, and wherein a digit in the one or more digits is identified as the thumb.

6. The exercise handle of claim 5 , wherein the digit is identified as the thumb at least in part by determining an orientation of the digit relative to an orientation of another digit.

7. The exercise handle of claim 5 , wherein the digit is identified as the thumb at least in part by determining an end point of the digit relative to an end point of another digit.

8. The exercise handle of claim 1 , wherein while the exercise handle is wirelessly coupled to an exercise machine, the signal from the control element is rejected in response to determining that the exercise handle is at least partially physically disconnected from the exercise machine.

9. The exercise handle of claim 1 , wherein the exercise handle is coupled to an exercise machine, wherein the motor provides a load, and wherein the signal is rejected in response to determining that a speed of the motor exceeds a threshold speed.

10. The exercise handle of claim 1 , wherein the signal is rejected based at least in part on detecting that a form of a user using the exercise handle is incorrect.

11. The exercise handle of claim 1 , wherein the signal is selectively rejected based at least in part on an amount of time since a previous user interaction with the control element.

12. The exercise handle of claim 1 , wherein the determination of whether the left hand or the right hand is holding the exercise handle is further based at least in part on an orientation of the exercise handle.