This class stores the rotation limits that define the muscle for a single human bone.
| axisLength | Length of the bone to which the limit is applied. |
| center | The default orientation of a bone when no muscle action is applied. |
| max | The maximum rotation away from the initial value that this muscle can apply. |
| min | The maximum negative rotation away from the initial value that this muscle can apply. |
| useDefaultValues | Should this limit use the default values? |