KineBody Pro

Movable 3D Human Model

KineBody Pro Instructions:

(last updated 221206)

Using Unlimited Range of Motion (ROM)


With a KineBody Pro PoseTools subscription, you can disable the prescribed range of motion (ROM) limits for any joint degree-of-freedom (DOF). By default, ROM limits are 'enabled' so as to limit the joint movement to a realistic range. For example, when you select the tibio-femoral (knee) joint, you can move it up to 140° in flexion or 5° in extension. [These upper & lower limit values are displayed at the ends of the corresponding slider for that DOF, e.g. :

     flexion/extension (°): [ 0.000] -5 [--[]-------------------------] 140 ].

The upper and lower limit values apply not only when you use the slider, but also if you move the joint using the joystick (i.e., by dragging across the viewing area).

The upper & lower limit values are generally average values for adult populations, and as such they may be too restrictive to represent highly flexible individuals.


To enable or disable the range limits, click or tap on the ‘Unlimited ROM’ checkbox (located in the 'Move' subpanel on the right side).

Normally, the box is unchecked, indicating that the ROM limits are active. When the box is checked, you'll be able to move any joint without limit, i.e., over a range of ±180°. (Such wide ranges may of course be very unrealistic, but that’s the downside of using this feature). The checkbox state applies globally: all joints & DOFs will be limited, or, all will be unlimited.

When you uncheck the Unlimited ROM checkbox, to re-enable the limits, note that any ‘out-of-range’ DOFs will not automatically be returned to the realistic range. Rather, they will remain as is, until you try to adjust them again. This makes it possible to disable the limits selectively: you can disable limits before adjusting one particular joint DOF, but then re-enable them before adjusting any subsequent joints, without changing the out-of-range joint. With this capability, you may have to tolerate an adverse side effect: an out-of-range joint may ‘jump’ back to fit within the limits, if you try to adjust that joint after the limits are restored.