MoveLab® uses artificial intelligence that is based on human vision, and in many ways it behaves in the same way. For instance, it cannot accurately identify joints that it cannot see.
Therefore, subjects should be in clear view of their camera. The camera should be vertical, rather than looking up or down at the subject.
To maximise the accuracy of predictions the subject should be in good lighting, tight fitting clothing, and perform movements in unclutted environments.
The specific joint to be tracked should be in full view of the camera. If the intention is to track a left joint, the left side of the body should be in full view.
The required positioning and orientation of the subject will vary, depending upon the specific joint to be tracked. Please review our separate guidance for each joint angle you wish to track.
For all joints except wrist pronation and supination, as much of the subject as possible should be in view of the camera, particularly the subjects head, and the specific body parts to be tracked.
The first option on MoveLab® is to choose between the camera built into your device, and an external webcam if you have one connected.
The second option is to select what joint you would like to track. For each option we have a sepate tutorial video explaining how the subject should be positioned.
The next option is to choose whether you wish to track the left joint or right joint. The chosen side will be indicated.
The camera button will allow you to capture and export a single image frame of your subject, at that moment.
The video camera button will begin filming a video of your subject. The button will change to show recording, and you will need to click it again to stop the recording.
By default, images and videos will include your subject along with the avatar. By deselecting the, 'include original' option, your images and videos will only include, the non-identifiable avatar on a white background. This could be a better option for sharing.
The final option, is to 'log data'. If this option is selected, a CSV file listing the joint angle in each frame, will be exported, alongside any videos that you capture.
When filming, these options are locked.
Please refer to the general guidance first.
The elbow angle is derived from the line connecting the elbow and shoulder, and the line connecting the elbow and wrist.
Subjects should be positioned a minimum of 2-3 metres from the camera to ensure that their head, shoulder, elbow and wrist will all be in full view of the camera throughout the movement.
They should be oriented at 90° so that they are side-on to the camera with the side to be tracked in full view.
Please refer to the general guidance video first.
The knee angle is derived from the line connecting the knee and hip, and the line connecting the knee and ankle. It can therefore be used to assess kneef and extension.
Subjects should be positioned a minimum of 3-4 metres from the camera to ensure that their whole body, including their head will all be in full view of the camera throughout the movement.
They should be oriented at 90° so that they are side-on to the camera, with the side to be tracked in full view.
Please refer to the general guidance first.
In the frontal plane the hip angle is derived from the line connecting the hips, and the line connecting the hip and knee. It can therefore be used to assess hip abduction and adduction.
Subjects should be directly facing the camera, and positioned a minimum of 3-4 metres from the camera to ensure that their whole body, including their head, will all be in full view of the camera throughout the movement.
Please refer to the general guidance video first.
In the sagittal plane the hip angle is derived from the line connecting the hip and shoulder, and the line connecting the hip and knee. It can therefore be used to assess hip and extension.
Subjects should be positioned a minimum of 3-4 metres from the camera to ensure that their whole body, including their head will all be in full view of the camera throughout the movement.
They should be oriented at 90° so that they are side-on to the camera, with the side to be tracked in full view.
Please refer to the general guidance video first.
The shoulder angle is derived from the line connecting the hip and shoulder, and the line connecting the shoulder and elbow. It can therefore be used to assess the shoulder through two different planes of movement, depending on the orientation of the subject.
Subjects should be positioned a minimum of 3 metres from the camera to ensure that their head, shoulder, hip and wrist, will all be in full view of the camera throughout the movement.
Shoulder and extension is indicated when the subject is in the sagittal plane, oriented at 90° so that they are side-on to the camera, with the side to be tracked in full view.
Shoulder abduction and adduction is indicated when the subject is in the frontal plane, and directly facing the camera.
Please refer to the general guidance video first.
The wrist angle is derived from the line connecting the elbow and wrist, and a line connecting the wrist with the third metacarpophalangeal joint (MCP). Therefore, depending on wrist orientation, it can be used to indicate wrist flexion and extension, or ulnar and radial deviation.
Subjects should be positioned a minimum of 1-2 metres from the camera to ensure that their head, shoulder, elbow and wrist, will all be in full view of the camera throughout the movement.
They should be oriented at 90° so that they are side-on to the camera, with the side to be tracked in full view.
The subject should be positioned with their elbow flexed at 90 degrees and tucked against their side, so that the forearm is horizontal.
To assess wrist flexion and extension the subject should begin with hand outstretched in a pronated position which should register 0 degrees.
To assess ulnar and radial deviation the subject should begin with the hand outstretched in a 'neutral' anatomical position, with thumb upward, which should register 0 degrees.
Please refer to the general guidance video first.
Subjects should be positioned approximately 1 metre from the camera to ensure that their hand and wrist are in full view of the camera throughout the movement. There is no need for the head to be visible for this movement.
The subject should be oriented at 90° so that they are side-on to the camera, with the hand and wrist to be tracked in full view.
The subject should be positioned with their elbow flexed at 90 degrees and tucked against their side, so that their forearm is horizontal.
The subject should begin with the hand outstretched in a 'neutral' anatomical position, with thumb pointing upward, which should register 0 degrees.
As the subject turns their forearm and hand to face upwards or downward, this will be reflected in the angle displayed.
We are working very closely with a number of innovative NHS and private clinicians to solve major healthcare challenges, and are always excited to learn about other opportunities to drive progress and collaborate