Scan preparation

Posture Scan involves following simple audio and video instructions and recording the body during carefully selected movements — the recording is done in 3D and video at 30 frames per second.

Before a scan

Internet

To start the Posture Scan and the Movement Lab software, secure login via the internet is necessary. Internet is also needed to send the 3D scan data to the cloud library. If the internet connection drops out, the scans are stored in a queue on the computer and sent to the cloud library next time Posture Scan is opened and/or when the internet connection is restored. Slow internet will affect the speed of upload/download. Each scan file is approximately 20MB.


System space

Ensure that system disk drive has at least 10GB of free space.


Updates

  • Update Microsoft Window (Windows 10, Windows 8) to the latest version.

  • Ensure installation of the latest drivers from the vendor for the Graphics cards and USB controllers.


Checks

  • Connect the power for the XboxOne® Kinect sensor. A light will shine on the adaptor, and at the front of the sensor. Calibrate the Kinect Xbox One® sensor and the floor.

  • Check that Windows Media Player is operable (open it and try a video).

  • Check that the front side of Kinect sensor is clean, and not scuffed.

  • Proper position of the sensor - height from the floor, tilt and angle.

  • The computer is plugged into a power supply. Calibration should be checked each day BEFORE a series of scans.

It is strongly recommended that a supervisor is nearby to offer physical or technical assistance when needed.


Clothing

Posture Scan records the surface of the body. It works best with

  • tight-fitting cotton underwear,

  • tight-fitting non-reflective clothing,

  • bare skin

so the sensor can see the exact outline of the body. Below is a list of clothing requirements, possible issues, and how to resolve them. Unsuitable reflective clothing will be detected by the intelligent software, just before starting the recording, but after the registration procedure. To ensure that data error is minimised, the system will ask for the unscannable item to be removed before the recording proceeds.

Clothing issues/requirements Solution
A jacket, wide brimmed hat or additional accessories disrupt the natural outline of the body. Remove accessories.
Oversized clothing like baggy basketball shorts or an oversized shirt will disrupt the natural outline of the body. Remove the oversized clothing for accurate tracking of the head, shoulders, hips, knees and the ankles.If unable to remove the clothing then pin it using a paper clip tightly behind the body part. Ensure to roll up pants to see the ankles,and pin loose cloth tightly behind the limbs.
A dress will disrupt the outline of the body Do not wear a skirt or a dress.
Shoes may affect the balance of the person, and may be reflective. Remove shoes before the scan.
Loose hair or long hair in a ponytail will hang to the side during side bending, and the software may confuse the hair with the shoulder, causing false results. The hair should be tight on the scalp in a bun behind the head, not above the head. Tracking data should always be checked in Movement Lab.
Full body tattoos might not be detected by the sensor. Cover the skin with tight clothing to improve the tracking.
Some fabrics in some clothes contain synthetic or reflective material, which does not work well with the sensor. Examples include some stretch jeans, reflective fabric in training gear, and Kevlar motorbike trousers. Removing the clothing is the only way to continue with the scan.

Responsibility

Qinematic values safety, privacy and personal integrity. Prior to a scan, individuals are asked to give informed consent by ticking the box on the screen. They are giving permission to the scan provider to control their personal data. They also agree to undertake the tasks at their own risk, and to ask for assistance as required.

 Consent of the individual

Every individual who does a Posture scan is given the opportunity to agree to the Privacy Policy statement before proceeding with the scan. This is to ensure that an individual understands that their data is processed by Qinematic, and controlled by the Organisation or Provider. The Privacy Policy is summarised at the start of every scan, and the full text can be read via a link. Ticking the box is considered giving informed consent.

In Europe, in accordance with the GDPR, children under the age of 16 must have parental consent to allow a Provider to control their personal data.

Providers are asked to be aware of their local obligations.


Safety of the individual

Safety is extremely important for Qinematic. For technical reasons, the service is limited to accommodate people with all four limbs, and whom can stand and walk independently without assistance or an assistive device. Attempting an exercise is only recommended if an individual is confident that they can perform a task  voluntarily. Exercises should not be performed if there is any risk of falling, injury or significant discomfort. To avoid any accidents, individuals and Providers should consider the physical, sensory and cognitive abilities of the test person before starting the test. Poor cognition, poor eyesight, poor hearing, poor balance, pain, fear of falling or fear of pain can affect function. Always practise the squat and balance exercises before the scan begins, to help the software determine the level of ability. Only continue with a scan if the Provider and the test person are sure that the exercise can be performed safely.  Ask for assistance if in any doubt about ability to safely perform a task.

The basic criteria for the test person to do the exercise safely is if they can stand independently on 1 leg. As a general rule - if they live at home alone, can ascend/descend a step or stairs safely and without a rail, then they should be safe. If they cannot go down stairs without a rail, then they probably need supervision, or should not do the tests.

Always remind an individual to practise an exercise along with the instruction video. This will help familiarise them with the tasks, and improve repeatability. To allow a scan at lower levels of function, the software will activate ‘Easy mode’ for partial weight bearing in single leg stance and single leg squat. After three failed attempts at these tasks, the exercise will end and go to the next task. The final attempt will be recorded.

Single-leg squat in Easy-Mode

Single-leg squat in Easy-Mode

Single-leg balance in Easy-Mode

Single-leg balance in Easy-Mode

Identification of the individual

It is best to use a consistent Personal Identification (PID) system to identify test persons. The PID can be an email address that is memorable and tends to follow a person for their lifetime. It can also be a personal number or membership number. Teams or researchers may use a coded system to keep people anonymous, and keep a separate register of names.