Knee Bend Test

Setting up

  1. Use a backdrop screen that is either solid blue or solid green.  Do not use a sheet or other material unless it is pulled taut (no folds).  Place the back drop screen against a solid wall, where you will be taking the client photos.
  2. Use dispersive lighting to prevent all shadows (umbrella lights).
  3. Use a digital high resolution camera (at least 6Mb pixel).
  4. Use high resolution JPEG format (not raw data) - 300 dpi 
  5. Mount camera on a tripod.  This will insure that the camera does not move when the photos are taken.
  6. Connect the camera to a remote control, so that the body of the camera is not touched when the photos are taken.



Correct Position of Feet



















Stand barefooted on a hard floor, with your feet separated in a comfortable position and pointing straight forwards (Refer to Correct Placement of Feet above)

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Taking the Two Photos


​​Photo Number 1 - Knees Straight​

  1. Use a green or blue background.
  2. Standing in a comfortable position, with your feet facing straight forwards and slightly separated, have your assistant trace your feet on a piece of cardboard or thick paper (refer to Correct Placement of Feet at the top of this page)
  3. Attach that cardboard or paper to the ground using tape
  4. With your feet placed exactly within that tracing on the cardboard, straighten your knees and look straight forward.
  5. Make sure your weight is directly over your heels.
  6. Relax and take the photo exactly as shown in the example photo below.  Note: In the below photo, the feet are placed in the correct position.





























Photo Number 2 - Knees Bent


  1. Use the same green or blue background
  2. With your feet placed exactly within the tracing on the cardboard (or thick paper), place your hands on the wall and lean forward.  
  3. Bend your knees approximately 45 degrees.  Look straight forward.
  4. Make sure your weight is on the front part of your foot, not on your heels.
  5. Relax and take the photo exactly as shown in the example photo above. 



Labeling the Photos​

  1. Label Photo Number 1 exactly as follows:  KBT Kn Str
  2. Label Photo Number 2 exactly as follows:  KBT Kn Bent