What is a Large Sliding Caliper Used For?
A large sliding caliper is used for the following measurements:
- Shoulders or Biacromial
- Hip or Biiliocrestidio - Bicrestal
- Transverse Thorax
- Thorax Diameter
How Much does a Large Sliding Caliper Cost?
A large sliding caliper typically costs between $125 - $400 in the United States.
How to Use a Large Sliding Caliper
Note: To effectively use a large sliding cailper requires training with a certified instructor and supervised practice. The following instructions are just an introduction. You can learn more about ISAK anthropometric training courses here.
Measurements with a Large Sliding Caliper
Shoulder Diameter or Biacromial:The anthropometrist should be behind the subject to measure, which must stand with shoulders relaxed. The acromial processes of both shoulders are identified to place each branch of the caliper at an angle of 45 degrees upwards. |
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Hip Diameter or Biiliocrestidio - Bicrestal:is measured facing the subject and standing. The lateral edges of the upper iliac ridges are identified, where each branch of the caliper is located at an angle of 30 degrees upwards. |
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Transverse Thorax Diameter:The fourth rib is referenced (taken by touching from the collarbone counting the intercostal spaces to the middle of the 3rd and 4th space) is marked with an erasable pencil. In front of the subject to measure, the caliper is located so that the base of the caliper is at the same height of the mark and the branches 30 degrees down touching the ribs. |
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Front-Back Thorax Diameter:This measurement is made easier with a caliper that has additional guides such as the Campbell 20 caliper. The subject to measure must be seated. The anthropometrist must be on the side and place one of the caliper guides at a 45-degree angle at the point marked on the 4th rib mark (for transverse thorax) and the posterior guide on spiny apophysis – the same height as the previous one. The subject must be breathing normally, the measurement is read during an exhale, to which the cm that measure the guides are subtracted. |
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