HPI Osteo Caliper™ Kit

Frequently Asked Questions

How can I be sure that I am measuring the correct location on the bones?
If you are not sure about the exact location of the measurement points on the wrists, move the caliper tips in small circular motions on the skin, until you get the highest number. That indicates that you are on the widest part of the joint and exactly on the bone edges.

How much practice do I need until I can become an expert in using this method?
If you want to integrate this method as part of your business, practice it first on friends and family, performing at least 30 measurements. We also highly recommend that you attend our 4 hr course dedicated to this method: HPI Healthy Weight Range Assessment Training

I am not sure how to adjust the client’s fat-free mass, when necessary.
For an accurate adjustment of the fat-free mass (FFM), observe the way the actual weight is positioned in relation to the healthy weight limits:

a. No FFM adjustment is necessary: The weight limits appear to be accurate. In this situation, the way the actual weight is positioned in relation to the weight limits appears normal, considering client’s exercise habits and their physical appearance.

b. Calculated FFM is too low: The weight limits do not seem accurate and appear too low. In this situation, the actual weight is usually close to or above the upper weight limit; however the individual does not appear to be overweight or almost overweight. Instead, their appearance shows a healthy weight, without excess fat. If you attempt to imagine how the client would look at a weight close to the lower weight limit and realize that the client would be extremely thin, the calculated FFM is too low. In this case, increase the FFM by using the Fat-Free Mass Adjustment diagram.

c. Calculated FFM is too high: The weight limits do not seem accurate and appear too high. In this situation, the actual weight is usually close to or below the lower weight limit; however the individual does not appear to be underweight or almost underweight. Instead, their appearance shows a healthy weight. If you attempt to imagine how the client would look at a weight close to the higher weight limit and realize that the client would have excess fat, the calculated FFM is too high. In this case, decrease the FFM by using the Fat-Free Mass Adjustment diagram.