Estimating Weight From Knee Height

Amputation below the knee transtibial δw δws δwt1 lstp lkn 13. Therefore new corrected formulas for estimating the lost proportions of total body weight in the case of persons with amputations below or above the knee may be written as follows.

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Estimating weight from knee height. The measure of knee height may be useful in addition to sitting height and standing height. Help the patient to remove any footwear and adjust clothing so their leg is exposed below the knee. Equations to calculate height and estimation of height from ulna length 101 equations for calculating height from knee height chumlea and guo. Where lstp length of the stump lkn knee height and lbtk buttock knee length. Knee height is correlated with stature and until recently was the preferred method for estimating height in bedridden patients. Knee height is measured using a sliding broad blade caliper.

Weight if subject cannot be weighed use a weight recently documented in their notes or use self reported weight if reliable and realistic. The must equations were validated for use on the left side mag 2011. Chumlea et al 1985 1994 men 1860 years predicted height cm knee height cm 188 7185 6090 years predicted height cm knee height cm 208 5901. Estimating stature from knee height for persons 60 to 90 years of age j am geriatr soc. Measure the left leg if possible. Hold a tape measure.

It is a measurement of the distance from the base of the foot to the top of the knee. A device designed for this purpose is commercially available. The patients height is then estimated using a standard formula. Sops from nutritional assessment platform. The proportion of knee height compared. In general children maintain a fairly constant growth curve which is why these charts can be used to predict the adult height of a child to a certain extent.

Measurements such as height weight and head circumference of a child can be compared to the expected values based on data from these growth charts of children of the same age and sex. Kyphosis or scoliosis it is preferable to use ulna length to estimate height. Knee height is correlated with stature and is sometimes used to estimate height in bedridden patients. Help the patient to sit in a chair with their knee at a right angle. Males weight kg knee height 110 mac cm 307 7581 and females weight kg knee height 1 01 mac cm 2 81 66 04. We used the following equations produced by ross laboratories to calculate weight.

Estimating height from knee height.