Estimating fat mass with plicometry

In the course of our discussion, we have seen that it is possible to know body composition using bioimpedance analysis, while skinfolds have been used to calculate somatotype. Well, the plicometric method can also be used effectively in place of (or in association with) bioimpedance analysis in order to obtain an estimate of the percentage of fat mass. For this purpose, it is possible to use either the subscapular, suprailiac, triceps and bicipital folds (the latter to be measured in the anterior area of the arm), or the suprailiac plica alone. With regard to the subscapular, supra-iliac and tricipital folds, the method for measurement is the same as that seen in the part on the somatotype, while with regard to the bicipital fold, which is superfluous for the calculation of the somatotype, this should be taken vertically, in the region of the arm, held extended. The use of the plicometer is always the same.

Summation of skin folds

The joint use of the subscapular, supra-iliac, triceps and bicipital folds presupposes the comparison of their sum with the subject’s age and gender. The result will be an estimate of the percentage of fat mass. Details are in the table below.

MalesFemales
Flap summationAgeFlap summationAge
17-2930-3940-49>4917-2930-3940-49>49
154,81510,5
165,51611,3
176,21712,0
186,91812,7
197,51913,4
208,112,212,212,62014,117,019,821,4
218,612,612,813,22114,717,520,322,0
229,113,013,413,82215,318,020,822,5
239,613,414,014,42315,818,521,323,0
2410,113,814,515,52416,319,021,823,5
2510,514,215,015,62516,819,422,224,0
2611,014,615,616,22617,419,922,724,6
2711,515,016,216,82718,020,423,225,1
2812,015,416,717,42818,520,923,725,6
2912,515,817,218,02919,021,424,126,1
3012,916,217,718,63019,521,824,526,6
3113,316,518,119,13119,922,224,927,0
3213,716,818,519,63220,322,625,327,4
3314,117,118,920,03320,723,025,727,8
3414,417,419,320,43421,123,426,128,2
3514,717,719,620,83521,523,726,428,5
3615,118,020,021,33621,924,126,828,9
3715,518,320,421,73722,324,527,229,3
3815,818,620,822,13822,724,927,629,7
3916,118,921,122,53923,125,227,930,0
4016,419,221,422,94023,425,528,230,3
4116,719,521,823,34123,825,828,530,7
4217,019,822,123,74224,126,128,831,0
4317,320,022,424,14324,426,429,131,3
4417,520,222,724,44424,726,729,431,6
4517,720,423,024,74525,026,929,631,9
4618,020,723,425,14625,327,229,932,2
4718,320,923,725,54725,627,530,232,5
4818,621,124,025,94825,927,830,532,8
4918,821,324,326,24926,228,030,833,1
5019,021,524,626,55026,528,231,033,4
5119,321,724,926,85126,828,531,333,7
5219,521,925,227,15227,128,831,534,0
5319,722,125,527,45327,429,031,734,2
5419,922,325,727,75427,629,231,934,4
5520,122,525,927,95527,829,432,134,6
5620,422,726,228,25628,129,732,434,9
5720,622,926,528,55728,430,032,635,1
5820,823,126,728,85828,730,232,835,3
5921,023,326,929,05928,930,433,035,5
6021,223,527,129,26029,130,633,235,7
6121,423,727,429,56129,430,833,435,9
6221,623,927,629,86229,631,033,636,1
6321,824,127,830,06329,821,233,836,3
6422,024,228,030,26430,231,434,036,5
6522,224,328,230,46530,331,634,136,7
6622,424,528,530,76630,431,834,336,9
6722,624,728,731,06730,632,034,537,1
6822,824,928,931,26830,832,234,737,3
6923,025,029,131,46931,032,535,037,5
7023,125,129,331,67031,232,535,037,7
7123,325,329,531,97131,432,735,237,9
7223,525,529,732,17231,632,935,438,1
7323,725,729,932,37331,833,135,638,3
7423,925,830,132,57432,033,335,838,5
7524,025,930,332,77532,233,435,938,7
7624,226,130,533,07632,433,636,138,9
7724,426,330,733,27732,633,836,339,1
7824,626,430,933,47832,834,036,539,3
7924,726,531,133,67933,034,236,639,5
8024,826,631,233,88033,134,336,739,6
8125,026,831,434,08133,334,536,939,8
8225,226,931,634,28233,534,737,140,0
8325,327,031,834,38333,734,937,340,2
8425,427,132,034,68433,935,037,440,3
8525,527,232,134,88534,035,137,540,4
9026,227,833,035,89034,835,838,341,2
9526,928,433,736,69535,636,539,041,9
10027,629,034,437,410036,437,239,742,6
10528,229,635,138,210537,137,940,443,3
11028,830,135,839,011037,838,641,043,9
11529,430,636,439,711538,439,141,544,5
12030,031,137,040,412039,039,642,045,1
12530,531,537,641,112539,640,142,545,7
13031,031,938,241,813040,240,643,046,2
13531,532,338,742,413540,841,143,546,7
14032,032,739,243,014041,341,644,047,2
14532,533,139,743,614541,842,144,547,7
15032,933,540,244,115042,342,645,048,2
15533,333,940,744,615542,843,145,448,7
16033,734,341,245,116043,343,645,849,2
16534,134,641,645,616543,744,046,249,6
17034,534,842,046,117044,144,446,650,0
17534,917544,847,050,4
18035,318045,247,450,8
18535,618545,647,851,2
19035,919045,948,251,6
19519546,248,552,0
20020046,548,852,4
20520549,152,7
21021049,453,0

Estimation of fat mass using the suprailiac plica

The above also applies to the use of the suprailiac plica alone. The table with references is below.

Men
Age2-34-56-78-910-1112-1314-1516-1718-1920-2122-2325-2526-2728-2930-3132-3334-36
Up to 202.03.96.28.510.512.514.316.017.518.920.221.322.323.123.824.324.9
21-252.54.97.39.511.613.615.417.018.620.021.222.323.324.224.925.425.8
26-303.56.08.410.612.714.616.418.119.621.022.323.424.425.225.926.526.9
31-354.57.19.411.713.715.717.519.220.722.123.424.525.526.327.027.528.0
36-405.68.110.512.714.816.818.620.221.823.224.425.626.527.428.128.629.0
41-456.79.211.513.815.917.819.621.322.824.725.526.627.628.429.129.730.1
46-507.710.212.614.816.918.920.722.423.925.326.627.728.729.530.230.731.2
51-558.811.313.715.918.820.021.823.425.026.427.628.729.730.631.231.832.2
56 and beyond9.912.414.717.019.121.022.824.526.027.428.729.830.831.632.332.933.3
SkinnyIdealMediumAbove average
Women
Age2-34-56-78-910-1112-1314-1516-1718-1920-2122-2325-2526-2728-2930-3132-3334-36
Up to 2011.313.515.717.719.721.523.224.826.327.729.030.231.332.333.133.934.6
21-2511.914.216.318.420.322.123.825.527.028.429.630.831.932.933.834.535.2
26-3012.514.816.919.020.922.724.526.127.629.030.331.532.533.534.435.235.8
31-3513.215.417.619.621.523.425.126.728.229.630.932.133.234.135.035.836.4
36-4013.816.018.220.222.224.025.727.328.830.231.532.733.834.835.636.437.0
41-4514.416.718.820.822.824.626.327.929.430.832.133.334.435.436.337.037.7
46-5015.017.319.421.523.425.226.928.630.131.532.834.035.036.036.937.638.3
51-5515.617.920.022.124.025.927.629.230.732.133.434.635.636.637.538.338.9
56 and beyond16.318.520.722.724.626.528.229.831.332.734.035.236.337.238.136.939.5
SkinnyIdealMediumAbove average