I am getting a little frustrated trying to estimate my body fat %.
I am 171cm (5'8'') and 73kg (160lbs). My waist is 87cm.
Now if I do "tape measurement" (height : 171, neck 37, abdomen 87) the calculator gives me 20% bf.
If I try calliper method (Jackson/pollock formula). I get :
chest : 14mm, Abdominal : 20mm, Thigh 14mm and the calculator display 14% bf.
If I try iliac crest measurement (from accu measure table) I can pinch 12mm which gives me 13.6%. If I try to pinch a little on the side (directly above the middle of hip bone) I get 14mm). To be able to pinch 20mm (which would be 20% bf) I have to pinch a little farer than directly below my armpit)
I am obviously doing something wrong here
Do you have any tips of proper pinching technique for callipers ? How to locate iliac crest ? How to estimate bf% from other measurements ?