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ANTHROPOMETRIC DESCRIPTIONS

"X" TO DIMENSIONS 

"X" refers to a mark placed on the thumb side of the forearm and from which the distances to the Hand Grip, Finger-Tip, Hook, and Thumb-Tip interfaces on the hand are measured.  The most convenient location of the "X" mark was found to be on the distal third of the forearm.  Measurements are taken from both arms. It is not necessary that the locations of marks on both arms be identical.


"X" TO GRIP

With the elbow flexed to 90 degrees and the forearm and hand horizontal and forward, a 1 inch diameter dowel is held in the grip of the hand and oriented vertically. The distance between the "X" mark and the near surface of the dowel, parallel to the axis of the forearm, is measured.


"X" TO HOOK

The arm and hand are oriented as with "X" to Fingertip. The distance between the "X" mark and the most distal crease in the index finger is measured. 

"X" TO FINGERTIP

The arm is oriented as with "X" To Grip, but the hand is flattened and thrust forward. The distance between the "X" mark and the tip of the index finger is measured. 


"X" TO THUMB   

The arm and hand are oriented as with "X" to Hook, but with the thumb flattened along the palmar edge of the palm at the base of the forefinger. The distance between the "X" mark and the tip of the thumb is measured. 

 

CONVENTIONAL ANTHROPOMETRIC MEASUREMENTS


BUTTOCK-KNEE LENGTH

Subject sits erect, feet resting on a surface adjusted so that the knees are flexed to about right angles and thighs horizontal.  Measure the horizontal distance from the rearmost surface of the right buttock to the forward surface of the right kneecap.


SHOULDER (BIDELTOID) BREADTH

Subject sits erect, head in the Frankfort plane, upper arms hanging relaxed, elbows flexed to about 90 degrees, forearms and hands extended forward horizontally.  Measure the horizontal distance between the maximum lateral protrusions of the right and left deltoid muscles. 

SITTING ABDOMINAL DEPTH

Subject sits erect, upper arms hanging relaxed, forearms and hands extended forward horizontally.  Breathing is normal.  Measure the horizontal depth of the abdomen at its greatest above the upper surface of the thighs.

SITTING EYE HEIGHT

Subject sits erect, head in the Frankfort plane, upper arms hanging relaxed, forearms and hands extended forward horizontally.  Measure the vertical distance from the sitting surface to the right external canthus (outer "corner" of eye).

SITTING HEIGHT

Subject sits erect, head in the Frankfort plane, upper arms hanging naturally at sides, elbows flexed to 90 degrees, forearms and hands directed forward.  Measure the vertical distance from the sitting surface to the top of the head. 

SITTING KNEE HEIGHT

Subject sits with feet resting on a surface adjusted so that the thighs are horizontal and the knees are flexed to about 90 degrees.  Measure the vertical distance from the footrest surface to the superior margin of the right knee cap.

SITTING SHOULDER (ACROMION) HEIGHT

Subject sits erect, head in the Frankfort plane, upper arms hanging relaxed at sides, and forearms and hands extended forward horizontally.  Measure the vertical distance from the sitting surface to the right Acromion - the bony landmark at the tip of the shoulder.    

STATURE (STANDING HEIGHT)

Subject stands erect, head in the Frankfort plane, heels together, and weight distributed equally on both feet.  Measure the distance from the floor to the top of the head. 

THIGH CIRCUMFERENCE

Subject stands erect with feet separated by about 15 inches.  Measure the circumference of the right thigh with the tape as high as possible in the crotch.

THUMBTIP REACH

Subject stands erect with heels, buttocks, and back in contact with a wall or other vertical surface.  The right arm is rotated forward to the horizontal, thumb and forefinger tips opposed in a fingertip grasping attitude, thumb extended and parallel to the axis of the arm and forearm.  Measure the distance from the wall to the tip of the thumb.

WEIGHT

Subject is wearing shorts and top as appropriate.


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