Abstract
The correlations between stature and lengths of various parts of the human body were examined in order to make clear the changes in the range of action at a kitchen sink as the correlation varies. Such data seem to be of great importance to making sinks which are suited for the users. In the study 251 persons participated.
The results are as follows :
1. Correlations are observed between stature and other measures such as acromion height, olecranon height, forearm-hand length, length of upper extremity, and middle fingertip height but they are not observed between stature and hand length and stature and shoulder-elbow length. Correlations between acromion height and olecranon height and acromion height and length of upper extremity are larger than those between stature and olecranon height and stature and length of upper extremity. There is correlation between olecranon height and middle fingertip height.
2. Regardless of the difference in stature, the ratio of the length of each part of the body to stature is nearly fixed. Therefore, this constancy should be appropriate for a clue to universalizing the sink height problems without regard to the difference in stature.
3. The measurement of each part of the body varies in accordance with stature. The variation rate is directly proportional to the numerical value of the measurement. For instance, the difference in the middle fingertip heights is as small as about 43% of the difference in stature.
4. The standard ratio of the height of the hands working at the sink to stature is about 50 to 55%. At this height the difference in the height of hands is about 58 to 64% of the difference in stature.
