One's physical or bodily shape can be classified into the pyknic type, the muscular type and the intermediate type. |
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Instead of the pyknic or compact extreme, Sheldon found a round and soft one. |
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Kretschmer posited three chief constitutional groups: the tall, thin asthenic type, the more muscular athletic type, and the rotund pyknic type. |
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He suggested that the lanky asthenics, and to a lesser degree the athletic types, were more prone to schizophrenia, while the pyknic types were more likely to develop manic-depressive disorders. |
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His work was criticized because his thinner, schizophrenic patients were younger than his pyknic, manic-depressive subjects, so the differences in body type could be explained by differences in age. |
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