This section is from the book "Diseases Of The Stomach", by Max Einhorn. Also available from Amazon: Diseases of the Stomach.
I have applied the term hypanakinesis to a condition in which the mechanical function of the stomach is greatly reduced. If tested with the gastrograph there are found only three or four "breaks" and "makes" of the current marked within three minutes. Sometimes no current changes whatever are observed within the same time. I have noticed this condition several times in gastric ulcer, but twice also in persons in which the diagnosis of gastric ulcer could be exeluded. One of the latter usually complained that he experienced the most disagreeable sensation soon after meals when resting quietly. He felt relieved only when walking about for three-quarters of an hour or an hour after each meal. It may be that the exercise which the patient instinctively resorted to served to supplement the mechanical work of the stomach that was lacking.
In contrast to the above, hyperanakinesis ventriculi denotes a condition of too strong mechanical action of the stomach. The gastrograph shows forty to eighty "breaks" and "makes" of the current within three minutes. This symptom is frequently found to be present in cases of obstruction at the pylorus, but may occur in other conditions. In several of my cases this symptom was associated with hyperchlorhydria.
 
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