Gender differences in proximal esophageal contractions
نویسندگان
چکیده
منابع مشابه
Gender differences in proximal esophageal contractions.
CONTEXT There are reports showing that gender has an influence on swallowing and on the contractions of the distal esophageal body. OBJECTIVE In this investigation we studied the effect of gender on proximal esophageal contraction. METHODS We studied 20 men (22-68 years old, median 39 years) and 44 women (18-61 years old, median 41 years) without symptoms and without gastrointestinal or res...
متن کاملProximal and distal esophageal contractions have similar manometric features.
The human esophagus is composed of striated muscle proximally and of smooth muscle distally with a transition zone between the two. Striated muscle contracts much faster than smooth muscle. The change in pressure over time (dP/d t) of the contraction amplitude should therefore be higher in proximal than in distal esophagus, reflecting the presence of striated muscle proximally. There were 34 no...
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BACKGROUND Some patients with achalasia have distal esophageal contraction amplitude in the normal range, a condition called vigorous achalasia, and others have low contraction amplitude, a condition named classic achalasia. The difference in distal contraction amplitude may also be associated with a difference in proximal contraction amplitude. AIM To study the proximal and distal esophageal...
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Muscle fatigue has been defined as “any reduction in the force generating capacity of the total neuromuscular system regardless of the force required in any given situation” (Bigland-Ritchie and Woods, 1984). A reliable muscle fatigue measure has subtly emerged during maximal effort isokinetic contractions that has been able to highlight gender differences in quadriceps and hamstring torque gen...
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In this article, we introduce a new class of non-self mappings, called weak proximal contractions, which contains the proximal contractions as a subclass. Existence and uniqueness results of a best proximity point for weak proximal contractions are obtained. Also, we provide sufficient conditions for the existence of common best proximity points for two non-self mappings in metric spaces having...
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ژورنال
عنوان ژورنال: Arquivos de Gastroenterologia
سال: 2009
ISSN: 0004-2803
DOI: 10.1590/s0004-28032009000400007