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Table 1 The pressure in the lower esophageal sphincter at rest and on straining+.

From: Effect of straining on diaphragmatic crura with identification of the straining-crural reflex. The "reflex theory" in gastroesophageal competence

 

Pressure (cm H2O)

 

Mean

Range

Basal

25.4 ± 6.3

17 – 32

Sudden straining

96.6 ± 10.8 *

72 – 124

Sustained straining

82.6 ± 8.3 *

58 – 97

  1. + values were given as the mean ± standard deviation
  2. * p < 0.01
  3. P values were compared to the basal value.
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BMC Gastroenterology

ISSN: 1471-230X

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