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World J Mens Health. 2017 Aug;35(2):100-106. doi: 10.5534/wjmh.2017.35.2.100.

Evaluation of Impact of Voiding Posture on Uroflowmetry Parameters in Men.

Author information

1
Department of Urology, King George's Medical University, Lucknow, India.
2
Department of Urology, King George's Medical University, Lucknow, India. drashokkumarsokhal@gmail.com.

Abstract

PURPOSE:

To evaluate the impact of voiding position on uroflowmetry parameters and to assess its potential clinical implications.

MATERIALS AND METHODS:

We conducted a prospective study from 2013 to 2015 and included men between 18 and 77 years old who were either healthy volunteers with an International Prostate Symptom Score (IPSS) ≤7 or men with benign prostate enlargement that were on alpha-blocker medication and had an IPSS <10. Participants underwent uroflowmetry and post-void residual urine (PVRU) measurements twice, once in a sitting position and once in a standing position. The participants were divided into 4 groups based on age (35 years or younger, 36 to 50 years, 51 to 60 years, and older than 60 years).

RESULTS:

A total of 740 men with a mean age of 40.35 years were evaluated. There was no significant difference in uroflowmetry parameters until the age of 50 years between the voiding positions. However, in those older than 50 years, PVRU volume was significantly lower in the sitting position than the standing position, whereas voiding time was significantly higher in the sitting position than the standing position. Other uroflowmetry parameters, including maximal and average urine flow rates, were non-significant.

CONCLUSIONS:

The voiding position plays an important role in the uroflowmetry parameters of elderly men. Voiding in the sitting position was found to be optimal for elderly men, whereas the role of the voiding position in healthy young men could not be determined. More research is needed to further study this issue.

KEYWORDS:

Flowmeter; Lower urinary tract symptoms; Posture; Prostate; Prostatic hyperplasia

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