optimal urinating position in function of urinar tract ... · [email protected] anthropological...

International Journal of Basic & Applied Sciences IJBAS-IJENS Vol:12 No:04 20

120504-6767-IJBAS-IJENS © August 2012 IJENS I J E N S

Optimal Urinating Position in Function of Urinar Tract Deseases

Professor. Dr. Fikret Veljovic

Abstract-- We analyzed three urinary positions (standing, seating and squatting) through mathematical model and real condition of tested subjects, and concluded that male subjects has the biggest bladder discharge in squatting position. With new recommended habits for bladder discharge, the number of urinary tract infections is decreased. Idex Term-- biomechanics, ergonomics, bladder anatomy, urinary tract infections, intraabdominal pressure. INTRODUCTION This problem is very little or only symbolically explored up to these days. That is the reason why this work is pioneering engagement to make different analyses and experimental researches, with task to find answer on our topic. Our experimental research was conducted at Clinical Center Sarajevo, and data analyses with creation of mathematical models at Mechanical Faculty Sarajevo. PROBLEM DESCRIPTION Through many years of analyzing diseases with urinary tract infections at male population, it is determined that they are increasing. That was the cause to conduct this research. We wanted to confirm that thesis and additionally to find an answer on question: what is optimal position for male urinating in function of diseases with urinary tract infections. RESEARCH METHODS Through various tests we chose to observe one group of subjects, male population. Research is conducted in cycles of three periods with ten days for each position. Groups were consisting of ten male persons.

Professor. Dr. Fikret Veljovic Mechanical Faculty Sarajevo

[email protected]

Anthropological values were approximately the same for every group (height, weight, age, personal health conditions, motivation), what were confirmed with adequate tests. Work load for each subject during research were the same. Also, nutrition factors were the same, with addition that they had to drink two and half liters of water every day. Research was conducted for three urinating positions (standing, seating and squatting) and we measured quantity of excreted urine in function of those three positions. For every urinating position, urine was collected in a special container. Every day measurements were conducted and kept precise records of excreted urine for all our subjects. Based on all stated above, for the all groups, at the end we had average quantity of excreted urine from bladders for all three positions. Natural urinating position for male subject is standing. With these experiments we found that the smallest quantity of excreted urine is for standing position, and the biggest quantity of excreted urine is for squatting position. If we observe intraabdominal pressure, through mathematical model, for all three positions, we can calculate that the biggest pressure is for the squatting position. That gives us the conclusion that with increased intraabdominal pressure on bladder, excretion of urine is increased. With increased excretion of urine, theoretically, diseases with urinary tract infections are decreased.



1,3

1,35

1,4

1,45

1,5

1,55

1,6

1,65

1,7

1,75

1 2 3 4 5 6 7 8 9 10

Muškarci - Sjedećipoložaj

Prosječno

Male – Standing Position (Position 1)

Days Urine discharge

1 1,1

2 1,2

3 1,1

4 1,4

5 1,3

6 1,2

7 1

8 1,4

9 1,25

10 1,35

Average 1,23

With software Catia we calculated torque on L4-L5 vertebras. To get real intraabdominal pressure we used formula:

Pabd=IAT=0,079*ML-1,127 (kPa)

Pabd= 0,079*ML-1,127=0,079*2-1,127= -0,969 (kPa)

Male – Seating Position (Position 2)


1 1,5

2 1,6

3 1,55

4 1,65

5 1,7

6 1,45

7 1,65

8 1,7

9 1,55

10 1,7

Average 1,605


0

0,2

0,4

0,6

0,8

1

1,2

1,4

1,6

1 2 3 4 5 6 7 8 9 10

Muškarci - Uspravanpoložaj

Prosječno



1,55

1,6

1,65

1,7

1,75

1,8

1,85

1 2 3 4 5 6 7 8 9 10

Muškarci - Čučećipoložaj

Prosječno


Pabd= 0,079*ML-1,127=0,079*12-1,127= -0,1

Male – Squatting Position (Position 3)


1 1,7

2 1,8

3 1,75

4 1,75

5 1,7

6 1,65

7 1,8

8 1,75

9 1,75

10 1,8

Average 1,745

Average=1,745455 1745



Pabd= 0,079*ML-1,127=0,079*27-1,127= 1,006 (kPa)

DIAGRAM OF INTRAABDOMINAL PRESSURE FOR 3 POSITION

S

Intraabdominalni pritisak kod muškarca

-1,5

-1

-0,5

0

0,5

1

1,5

1 2 3

Intraabdominalni pr itisakkod muškarca



.

NUMBER OF PATIENTS WITH URINARY TRACT INFECTIONS PER 10.000 INHABITANTS

Year Number Percent

2001 520 5,20%

2002 560 5,60%

2003 620 6,20%

2004 640 6,40%

2005 675 6,75%

2006 699 6,99%

2007 715 7,15%

2008 728 7,28%

2009 754 7,54%

2010 775 7,75%

Average 669 6,69%

After we finished research and analyses, we recommended to all patients to urinate in squatting position.

With recommendation for males to urinate in squatting position, number of urinary tract infections decreased on 2,5 % in last two years.

Year Number Percent

2010 241 2,41%

2011 259 2,59%

Average 250 2,50%

If we look at previous table, where we have average percent of diseased for male population of 6,69 % and after we recommended to our patients to urinate in squatting position, urinary tract infections decreased on average percent of 2,5 %. It means that on 10.000 inhabitants we have 419 people less with these diseases.

This data are from Clinical Center Sarajevo for male persons which complied with recommendations (which urinated in squatting position).

CONCLUSIONS Male population should urinate in squatting position, because of above stated reasons.

LITERATURE

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Intraabdominalni pritisak kod žena

-1,2

-1

-0,8

-0,6

-0,4

-0,2

0

0,2

0,4

0,6

1 2 3Intraabdominalni pritisakkod žena

0,00%

1,00%

2,00%

3,00%

4,00%

5,00%

6,00%

7,00%

8,00%

9,00%

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Broj oboljelihmuškaraca

Prosjek



11. Muftić O., Labar, J. (1990) Modelling of the Head and Cervical Spine in Biomechanical Analysis. Coll. Antropol; 14:123-32.

12. Muftić O., Labar, J. (1989) The Compact Formulation of Dynamic Anthropomeasures. Strojarstvo; 31:207.14.

13. Osterbauer P.J., Ribaudo T.A., et al: Three-Dimensional Head Kinematics and Cervical Range of Motion in Diagnosis of Patients with Neck Trauma, J Manipulative Physiol Ther 1996; 19;231-237.

14. Woltring H.J. Long K., et coll. Instanteneous Helical Estimation From 3-D Video Data in Neck Kinematics for Whiplash Diagnostics, J.Biomechanics 1994; 27:1415-32.

optimal urinating position in function of urinar tract ... · [email protected] anthropological...

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