An elegant study was performed by Sikirov
(2003) published in the prestigious
"Digestive diseases and sciences" journal
to identify the best defecation process by
comparing the straining forces and the particular
feeling of the strength of the defecation effort
during normal bowel function in various toilet
systems. Of the sitting positions used; the western
style at a raised height, at a lower position and
the squatting or Indian styled toilet systems.
Subjects were asked to time their defecation
process and note their time needed for the
sensation of defecation till the time of
satisfactory bowel emptying and the effort of
intensity of defecation on the 3 different
positions. The study revealed that the sitting
defecation posture requires more effort compared to
the squatting posture.
The principal cause of
constipation is the result of the
awkward nature of the angle of rectum (bottom) when
defecating in the sitting posture normally used in
western method of defecation. The only or the best
normal defecation position is squatting posture
allowing smooth bowel removal.
Another study showed that the "chronic
traumatic hiatal hernia" also known as the
"gastroesophageal reflux disease"
is the direct cause of not using the common and
worldwide practice of squatting.
Furthermore, the "diverticular disease
of the colon" is a common feature in
several western countries due to the unnecessary
injury caused at defecation process due to
customary clearing of the bowel in a sitting
posture commonly used in the western world.
Humans have evolved into a species following 1.5
million years of standing erect and using the
squatting position for toileting therefore
"squatting" is the most natural
way to go.
Dig Dis Sci. 2003 48:
1201-5
Yale J Biol Med. 1999
72: 69-80
Med Hypotheses. 1989
28: 71-3