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Document Description
Title
The
influence
of
human
core
temperature
on
minute
ventilation
Author
Sancheti
,
Ajay
,
1977-
Description
Thesis
(M.P.E.)--Memorial
University
of
Newfoundland
,
2002.
Human
Kinetics
and
Recreation
Date
2002
Pagination
1 v. (various foliations) : ill.
Subject
Body
temperature;
Respiration
Degree
M.P.E.
Degree Grantor
Memorial University of Newfoundland. School of Human Kinetics and Recreation
Discipline
Human Kinetics and Recreation
Language
eng
Notes
Includes
bibliographical
references
Abstract
Body
temperature
is
known
to
affect
human
ventilation
(Vg)
,
yet
the
nature
and
mechanisms
of this
relationship
are not
resolved.
The
first
study
in this
thesis
explores
how
exercise-induced
increases
in
body
temperature
affects
ventilatory
components
,
namely
tidal
volume
(Vt)
and
frequency
of
respiration
(f)
, and if these
relationships
are
reproducible.
Expressed
as a
function
of
esophageal
temperature
(Tes)
in
seven
adult
males
during
incremental
exercise
to
maximum
,
ventilation
and its
components
were
reproducible
using
intraclass
correlation
coefficients
,
0
,
84
<
R
<
0.93
(p<0.05).
Since
the
relationships
between
ventilation
variables
and
Tes
were
reproducible
, a
second
study
examined
whether
the
mechanism
of this
effect
could
be
mediated
by an
increased
ventilatory
sensitivity
to
C02-
Central
sensitivity
to
C02
was
assessed
using
a
modified
Read
rebreathing
protocol
before
and
after
exercise
induced
warming
in
6
male
subjects.
The
slope
and
threshold
point
of
ventilation
expressed
as a
function
of
end
tidal
carbon
dioxide
were
increased
and
decreased
respectively
,
indicating
an
increased
to
sensitivity
to
C02
after
body
warming.
In
conclusion
, the
results
support
core
temperature
influence
on
human
ventilation
in a
reproducible
manner
and that the
effect
of
ventilation
may
be
partially
mediated
by an
increased
central
sensitivity
to
carbon
dioxide.
Type
Text
Resource Type
Electronic
thesis
or
dissertation
Format
Image/jpeg;
Application/pdf
Source
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier
a1591225
Rights
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection
Electronic
Theses
and
Dissertations
Scanning Status
Completed
PDF File
(14.87
MB)
--
http://collections.mun.ca/PDFs/theses/Sancheti_Ajay.pdf
CONTENTdm file name
165281.cpd
