Where in Winnipeg do they offer hydrostatic weighing?
weighing is quite inaccurate as well as cumbersome and as
such is not widely available anymore. Many research centers
in North America have dismantled their hydrostatic weighing
don't believe hydrostatic weighing is available in Winnipeg
anymore; the University of Manitoba no longer offers this
service and I believe they may have been one of the last Universities
to dismantle their tank.
more reliable body fat testing method is electrical impedance.
A minor electrical current is passed through the body, typically
through both feet (standing on an electrostatic scale) or
from toe to finger tip or ear lobe while seated or lying.
and fat are of different densities thus effecting the speed
at which current flows through them. The electrical impedance
device measures the time it takes for the current to travel
between electrodes as well as considering variables such as
age, sex, weight, and exercise activity level that are entered
into the device.
impedance body fat testing is not without its problems. How
much food is in your digestive system, and how hydrated you
are effects accuracy. To control for this, some manufacturers
of bioelectrical impedance scales suggest you use the scale
several times over one or two weeks to establish an average
body fat estimate. For females a four to six week period is
required to consider changes occurring with the menstrual
my personal use with a high end electrical impedance scale,
there is variance between morning (higher percentage) and
evening (lower percentage) measurements. This variance needs
to be ignored with only significant changes in long term trends
electrical impedance as well as all other body fat estimating
methods have a degree of error, some greater than others,
and with consumer body fat estimating products generally being
less accurate than medical or clinical versions of the same
body fat testing is not very useful as there is no practical
outcome of knowing your body fat percentage, especially since
any number you get will be from an indirect measurement and
will be an estimate only.
track change in your body fat it is much simpler to measure
your waist girth.
your waist increases you are gaining fat.
If your waist decreases you are losing fat.
will know you are lean or overweight by visual observation;
it is redundant to measure your body fat percentage.
scale alone is not a reliable method of tracking fat loss
or gain, or muscle loss or gain.
a scale in combination with measuring waist girth is a reliable
method of tracking fat loss/ gain. If your weight changes
but your waist does not, it is most likely that no significant
fat loss or gain has occurred. If your weight reduces AND
waist girth decreases, you are losing fat.
you lose more than 2 pounds in one week, you are most likely
losing water and possibly muscle mass as well as some fat
mass. Since losing water and muscle mass is undesirable, it
is best to lose fat slowly over many months rather than risking
dehydration and loss of lean muscle mass through rapid
don't test body fat percentage on any of my champion athletes
unless they absolutely insist out of plain interest. Knowing
an athletes body fat percentage is of no use to me as a coach,
I can tell if an athlete is over or underweight (body fat)
by visual observation - an estimated body fat percentage is
not required to verify the initial visual observation as it
is apparent. However, tracking change through measurement
is necessary. I have found the waist girth measurement and
at times skin fold measurements to be a simple and reliable
method of tracking change in body fat.
I view estimating body fat percentage as a diversion from
paying attention to more meaningful variables such as waist
girth, calories consumed and measuring exercise intensity
via heart rate and blood lactate.