Tanita UM-050 instruction manual Features and Functions, Preparations Before USE

UM050/取説 06.2.22 6:09 PM ページ7

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What is Total Body Water Percentage?

Total Body Water Percentage is the total amount of fluid in a person’s body expressed as a percentage of their total weight. Approximately 50 –65% of the weight of a healthy person is water. Water plays a vital role in many of the body’s processes and is found in every cell, tissue and organ. Maintaining a healthy total body water percentage will ensure the body functions efficiently and will reduce the risk of developing associated health problems.

How To Measure Total Body Water?

Deuterium Dilution Method is currently used as a typical method to measure a total body water percentage. This instrument estimates the total body percentage by the analysis (Multiple Regression Analysis) based on the parameter found by the BIA method.

A mutuality over 0.8 is obtained between this instrument and the “deuterium dilution method”.

Note: Deuterium Dilution Method is in terms of total body water based on the analysis of the dilution of orally ingested deuterium oxide in urine.

Healthy Total Body Water Percentage (%TBW)

The average total body water percentage ranges for a healthy adult are:

Female: 45 to 60%

Male : 50 to 65%

Note: The total body water percentage of a person with a high percentage of body fat may fall below the average healthy ranges.

Daily Rhythm of Total Body Water

Try to measure total body water percentage at the same time of day and under the same conditions. This increases the accuracy of the readings. The best time is in the early evening, before the evening meal, when hydration levels are more stable. Total body water percentage tends to be underestimated to a degree if measured immediately after getting out of bed, not only because of dehydration but also because the fluid in the body will be stored centrally in the body’s trunk. As the day progresses this fluid becomes more evenly distributed due to the effect of gravity.

On the contrary, it may be overestimated after exercise or taking a bath because of the movement of body water or a rise in the body temperature despite actual dehydration.

Important Notes

•Take your measurements at the same time of day and under the same conditions.

•Measured results depend on the movement of water in the body and/or changes in body temperature. Factors affecting total body water levels include sleep, physical activity, eating and drinking, illness and medications, bathing patterns and urination.

•Take fluid immediately if you have any symptoms of dehydration, particularly after physical activity or bathing. Symptoms include a dry mouth, headache, nausea, dizziness, skin dryness, a rise in temperature, loss of concentration, etc. If symptoms persist, consult your doctor immediately.

•Elderly people are at increased risk of dehydration as they have less sensitivity to thirst and other rational symptoms.

•This instrument cannot be used to specifically determine an individual’s recommended total body water percentage. Look for the long-term changes in total body water percentage and try to maintain a consistent, healthy total body water percentage.

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FEATURES AND FUNCTIONS

Measuring Platform		1.
1.	Display Screen	3.
		3.
2.	Set Button
3.	Arrow (Select) Buttons	5.
4.	Weight-Only Key / Off Button	2.
5.	Ball-of-Foot Electrodes	4.
6.	Heel Electrodes
		5.
		6.

Accessories	7.
7. AA-Size Batteries (4)

PREPARATIONS BEFORE USE

Inserting the Batteries	Open as shown.
Open the battery cover on the back of the measuring platform. Insert the
supplied AA-batteries as indicated.
Note: Be sure that the polarity of the batteries is set properly. If the batteries are
incorrectly positioned the fluid may leak and damage floors. If you do not intend to use this
unit for a long period of time, it is advisable to remove the batteries before storage.
Please note that the included batteries from factory may have decreased	Direction of the batteries.
energy levels over time.

Positioning the Monitor

Place the measuring platform on a hard, flat surface where there is minimal vibration to ensure safe and accurate measurement.

Note: To avoid possible injury, do not step on the edge of the platform.

Handling Tips

This monitor is a precision instrument utilizing state-of-the-art technology.

To keep the unit in the best condition, follow these instructions carefully:

•Do not attempt to disassemble the measuring platform.

•Store the unit horizontally, and place it so that the buttons will not be pressed accidentally.

•Avoid excessive impact or vibration to the unit.

•Place the unit in an area free from direct sunlight, heating equipment, high humidity, or extreme temperature change.

•Never submerge in water. Use alcohol to clean the electrodes and glass cleaner (applied to a cloth first) to keep them shiny; avoid soaps.

•Do not step on the platform when wet.

•Do not drop any objects onto the platform.

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