Multiple published studies have proven manual muscle testing to provide consistent, reliable results, both
across multiple tests by single tester, and across multiple testers. The keys to achieving valid results are proper
patient and device positioning, and consistency of the testing methodology used.
Several noted clinicians and researchers have attempted to document muscle testing norms for specific patient
populations. For example, see:
Bohannon, Richard W: Reference Values for Extremity Muscle Strength
Obtained by Hand Held Dynamometry from Adults aged 20 to 79 Years.
Arch Phys Med Rehabil, Vol.
78, January 1997).
The general conclusion from these studies is that norms for healthy adult populations can
be determined, within broad ranges, with gender, age, and weight being the strongest predictors of muscle
strength. It is important to note, however, that norms are provided with fairly wide standard deviations. Only
individuals whose muscle strength falls more than two standard deviations below the norm can conclusively be
considered 'impaired'.
However, these conclusions cannot be extended beyond the youngest or oldest ranges of the adult populations
tested. For example, research conducted on grade school children determined that developmental differences
between individual children were much bigger factor in determining muscle strength than were age or size.
The most relevant norm for Muscle Testing measures is the patient himself; through his/her identification of
change from what has been his personal norm, left/right comparisons, and progress tracking over time.
For best results, when using the microFET3, be sure to install the proper attachment for the area of the body
being tested: flat round pad for flat, larger surfaces, curved pad for rounded surfaces, and digit pad for fingers
and toes. Check to ensure that the unit is properly positioned for maximum surface area contact and direct force
application.
The microFET3 is ambidextrous. It can be held in either the left or right hand, or you may switch hands
from test to test, depending on stabilization requirements.
For information on positions and manual muscle testing for main muscle groups, refer to the Manual
Muscle Testing Positions Wall Chart included with your microFET3. For additional clarification or how to
test for additional muscle test positions, refer to manuals such as Daniels and Worthingham
.
Inclinometer Testing
An Inclinometer is a device that measures a static angle in relationship to the horizontal or vertical, or in
relationship to a determined zero starting point. The MIRCOFET3 Inclinometer is a gauge that uses a sensor to
accurately measure to within 1 degrees. When the inclinometer is moved, the sensor will settle to a stable
position in 0.1 seconds which means you can click the button to mark the angle as soon as the patient stops
moving. This feature makes the measurement process more comfortable for the patient because they do not
have to remain in an uncomfortable posture for any significant amount of time. Single inclinometers provide a
simple and accurate method of measuring range of motion. One hand holds the inclinometer and the other hand
is free to either stabilize or assist the patient through the range of motion.
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Summary of Contents for microFET3
Page 1: ...microFET3 User Guide...
