| IDEEA Overview |
A Device for Analyzing Body Motion
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Mobility is fundamental to human life. In a way, it is life. Like a lightning strike in human existence,
automation and industrialization in a short 50-year period have dramatically reduced the amount
of daily physical activity, and completely changed our lifestyle and work environment.
Changes in physical activity can lead to body imbalance (e.g., energy imbalance) and diseases
such as obesity, cardiovascular dysfunction, and diabetes. The U.S. government health website
has listed physical activity as the leading health
indicator for the Nation in the coming 10 years.
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Quantifying physical activity and its energy cost is the first step toward the solution of
these problems. After 12 years of research work and several hundred-thousand lines of coding,
Dr. Ming Sun and his team introduced the Intelligent Device for
Energy Expenditure and Activity(IDEEA),
a device that for the first time can analyze body motion, measure physical
activity, monitor behavior patterns, and estimate energy expenditure in a free-living
situation on 24-hr basis, with unprecedented power and accuracy.
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Thanks to years of research work, a unique combination of database
and knowledge base has been set up by MiniSun that encompasses the large entries of
the most accurate data for physical activity and energy expenditure measurement. This
unique database enables us to teach the IDEEA in identifying and measuring physical activity and human performance of various types with high intelligence
and accuracy. At present, IDEEA is the only portable device available for
objective and scientific assessment of physical activity and energy expenditure
with high accuracy and activity type identification capability. It provides vast
amount of information regarding the diagnosis and treatment of a variety of
diseases as well as physical performance.
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NIH Comments:
The
design and validation of IDEEA®was awarded a
major grant by NIH (The SBIR grant from NIDDK DK62587) with an
outstanding score, as indicated by a reviewer (Critique) from the Center for Scientific
Review Panel: “A tremendous amount of information can be obtained with a
minimally invasive device using extremely sophisticated technology.”
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The IDEEA has the following major functions:
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Records
and plays back body motion and posture changes on 24-hour basis, stores tens of
millions of data points for future analysis. See
Physical Activity Measurement for example.
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Identifies
40+ types of physical activity, including lying, sitting, walking, climbing
stairs, running, jumping... See
Physical Activity Types for details.
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Provides
accurate recordings of the onset, duration, and frequency of physical activity
and other important events of the day, perform detailed analysis of physical
activity and energy expenditure components into categories and distributions in
any given period of time, from a few seconds to multiple days.
Assessment of physical
activity and behavior types
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Computes
the amount and intensity of physical activity (for example, the speed of walking
or running) using the state-of-art methods/techniques such as artificial
intelligence and neural-network, providing the most accurate results ever
reported for a portable device.
Speed Analysis Example
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Provides both instantaneous and cumulative results of power, amount of mechanical work,
and energy expenditure estimates at any given period, up to multiple days, with
highest possible accuracy in free-living condition. These data are critical for
weight management and obesity treatment, for fitness/wellness training programs,
and for rehabs/functional evaluation.
Energy Expenditure Analysis
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You can download a demonstration of IDEEA Software, which is a powerful and sophisticated program for monitoring
physical activity, measuring energy expenditure, and viewing results obtained by
IDEEA.
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Results
obtained from IDEEA have been calibrated in research labs as well as by a series
of clinical tests using the most advanced equipment, including the floor-sized
precision force platform, and the most accurate whole-room calorimeter (see
publications below). The IDEEA product had been used clinically on hundreds of
patients with thousands of testing hours.
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Zhang K, Werner P, Sun M, Pi-Sunyer FX, Boozer C. “Measurement of Human Daily Physical
Activity.” Obesity Research 11(2003): 33-40.
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Sun, M and JO Hill. "A method for measuring mechanical work and work efficiency
during human activities." Journal of Biomechanics
26(1993):229-241.
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Sun, M, GW Reed, JO Hill. "Modification of a whole-room calorimeter for measurement of
rapid changes in energy expenditure." Journal of Applied Physiology
(1994): 2686-2691.
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"Briefly, IDEEA identifies various physical activities,
a characteristic that no other available scientific testing device is able
to attain. Another unique feature of IDEEA is its ability to provide
information about the duration and frequency of physical activities.
The amount, quality, and accuracy of scientifically useful information
received from IDEEA are astounding. The device computes the amount and
intensity of variety activities with high frequency and precision and allows
reviewing of results almost instantly. These data are the basis for
calculating energy expenditure and its components, which are necessary
elements in asserting short and long-term energy balance in humans.
Having such information will allow scientists and clinicians working in the
area of obesity, to better understand the interrelationship between physical
activity and body weight. This could lead to designing better
weight control programs focusing on physical activity."
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Maciej Buchowski, Ph.D. C.N.S.
Associate Professor of Family and Community Medicine and Pediatrics
Adjunct Associate Professor of Medicine, Vanderbilt University
Director, Nutrition Research and Services, General Clinical Research Center,
Vanderbilt University
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