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There is an urgent need for better techniques to assess
physical activity (PA) in free-living populations. No existing
method can accurately reflect duration, frequency, type and
intensity of daily PA, which are crucial for the study of PA.
Intelligent Device for Energy Expenditure and Activity (IDEEA®-
a portable gait analysis system )
(MiniSun, Fresno, CA), a microcomputer-based measurement system,
was developed to meet those needs. This small system enables
recording of processed free-living data and other vital
information with high reliability over 24-hour. More than 40 types of PA,
including type, duration, frequency, and intensity have been
evaluated. The table shows more than 99.3% of gaits were
correctly counted and more than 99.18% of gaits were correctly
classified. The error of walking and running speed prediction is
0.0036 ± 0.3708 mph and the correlation between predicted speed
and actual speed is 0.9869. |
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| This device makes possible for the first time the
quantitative study of daily PA with high accuracy. In addition,
it can estimate the amount of mechanical work and related energy
expenditure for 24-hour or longer, allowing study of
relationships between PA and energy balance. Results from such
studies can provide the basis for evaluation of the
effectiveness of public health strategies used to promote PA for
the prevention and treatment of obesity. |
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Information…… |
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Product ->
Posture and Activity Analyzer 
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