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BioAnalysis Software for Gait, Balance and Power |
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As trials are run and data is gathered and stored with the NetForce software entries are made in a trial database to
track the subject and trial information.
When it is time for analysis the BioAnalysis
program accesses the subject database and the desired trials may be selected
for viewing, plotting and analysis. BioAnalysis provides a flexible plot layout scheme for viewing and printing
gait and balance reports. Multiple
plots may be arranged on a page and multiple data sources may be overlaid on each
plot. Once you have arranged the page
or report to your satisfaction it may be saved as a template for subsequent
reports. BioAnalysis also provides a statistical analysis package which allows you
to calculate averages and standard deviations over a range of selected trials
for a large array of calculated gait, balance and power parameters. The statistical results may be printed or
exported to text files for further analysis in third party spread sheet or
analysis software. BioAnalysis provides three comprehensive analysis modules: |
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The Gait
Module allows you to identify and mark features on the ground reaction force
signals such as heal strike, toe off, maximum deceleration, mid-stance and maximum
acceleration. The module provides both
stride (from heal strike to toe off) and body weight normalization for intra
subject comparison. Gait
plots include both normalized and non-normalized versions of force (Fx, Fy, Fz,
Mx, My, Mz) vs. time
plots, center of pressure (COP) and ground reaction torque plots. The gait module provides comprehensive algorithms
to calculate many the useful gait parameters such as: acceleration and deceleration
values, impulse values, stance times and intervals, and maxima and minima for
many of the measured values. Aggregate
statistics may be calculated for selected series of trials (as selected from
the trial database) which may be printed or exported to file. The Balance
Module provides a suite of plotting and analytical tools for balance
analysis. This module supports COP
(center of pressure) plots, the 95th percentile ellipse plot, X
and Y FFTs, radius vs. time, area vs. time, and Fx and Fy vs. time plots. The Balance Module also provides algorithms
to calculate many balance related variables such as the X and Y COP means,
standard deviations, path length, radial measures and balance parameters. The
Power Module is useful for weight lifting and various athletic endeavors in
which it is desirable to determine the energy expended over time for the
particular exercise. The Power Module implements
a standard double integration algorithm acting on the reaction force to calculate
acceleration, velocity, and displacement over time. By inputting the mass of the system being
accelerated (weights, body weight etc.) the power and energy of the exercise is
determined.
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