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US 4,830,021 AGranted
Monitoring system for locomotor activity
OwnerWilliam E. Thorntoninventor
Life of this patent
Estimating the term…
Abstract
A system for monitoring human locomotor activities over long periods of time by recording acceleration (G.sub.z) of the subject during such time periods, and by then converting acceleration to foot/ground forces (F.sub.Z) of the particular subject by a previously calibrated conversion table relating to that particular subject.
Claims13
A system for monitoring human locomotor activity including:
- acceleration measuring means to be mounted on a subject for measuring accelerations of the subject;
- recorder means connected to the accelerometer means for recording data relating to such accelerations;
- a data analyzing unit coupled to said recorder and including storage means;
- sensor means responsive to locomotor activity of the subject for introducing reference ground force data into said data analyzing unit to be stored in said storage means, said data analyzing unit being responsive to the ongoing acceleration data recorded by said recorder for comparing said ongoing acceleration data with said reference ground force data stored in said storage means for converting the ongoing acceleration data into ongoing ground force data representative of the locomotor activity of the subject.
1 more element
In a system for monitoring human locomotor activity, the combination of:
- a data analyzing unit including storage means;
- means coupled to said unit for introducing signals to said unit representing acceleration data of a subject over a prolonged time period;
- and further means coupled to said unit for introducing signals to said unit representing foot/ground force data of the subject over a short time interval to be stored in said storage means for subsequent comparison with said acceleration data signals for converting ongoing acceleration data signals into foot/ground force signals representative of the locomotor activity of the subject.
Dependencies are inferred from the claim text.