Evaluation of different pressure-based foot contact event detection algorithms across different slopes and speeds

dc.contributor.authorBlades, Samuel
dc.contributor.authorMarriot, Hunter
dc.contributor.authorHundza, Sandra
dc.contributor.authorHonert, Eric C.
dc.contributor.authorStellingwerff, Trent
dc.contributor.authorKlimstra, Marc
dc.date.accessioned2024-02-06T18:23:32Z
dc.date.available2024-02-06T18:23:32Z
dc.date.copyright2023en_US
dc.date.issued2023
dc.description.abstractIf validated, in-shoe pressure measuring technology allows for the field-based quantification of running gait, including kinematic and kinetic measures. Different algorithmic methods have been proposed to determine foot contact events from in-shoe pressure insole systems, however, these methods have not been evaluated for accuracy, reliability against a gold standard using running data across different slopes, and speeds. Using data from a plantar pressure measurement system, seven different foot contact event detection algorithms based on pressure signals (pressure sum) were compared to vertical ground reaction force data collected from a force instrumented treadmill. Subjects ran on level ground at 2.6, 3.0, 3.4, and 3.8 m/s, six degrees (10.5%) inclined at 2.6, 2.8, and 3.0 m/s, and six degrees declined at 2.6, 2.8, 3.0, and 3.4 m/s. The best performing foot contact event detection algorithm showed maximal mean absolute errors of only 1.0 ms and 5.2 ms for foot contact and foot off, respectively, on level grade, when compared to a 40 N ascending and descending force threshold from the force treadmill data. Additionally, this algorithm was unaffected by grade and had similar levels of errors across all grades.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThis research was funded by Mitacs Accelerate, grant number IT22826.en_US
dc.identifier.citationBlades, S., Marriott, H., Hundza, S., Honert, E. C., Stellingwerff, T., & Klimstra, M. (2023). Evaluation of different pressure-based foot contact event detection algorithms across different slopes and speeds. Sensors, 23(5), 2736. https://doi.org/10.3390/s23052736en_US
dc.identifier.urihttps://doi.org/10.3390/s23052736
dc.identifier.urihttp://hdl.handle.net/1828/15948
dc.language.isoenen_US
dc.publisherSensorsen_US
dc.subjectrunning
dc.subjectgait analysis
dc.subjectpressure
dc.subjectevent detection
dc.subjectalgorithms
dc.subjectwearable technology
dc.subjectsmart insoles
dc.subject.departmentSchool of Exercise Science, Physical and Health Education
dc.titleEvaluation of different pressure-based foot contact event detection algorithms across different slopes and speedsen_US
dc.typeArticleen_US

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