Monitoring Functional Capability of Individuals with Lower Limb Amputations Using Mobile Phones

Mark V. Albert, Cliodhna McCarthy, Juliana Valentin, Megan Herrmann, Konrad Kording, Arun Jayaraman

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


To be effective, a prescribed prosthetic device must match the functional requirements and capabilities of each patient. These capabilities are usually assessed by a clinician and reported by the Medicare K-level designation of mobility. However, it is not clear how the K-level designation objectively relates to the use of prostheses outside of a clinical environment. Here, we quantify participant activity using mobile phones and relate activity measured during real world activity to the assigned K-levels. We observe a correlation between K-level and the proportion of moderate to high activity over the course of a week. This relationship suggests that accelerometry-based technologies such as mobile phones can be used to evaluate real world activity for mobility assessment. Quantifying everyday activity promises to improve assessment of real world prosthesis use, leading to a better matching of prostheses to individuals and enabling better evaluations of future prosthetic devices.

Original languageEnglish (US)
Article numbere65340
JournalPloS one
Issue number6
StatePublished - Jun 4 2013

ASJC Scopus subject areas

  • General


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