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Visualisation of upper limb activity using spirals : A new approach to the assessment of daily prosthesis usage

CHADWELL A; KENNEY L; GRANAT M; THIES S; HEAD J; GALPIN A
PROSTHET ORTHOT INT , 2018, vol. 42, n° 1, p. 37-44
Doc n°: 187055
Localisation : Documentation IRR

D.O.I. : http://dx.doi.org/DOI:10.1177/0309364617706751
Descripteurs : EC154 - PROTHESE FONCTIONNELLE / MEMBRE SUPERIEUR

Current outcome measures used in upper limb myoelectric prosthesis
studies include clinical tests of function and self-report questionnaires on
real-world prosthesis use. Research in other cohorts has questioned both the
validity of self-report as an activity assessment tool and the relationship
between clinical functionality and real-world upper limb activity. Previously,(1)
we reported the first results of monitoring upper limb prosthesis use. However,
the data visualisation technique used was limited in scope. STUDY DESIGN:
Methodology development. OBJECTIVES: To introduce two new methods for the
analysis and display of upper limb activity monitoring data and to demonstrate
the potential value of the approach with example real-world data. METHODS: Upper
limb activity monitors, worn on each wrist, recorded data on two anatomically
intact participants and two prosthesis users over 1 week. Participants also
filled in a diary to record upper limb activity. Data visualisation was carried
out using histograms, and Archimedean spirals to illustrate temporal patterns of
upper limb activity. RESULTS: Anatomically intact participants' activity was
largely bilateral in nature, interspersed with frequent bursts of unilateral
activity of each arm. At times when the prosthesis was worn prosthesis users
showed very little unilateral use of the prosthesis ( approximately 20-40
min/week compared to approximately 350 min/week unilateral activity on each arm
for anatomically intact participants), with consistent bias towards the intact
arm throughout. The Archimedean spiral plots illustrated participant-specific
patterns of non-use in prosthesis users. CONCLUSION: The data visualisation
techniques allow detailed and objective assessment of temporal patterns in the
upper limb activity of prosthesis users. Clinical relevance Activity monitoring
offers an objective method for the assessment of upper limb prosthesis users'
(PUs) activity outside of the clinic. By plotting data using Archimedean spirals,
it is possible to visualise, in detail, the temporal patterns of upper limb
activity. Further work is needed to explore the relationship between traditional
functional outcome measures and real-world prosthesis activity.

Langue : ANGLAIS

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