Heightened clinical utility of smartphone versus body-worn inertial system for shoulder function B-B score

Pichonnaz, Claude (HESAV School of Health Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland ; Service of Orthopaedics and Traumatology, Department of Musculoskeletal Medicine, University Hospital of Lausanne, Lausanne, Switzerland ; CHUV-UNIL, Lausanne, Switzerland) ; Aminian, Kamiar (Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland) ; Ancey, Céline (HESAV School of Health Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland) ; Jaccard, Hervé (HESAV School of Health Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland ; Service of Orthopaedics and Traumatology, Department of Musculoskeletal Medicine, University Hospital of Lausanne, Lausanne, Switzerland ; CHUV-UNIL, Lausanne, Switzerland) ; Lécureux, Estelle (Direction médicale, CHUV-UNIL, Lausanne, Switzerland) ; Duc, Cyntia (Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland) ; Farron, Alain (Service of Orthopaedics and Traumatology, Department of Musculoskeletal Medicine, University Hospital of Lausanne, Lausanne, Switzerland ; CHUV-UNIL, Lausanne, Switzerland) ; Jolles, Brigitte M. (Service of Orthopaedics and Traumatology, Department of Musculoskeletal Medicine, University Hospital of Lausanne, Lausanne, Switzerland ; CHUV-UNIL, Lausanne, Switzerland) ; Gleeson, Nigel (School of Health Sciences, Queen Margaret University, Edinburgh, Scotland)

Background : The B-B Score is a straightforward kinematic shoulder function score including only two movements (hand to the Back + lift hand as to change a Bulb) that demonstrated sound measurement properties for patients for various shoulder pathologies. However, the B-B Score results using a smartphone or a reference system have not yet been compared. Provided that the measurement properties are comparable, the use of a smartphone would offer substantial practical advantages. This study investigated the concurrent validity of a smartphone and a reference inertial system for the measurement of the kinematic shoulder function B-B Score. Methods : Sixty-five patients with shoulder conditions (with rotator cuff conditions, adhesive capsulitis and proximal humerus fracture) and 20 healthy participants were evaluated using a smartphone and a reference inertial system. Measurements were performed twice, alternating between two evaluators. The B-B Score differences between groups, differences between devices, relationship between devices, intra- and inter-evaluator reproducibility were analysed. Results : The smartphone mean scores (SD) were 94.1 (11.1) for controls and 54.1 (18.3) for patients (P < 0.01). The difference between devices was non-significant for the control (P = 0.16) and the patient group (P = 0.81). The analysis of the relationship between devices showed 0.97 ICC, −0.6 bias and −13.2 to 12.0 limits of agreement (LOA). The smartphone intra-evaluator ICC was 0.92, the bias 1.5 and the LOA −17.4 to 20.3. The smartphone inter-evaluator ICC was 0.92, the bias 1.5 and the LOA −16.9 to 20.0. Conclusions : The B-B Score results measured with a smartphone were comparable to those of an inertial system. While single measurements diverged in some cases, the intra- and inter-evaluator reproducibility was excellent and was equivalent between devices. The B-B score measured with a smartphone is straightforward and as efficient as a reference inertial system measurement.


Article Type:
scientifique
Faculty:
Santé
Branch:
Physiothérapie
School:
HESAV
Institute:
Unité de recherche en santé, HESAV
Date:
2017-03
Pagination:
17 p.
Published in:
PLoS ONE
Numeration (vol. no.):
2017, vol. 12, no. 3, art. e0174365
DOI:
ISSN:
1932-6203
Appears in Collection:



 Record created 2021-07-15, last modified 2021-07-21

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