title: Across-subject calibration of an instrumented glove to measure hand movement for clinical purposes.
abstract: Motion capture of all degrees of freedom of the hand collected during performance of daily living activities remains challenging. Instrumented gloves are an attractive option because of their higher ease of use. However, subject-specific calibration of gloves is lengthy and has limitations for individuals with disabilities. Here, a calibration procedure is presented, consisting in the recording of just a simple hand position so as to allow capture of the kinematics of 16 hand joints during daily life activities even in case of severe injured hands. 'across-subject gains' were obtained by averaging the gains obtained from a detailed subject-specific calibration involving 44 registrations that was repeated three times on multiple days to 6 subjects. In additional 4 subjects, joint angles that resulted from applying the 'across-subject calibration' or the subject-specific calibration were compared. Global errors associated with the 'across-subject calibration' relative to the detailed, subject-specific protocol were small (bias: 0.49°; precision: 4.45°) and comparable to those that resulted from repeating the detailed protocol with the same subject on multiple days (0.36°; 3.50°). Furthermore, in one subject, performance of the 'across-subject calibration' was directly compared to another fast calibration method, expressed relative to a videogrammetric protocol as a gold-standard, yielding better results.
authors.affiliation: a Department of Mechanical Engineering and Construction , Universitat Jaume I, Castelló , Spain.
authors.forename: Verónica
authors.initials: V
authors.lastname: Gracia-Ibáñez
authors.affiliation: a Department of Mechanical Engineering and Construction , Universitat Jaume I, Castelló , Spain.
authors.forename: Margarita
authors.initials: M
authors.lastname: Vergara
authors.affiliation: b Department of Biomedical Engineering , Physical Medicine and Rehabilitation, and Physical Therapy and Human Movement Sciences, Northwestern University , Chicago , IL , USA.|c Sensory Motor Performance Program , Rehabilitation Institute of Chicago , Chicago , IL , USA.
authors.forename: James H
authors.initials: JH
authors.lastname: Buffi
authors.affiliation: b Department of Biomedical Engineering , Physical Medicine and Rehabilitation, and Physical Therapy and Human Movement Sciences, Northwestern University , Chicago , IL , USA.|c Sensory Motor Performance Program , Rehabilitation Institute of Chicago , Chicago , IL , USA.|d Research Service , Edward Hines, Jr. VA Hospital , Hines , IL , USA.
authors.forename: Wendy M
authors.initials: WM
authors.lastname: Murray
authors.affiliation: a Department of Mechanical Engineering and Construction , Universitat Jaume I, Castelló , Spain.
authors.forename: Joaquín L
authors.initials: JL
authors.lastname: Sancho-Bru
mesh_terms: D001696:Biomechanical Phenomena; D002138:Calibration; D005260:Female; D017575:Gloves, Protective; D006225:Hand / Q000033:anatomy & histology / Q000502:physiology*; D050823:Hand Joints; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D016059:Range of Motion, Articular
keywords: Instrumented glove; across-subject calibration; fast calibration; hand disabilities; hand movement