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G. Naganuma, MS, is Staff Physical Therapist, Boyer Children's Clinic, 1850 Boyer Ave E, Seattle, WA 98112 (USA). She was a graduate student, Department of Rehabilitation Medicine, The University of Washington, Seattle, WA, when this study was conducted.
F. Billingsley, PhD, is Professor, Area of Special Education, The University of Washington, WJ-10, Seattle, WA 98195.
The purpose of this multiple baseline study was to examine the effect of bilateral hand splints on the persistent stereotypic hand movements of three adolescent girls with Rett syndrome. Among the most characteristic features of Rett syndrome are stereotypic hand-wringing and hand-biting behavior and loss of previously acquired functional hand skills. The hand splints used in this study consisted of cuffs encircling the palm that positioned the subjects' thumbs in abduction. Duration percentages of subjects' stereotypic hand behavior and functional hand use were calculated from five-minute videotaped segments recorded during a finger-feeding condition and a free-time condition. All three subjects demonstrated a decrease in the amount of time spent in stereotypic hand behavior after application of hand splints, and one subject showed an increase in finger-feeding skills while wearing hand splints. Limitations of the study are discussed, and suggestions for clinical application and future research are offered.
Key Words: Hand Medical conditions Orthotics/splints/casts, upper extremity Stereotyped behavior
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Physical Therapy 1989 69: 1099-1103.
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