![]() Subjects rated the new device superior for refill and comfort, and the traditional method better for accuracy. Mean median (APDF 50%) muscle activity were significantly less for the new device across all three muscles, and posture analysis showed significantly less wrist extension. Outcome measures were evaluated using binomial, Wilcoxin Signed Rank test, and the paired t-test. Muscle activity from three forearm muscles, posture, subjective hand and arm fatigue, and usability of each device were assessed. Subjects (N=17) performed two hours of cake decorating tasks using two different devices. The purpose of this laboratory study was to evaluate forearm muscle activity, discomfort, productivity, and usability of a new device for cake decorating compared to the traditional piping bag method. While reliability of barrier identification was substantial or moderate for some barriers, reconciliation of barrier events identified by multiple video observers is recommended for optimal results.Ĭake decorating involves several hand intensive steps with high grip force during the application of icing. The list is useful for identifying and categorizing accessibility problems found in equipment. ![]() Inter-observer variability for identifying barrier presence was assessed with kappa statistics for pairs of observers.Ī list of 10 access and safety barriers was developed through an iterative consensus process, which identified design features of medical equipment that presented difficulties for participants with disabilities. For each of 11 videotapes, four observers independently identified and documented access and safety barriers, such as physical, sensory, cognitive, and environmental barriers. The researchers reviewed videotapes of patient-participants with various physical and sensory disabilities using different types of medical equipment. The purpose of this study was to develop a method for evaluating accessibility of medical equipment for patients with disabilities.
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