Trial reportAnnals of biomedical engineering2026
A Portable, Active Abdominal Compression Binder for Orthostatic Intolerance: Design and Evaluation in Healthy Subjects.
Trial report in Annals of biomedical engineering, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
4 authors.
Funding
Abstract
purposeOrthostatic intolerance is a category of disorders characterized by inadequate hemodynamic compensation upon standing. In this study, we developed a portable, active abdominal compression binder intended for individuals with orthostatic intolerance. We present proof-of-concept evidence in healthy volunteers demonstrating the binder's ability to provide consistent abdominal compression, reduce tachycardic response upon standing, and maintain user comfort.
methodsWe designed and fabricated a novel active binder that applies motor-driven abdominal compression upon the detection of standing. Twenty healthy volunteers (ages 18-50 years) completed three randomized supine-to-standing trials: no binder, a commercial passive binder, and the novel active binder. Throughout each trial, compression pressure, heart rate, and respiration were continuously monitored and comfort was assessed via post-trial Likert-scale survey.
resultsThe active binder achieved a higher mean compression pressure (≈ 11 mmHg) with significantly lower intersubject variability (standard deviation (SD) ≈ 1 mmHg) than the passive binder (mean ≈ 8 mmHg; SD ≈ 3 mmHg). Active compression reduced the standing heart rate by 4.4 bpm compared to control (p < 0.05) vs. a 1 bpm reduction with the passive binder (p > 0.05). Neither the active nor the passive abdominal binders impeded respiration. Survey responses demonstrated that the active binder was at least as comfortable as the passive and was rated easier to don.
conclusionThese findings suggest that active abdominal compression may serve as a more efficacious, consistent, and user-friendly alternative to passive binders for mitigating orthostatic intolerance. CLINICAL TRIAL NUMBER: Not applicable.
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