دورية أكاديمية
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Material properties and application of biomechanical principles provide significant motion control performance in experimental ankle foot orthosis-footwear combination.

التفاصيل البيبلوغرافية
العنوان: Material properties and application of biomechanical principles provide significant motion control performance in experimental ankle foot orthosis-footwear combination.
المؤلفون: Hovorka CF; Department of Rehabilitative Sciences, East Tennessee State University, Johnson City, TN 37614, USA. Electronic address: hovorka@etsu.edu., Kogler GF; Orthotics and Prosthetics Unit, Kennesaw State University, Kennesaw, GA 30144-5591, USA., Chang YH; School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0356, USA., Gregor R; School of Integrated Health Sciences, University of Nevada Las Vegas, Las Vegas, NV 89154, USA.
المصدر: Clinical biomechanics (Bristol, Avon) [Clin Biomech (Bristol, Avon)] 2021 Feb; Vol. 82, pp. 105285. Date of Electronic Publication: 2021 Jan 30.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Elsevier Science Country of Publication: England NLM ID: 8611877 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1271 (Electronic) Linking ISSN: 02680033 NLM ISO Abbreviation: Clin Biomech (Bristol, Avon) Subsets: MEDLINE
أسماء مطبوعة: Publication: 1995- : Oxford : Elsevier Science
Original Publication: Bristol, UK : J. Wright, c1986-
مواضيع طبية MeSH: Ankle*/physiology , Foot Orthoses* , Mechanical Phenomena* , Movement*, Adult ; Biomechanical Phenomena ; Braces ; Female ; Humans ; Male ; Middle Aged ; Range of Motion, Articular
مستخلص: Background: This study, the first of its kind, originated with the need for a brace (an ankle foot orthosis), to constrain ankle plantarflexion and dorsiflexion within a motion threshold of <5°. A conventional thermoplastic, solid brace failed during a quasi-static loading study, informing the investigation and development of an experimental carbon composite brace, maximizing stiffness and proximity of shank and foot cylindrical shells to provide the required degree of control.
Methods: Two experiments were conducted: a quasi-static loading study, using cadaveric limbs (n = 2), and a gait study with healthy subjects (n = 14). Conditions tested were STOP, FREE, and CONTROL. Data for all studies were collected using six motion-capture cameras (Vicon, Oxford, UK; 120 Hz) tracking bone-anchored markers (cadaveric limbs) and skin-anchored markers (subjects). In the quasi-static loading study, loading conditions were congruent with the gait study. Study 1 involved a quasi-static loading analysis using cadaveric limbs, compared motion data from a conventional thermoplastic solid brace and the experimental brace. Study 2 involved quantifying ankle plantarflexion and dorsiflexion in subjects during treadmill walking, in brace STOP, FREE, and CONTROL conditions.
Findings: The experimental brace in STOP condition consistently constrained ankle plantarflexion and dorsiflexion below the motion threshold of <5°, across all studies.
Interpretation: Collectively, these findings demonstrate (1) that a conventional thermoplastic, solid brace was ineffective for clinical applications that required significant motion control, and (2) that ankle motion control is most effective when considered as a relationship between the brace, the ankle-foot complex, and the external forces that affect them both.
(Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
فهرسة مساهمة: Keywords: Ankle foot orthosis; Ankle foot orthosis-footwear combination; Footwear; Motion control; Stiffness; Three force system
تواريخ الأحداث: Date Created: 20210206 Date Completed: 20210610 Latest Revision: 20210610
رمز التحديث: 20231215
DOI: 10.1016/j.clinbiomech.2021.105285
PMID: 33548768
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-1271
DOI:10.1016/j.clinbiomech.2021.105285