Dataset Information

Adjustable sockets may improve residual limb fluid volume retention in transtibial prosthesis users.

ABSTRACT: BACKGROUND:Loss of residual limb volume degrades socket fit and may require accommodation. OBJECTIVES:To examine if either of two accommodation strategies executed during resting, socket release with full socket size return and socket release with partial socket size return, enhanced limb fluid volume retention during subsequent activity. STUDY DESIGN:Two repeated-measures experiments were conducted to assess the effects of socket release on limb fluid volume retention. METHODS:Limb fluid volume was monitored while participants wore a socket with a single adjustable panel. Participants performed eight activity cycles that each included 10?min of sitting and 2?min of walking. The socket's posterior panel and pin lock were released during the fifth cycle while participants were sitting. In one experiment (Full Return), the socket was returned to its pre-release size; in a second experiment (Partial Return), it was returned to 102% of its pre-release size. Short-term and long-term limb fluid volume retention were calculated and compared to a projected, No Intervention condition. RESULTS:Partial Return and Full Return short-term retentions and Partial Return long-term retention were greater than those projected under the control condition ( p?

SUBMITTER: Brzostowski JT

PROVIDER: S-EPMC7447526 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Adjustable sockets may improve residual limb fluid volume retention in transtibial prosthesis users.

Brzostowski Jacob T JT Larsen Brian G BG Youngblood Robert T RT Ciol Marcia A MA Hafner Brian J BJ Gurrey Clement J CJ McLean Jake B JB Allyn Katheryn J KJ Sanders Joan E JE

Prosthetics and orthotics international 20190110 3

<h4>Background</h4>Loss of residual limb volume degrades socket fit and may require accommodation.<h4>Objectives</h4>To examine if either of two accommodation strategies executed during resting, socket release with full socket size return and socket release with partial socket size return, enhanced limb fluid volume retention during subsequent activity.<h4>Study design</h4>Two repeated-measures experiments were conducted to assess the effects of socket release on limb fluid volume retention.<h4> ...[more]

PMID: 30628522

Similar Datasets

Project description:OBJECTIVE:To evaluate the content, construct, and discriminant validity of the Narrowing Beam Walking Test (NBWT), a performance-based balance test for lower limb prosthesis users. DESIGN:Cross-sectional study. SETTING:Research laboratory and prosthetics clinic. PARTICIPANTS:Unilateral transtibial and transfemoral prosthesis users (N=40). INTERVENTIONS:Not applicable. MAIN OUTCOME MEASURES:Content validity was examined by quantifying the percentage of participants receiving maximum or minimum scores (ie, ceiling and floor effects). Convergent construct validity was examined using correlations between participants' NBWT scores and scores or times on existing clinical balance tests regularly administered to lower limb prosthesis users. Known-groups construct validity was examined by comparing NBWT scores between groups of participants with different fall histories, amputation levels, amputation etiologies, and functional levels. Discriminant validity was evaluated by analyzing the area under each test's receiver operating characteristic (ROC) curve. RESULTS:No minimum or maximum scores were recorded on the NBWT. NBWT scores demonstrated strong correlations (?=.70?.85) with scores/times on performance-based balance tests (timed Up and Go test, Four Square Step Test, and Berg Balance Scale) and a moderate correlation (?=.49) with the self-report Activities-specific Balance Confidence scale. NBWT performance was significantly lower among participants with a history of falls (P=.003), transfemoral amputation (P=.011), and a lower mobility level (P<.001). The NBWT also had the largest area under the ROC curve (.81) and was the only test to exhibit an area that was statistically significantly >.50 (ie, chance). CONCLUSIONS:The results provide strong evidence of content, construct, and discriminant validity for the NBWT as a performance-based test of balance ability. The evidence supports its use to assess balance impairments and fall risk in unilateral transtibial and transfemoral prosthesis users.

Dataset Information

Adjustable sockets may improve residual limb fluid volume retention in transtibial prosthesis users.

Publications

Adjustable sockets may improve residual limb fluid volume retention in transtibial prosthesis users.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure