Occupational Health and Industrial Hygiene Commons^™

Une Revue Des Méthodes D’Évaluation De La Rentabilité De La Prévention Des Lésions Professionnelles, Martin Lebeau

Rapports de recherche scientifique

Les lésions professionnelles entraînent des coûts élevés qui sont assumés par l’ensemble des acteurs économiques de la société (travailleurs, employeurs, assureurs, collectivité). L’investissement dans la prévention des lésions professionnelles peut permettre d’en réduire l’ampleur. Toutefois, l’investissement en vaut-il toujours le coût? Et comment peut-on estimer la rentabilité d’un investissement en prévention?

Cette étude s’inscrit dans la volonté institutionnelle de développer des connaissances et des outils en lien avec le calcul de la rentabilité des investissements en prévention des lésions professionnelles dans les entreprises.

Une recension des plus récentes études sur le sujet, publiées entre 1995 et 2017, a permis de …

The Ocean Lifeguard Intervention Continuum: A Cognitive Aid For Surf Lifeguard Education, William A. Koon, Ryan M. Gates, Shane Scoggins, Paul Andrus, Jack A. Futoran

International Journal of Aquatic Research and Education

Ocean lifeguards are constantly engaged in beach risk analysis, required to efficiently evaluate a variety of environmental and other factors quickly in order to triage and prioritize who needs help. Teaching these skills is a challenge for introductory training programs. We sought to improve new lifeguards’ understanding of the interaction of various risk components in the beach environment and aid decision-making related to when a lifeguard should intervene in a situation. We developed a two-part cognitive aid for introductory ocean lifeguard education depicting individual and interacting elements of a beach goer’s risk of drowning or injury and the process by …

Supporting Older Adults Through Aging In Place And Capable Programs, Laura Compton

OTD Capstone Projects

This experiential component or doctoral capstone project involved a partnership with Habitat for Humanity of Greater Memphis. Through this agency, projects were completed based on identified needs of the Aging in Place and CAPABLE programs. The Aging in Place (AIP) program provides critical home repairs to low-income adults aged 60 years and older. The CAPABLE program provides the same critical home repairs along with a select number of visits from a registered nurse and an occupational therapist to help the older adults age in place safely.

An Ergonomic Assessment Of Healthcare Rehabilitation Workers, William Shepherd, Laramie Locke, Katherine Archibong

Scholars Week

Patient handling is a common task within the healthcare industry. Rehabilitation Therapists (RTs) and Rehabilitation Therapist Assistants (RTAs) report a significantly high incidence rate of low-back injuries and other musculoskeletal disorders (MSDs). The purpose of this study was to characterize the ergonomic risks associated with patient transfers and assisted gait therapy. Exposure to ergonomic risk factors were assessed using the Strain Index (SI), Rapid Entire Body Assessment (REBA), and 3-Dimensional Static Strength Prediction Program (3DSSPP). Subjects included three RTs and one RTA at a local assisted living and rehabilitation healthcare facility. Preliminary results indicate a high risk of developing MSDs …

Incapacité Due À Un Trouble Musculosquelettique : Les Inquiétudes Liées À L'Environnement De Travail, Marie-France Coutu, Marie-José Durand, Iuliana Nastasia, Fergal O'Hagan, Patrick Gosselin, Marie-Élise Labrecque, Sara Pettigrew, Djamal Berbiche

Rapports de recherche scientifique

Environ une personne sur trois dans le monde vivrait avec un trouble musculosquelettique (TMS) persistant. Plusieurs auteurs soulignent l’influence significative des facteurs psychosociaux, dont l’anxiété, sur le développement de l’incapacité prolongée. Associées à l’anxiété, des inquiétudes excessives ont été documentées chez des travailleurs ayant une douleur persistante d’origine musculosquelettique. Les inquiétudes ne favorisent pas l’adaptation en contexte d’une situation problématique. Cependant, aucune étude n’a jusqu’à présent tenté de comprendre ces inquiétudes, en lien avec l’environnement de travail. Une meilleure compréhension de ce phénomène semble un incontournable pour offrir une action mieux ciblée aux travailleurs ayant une incapacité au travail prolongée. …

Adherence To A Home Exercise Programme Following A Clinical Programme For Non-Acute Non-Specific Low Back Pain: An Exploratory Study, Judith L'Heureux, Marie-France Coutu, Djamal Berbiche, Christian Larivière

Études primaires

Purpose:Lack of adherence to home exercise programmes is hypothesised to partially explain the modest clinical effects seen in patients with low back pain. This study explored the association between the main biopsychosocial factors and adherence using a theory-driven approach including the fear-avoidance model, the common-sense model and the working alliance concept.

Methods: A repeated measures design was used. During and after an eight-week clinical exercise programme, 48 participants with non-acute and disabling low back pain followed a home exercise programme. Questionnaires assessed home exercise adherence and biopsychosocial factors at baseline, after the eight-week clinical programme and at the six-month follow-up. …

Structural Remodelling Of The Lumbar Multifidus, Thoracolumbar Fascia And Lateral Abdominal Wall Perimuscular Connective Tissues: A Cross-Sectional And Comparative Ultrasound Study, Christian Larivière, Richard Preuss, Dany H. Gagnon, Hakim Mecheri, Sharon M. Henry

Études primaires

Introduction

With low back pain (LBP), remodelling of the lumbar soft tissues involves both trunk muscles and neighbouring passive connective tissues. The aim of the present study was to compare three quantitative measures of these tissues, using ultrasound imaging (USI), among healthy controls and individuals with LBP.

Methods

USI measures from 30 healthy subjects and 34 patients with non-acute LBP were compared between groups and sexes. The measures employed were (1) lumbar multifidus echogenicity (fatty/fibrosis infiltration) at three vertebral levels; (2) posterior layer thickness of the thoracolumbar fascia, and (3) thickness of the perimuscular tissues surrounding the external oblique, internal …

Three-Month Efficacy Of Three Knee Braces In The Treatment Of Medial Knee Osteoarthritis In A Randomized Crossover Trial, Xavier Robert-Lachaine, Yoann Dessery, Étienne L. Belzile, Sylvie Turmel, Philippe Corbeil

Études primaires

Immediate biomechanical and functional effects of knee braces are often reported, however, the duration and type of knee brace treatment for knee osteoarthritis (KOA) remain unclear. The objective was to evaluate usage, comfort, pain, and knee adduction moment (KAM) of three knee braces each worn 3 months by patients. Twenty-four patients with KOA were assigned in a randomized crossover trial a valgus three-point bending system brace (V3P-brace), an unloader brace with valgus and external rotation functions (VER-brace) and a stabilizing brace used after ligament injuries (ACL-brace). Functional questionnaires and gait assessment were carried out before and after each brace wear …

Retour Et Maintien Durable En Emploi Après Un Trouble Musculosquelettique : Pistes D’Action Pour Le Superviseur, Iuliana Nastasia, Marie-France Coutu, Romain Rives, Jessica Dubé, Sarah Gaspard, Audrey Quilicot

Rapports de recherche scientifique

Les troubles musculosquelettiques (TMS) demeurent un problème majeur de santé au travail dans les pays industrialisés. Les conséquences de l’incapacité au travail représentent un fardeau important pour les travailleurs et leurs familles, mais aussi pour les organisations. Même si plusieurs études sur l’incapacité au travail soulignent le rôle important du superviseur dans le contexte de différents programmes de retour au travail, peu se sont intéressées spécifiquement au rôle de celui-ci, à ses responsabilités ainsi qu’à ses actions pour faciliter la réintégration des travailleurs qui ont eu une blessure musculosquelettique reliée au travail.

L’objectif général de cette étude est de proposer …

Réadaptation Au Travail Chez Les 45 Ans Et Plus Dans Le Secteur De La Santé Et Des Services Sociaux, Carl-Ardy Dubois, Kathleen Bentein, Alain Marchand

Rapports de recherche scientifique

Au Québec, les 45 ans et plus représentent une part croissante de la main-d'œuvre du secteur de la santé et des services sociaux. Pour assurer l’équilibre nécessaire entre la demande croissante de services de santé et l’offre de main-d’œuvre dans ce contexte de changement sociodémographique, les organisations du secteur font face au défi d’optimiser la participation au travail des plus âgés. Cela exige non seulement la prise en charge efficace des situations incapacitantes au travail chez les 45 ans et plus, mais aussi la prévention de ce type de lésions et le maintien ou la réinsertion en emploi de ceux …

Dépression Et Douleurs Musculosquelettiques : Évaluation Préliminaire D'Une Approche De Réadaptation Axée Sur La Promotion Du Retour Au Travail, Michael J. L. Sullivan, Timothy Wideman, Aliki Thomas

Rapports de recherche scientifique

Nombre de personnes ayant subi une blessure au travail présentent des symptômes de douleur et de dépression. La combinaison de symptômes de douleur et de dépression peut avoir un effet négatif sur le rétablissement de l’individu. La présence de symptômes de dépression peut nuire à la capacité d’accomplir de nombreuses activités importantes de la vie quotidienne, inclusion faite des activités professionnelles. Des études ont démontré que les travailleurs blessés qui présentent des symptômes de dépression demeurent absents du travail deux fois plus longtemps que les travailleurs blessés non dépressifs. Les interventions utilisées pour traiter la douleur et l’incapacité fonctionnelle chez …

Preliminary Evaluation Of An Approach To Rehabilitation Aimed At Promoting Return-To-Work In Individuals With Co-Morbid Musculoskeletal Pain And Depression, Michael J. L. Sullivan, Timothy Wideman, Aliki Thomas

Rapports de recherche scientifique

Nombre de personnes ayant subi une blessure au travail présentent des symptômes de douleur et de dépression. La combinaison de symptômes de douleur et de dépression peut avoir un effet négatif sur le rétablissement de l’individu. La présence de symptômes de dépression peut nuire à la capacité d’accomplir de nombreuses activités importantes de la vie quotidienne, inclusion faite des activités professionnelles. Des études ont démontré que les travailleurs blessés qui présentent des symptômes de dépression demeurent absents du travail deux fois plus longtemps que les travailleurs blessés non dépressifs. Les interventions utilisées pour traiter la douleur et l’incapacité fonctionnelle chez …

Obstacles Et Facilitateurs Du Retour Et Du Maintien Durable En Emploi Après Une Arthroplastie Totale Du Genou, Marie-France Coutu, Nathaly Gaudreault, Marie-Eve Major, Iuliana Nastasia, Réjean Dumais, Annie Deshaies, Marie-Elise Labrecque, Sara Pettigrew, Pascale Maillette

Rapports de recherche scientifique

Le nombre total d’arthroplasties du genou réalisées entre 2008 et 2009 a connu une augmentation significative par rapport à la décennie précédente, représentant une augmentation de 139 %. Cette augmentation est en partie attribuable au fait que la chirurgie procure une meilleure qualité de vie aux travailleurs vieillissants qui désirent demeurer actifs sur le marché du travail. De plus, l’innovation a amélioré la longévité des types de prothèses, de sorte que la chirurgie peut être proposée plus tôt dans la vie. Cet accroissement étant relativement récent, il existe peu de données dans la littérature permettant de situer la trajectoire de …

Maintaining Lumbar Spine Stability: A Study Of The Specific And Combined Effects Of Abdominal Activation And Lumbosacral Orthosis On Lumbar Intrinsic Stiffness, Christian Larivière, Jean-Alexandre Boucher, Hakim Mecheri, Daniel Ludvig

Études primaires

Abstract

Background:

Two potential interventions for enhancing lumbar stability are to actively increase abdominal muscle activity, either through the abdominal drawing-in maneuver (ADIM) or bracing, and passively increase lumbar stiffness using a lumbosacral orthosis (LSO).

Objective:

To compare the increase in lumbar stiffness after 2 active interventions (ADIM versus bracing) and 1 passive intervention (LSO), and to evaluate the combined effect of active (abdominal bracing) and passive interventions.

Methods:

In this experimental and comparative study, lumbar stiffness, a surrogate measure of lumbar stability, was estimated in 25 healthy individuals during 7 trunk perturbation conditions: (1) control, (2) ADIM, (3) bracing …

Ultrasound Measures Of The Abdominal Wall In Patients With Low Back Pain Before And After An 8-Week Lumbar Stabilization Exercise Program, And Their Association With Clinical Outcomes, Christian Larivière, Sharon M. Henry, Dany H. Gagnon, Richard Preuss, Jean-Pierre Dumas

Études primaires

Background

Lumbar stabilization exercise programs (LSEPs) act positively on clinical outcome measures in patients with low back pain (LBP), but the underlying mechanisms are not well understood. Among the various neuromuscular mechanisms, a good candidate is better activation of the abdominal wall, as measured with rehabilitative ultrasound imaging (RUSI).

Objectives

To determine whether RUSI measures are (1) sensitive to LBP status and treatment (LSEP) and (2) correlate with clinical outcomes following the LSEP.

Design

An exploratory one-arm clinical trial with healthy participants as a control group.

Setting

LSEP was delivered in a clinical setting; outcomes were measured in a laboratory …

Assessment Of Interprofessional Team Collaboration Scale (Aitcs): Further Testing And Instrument Revision., Carole Orchard, Linda L Pederson, Emily Read, Cornelia Mahler, Heather Laschinger

Nursing Publications

INTRODUCTION: The need to be able to assess collaborative practice in health care teams has been recognized in response to the direction for team-based care in a number of policy documents. The purpose of this study is to report on further refinement of such a measurement instrument, the Assessment of Interprofessional Team Collaboration Scale (AITCS) first published in 2012. To support this refinement, two objectives were set: Objective 1: to determine whether the items from the data collected in 2016 load on the same factors as found for the 2012 version of the 37-item AITCS. Objective 2: to determine whether …

Effects Of Motion Segment Simulation And Joint Positioning On Spinal Loads In Trunk Musculoskeletal Models, F. Ghezelbash, A. H. Eskandari, A. Shirazi-Adl, N. Arjmand, Z. El Ouaaid, A. Plamondon

Études primaires

Musculoskeletal models represent spinal motion segments by spherical joints/beams with linear/nonlinear properties placed at various locations. We investigated the fidelity of these simplified models (i.e., spherical joints with/without rotational springs and beams considering nonlinear/linear properties) in predicting kinematics of the ligamentous spine in comparison with a detailed finite element (FE) model while considering various anterior-posterior joint placements. Using the simplified models with different joint offsets in a subject-specific musculoskeletal model, we computed local spinal forces during forward flexion and compared results with intradiscal pressure measurements. In comparison to the detailed FE model, linearized beam and spherical joint models failed to …

Trunk Musculoskeletal Response In Maximum Voluntary Exertions: A Combined Measurement-Modeling Investigation, F. Ghezelbash, Z. El Ouaaid, A. Shirazi-Adl, A. Plamondon, N. Arjmand

Études primaires

Maximum voluntary exertion (MVE) tasks quantify trunk strength and maximal muscle electromyography (EMG) activities with both clinical and biomechanical implications. The aims here are to evaluate the performance of an existing trunk musculoskeletal model, estimate maximum muscle stresses and spinal forces, and explore likely differences between males and females in maximum voluntary exertions. We, therefore, measured trunk strength and EMG activities of 19 healthy right-handed subjects (9 females and 10 males) in flexion, extension, lateral and axial directions. MVEs for all subjects were then simulated in a subject-specific trunk musculoskeletal model, and estimated muscle activities were compared with EMGs. Analysis …

Trunk Postural Adjustments: Medium-Term Reliability And Correlation With Changes Of Clinical Outcomes Following An 8-Week Lumbar Stabilization Exercise Program, Jean-Alexandre Boucher, Richard Preuss, Sharon M. Henry, Marilee Nugent, Christian Larivière

Études primaires

Background

Low back pain (LBP) has been previously associated with delayed anticipatory postural adjustments (APAs) determined by trunk muscle activation. Lumbar stabilization exercise programs (LSEP) for patients with LBP may restore the trunk neuromuscular control of the lumbar spine, and normalize APAs. This exploratory study aimed at testing the reliability of EMG and kinematics-based postural adjustment measures over an 8-week interval, assessing their sensitivity to LBP status and treatment and examining their relationship with clinical outcomes.

Methods

Muscle activation of 10 trunk muscles, using surface electromyography (EMG), and lumbar angular kinematics were recorded during a rapid arm-raising/lowering task. Patients with …

The Effects Of An 8-Week Stabilization Exercise Program On Lumbar Multifidus Muscle Thickness And Activation As Measured With Ultrasound Imaging In Patients With Low Back Pain: An Exploratory Study, Christian Larivière, Dany H. Gagnon, Sharon M. Henry, Richard Preuss, Jean-Pierre Dumas

Études primaires

Background

Lumbar stabilization exercise programs (LSEP) produce positive effects on clinical outcomes, but the underlying mechanisms remain relatively unexplored. Psychological and neuromuscular mechanisms can be involved, such as a better activation of the lumbar multifidus, which represents one possibility.

Objectives

To determine the following: (1) the effect of an LSEP on lumbar multifidus muscle thickness and activation, as measured with rehabilitative ultrasound imaging (RUSI), in patients with low back pain (LBP); (2) the correlation between RUSI measures and any change in clinical outcomes following the LSEP; and (3) the reliability of RUSI measures in control subjects over 8 weeks.

Design …

Trunk Postural Balance And Low Back Pain: Reliability And Relationship With Clinical Changes Following A Lumbar Stabilization Exercise Program, Ali Shahvarpour, Dany H. Gagnon, Richard Preuss, Sharon M. Henry, Christian Larivière

Études primaires

Lumbar stabilization programs reduce pain and disability, but the mechanisms of action underlying this treatment are unknown. Trunk postural control during unstable sitting represents a surrogate measure of motor control mechanisms involved to maintain the dynamic stability of the spine. This exploratory study aimed to determine the reliability of trunk postural control measures over an 8-week interval, their sensitivity to low back pain status and treatment and their relationship with clinical outcomes. Trunk postural control measures were determined in patients with low back pain before and after an 8-week lumbar stabilization exercise program. Healthy controls were assessed over the same …

The Effect Of Wearing A Lumbar Belt On Biomechanical And Psychological Outcomes Related To Maximal Flexion-Extension Motion And Manual Material Handling, Ali Shahvarpour, Richard Preuss, Michael J.L. Sullivan, Alessia Negrini, Christian Larivière

Études primaires

Workers with low back pain (LBP) may benefit from wearing a lumbar belt (LB), but the biomechanical and psychological mechanisms involved are not fully understood. Two types of flexible LB (extensible and non-extensible) were compared to a control condition (no LB) regarding pain-related (pain, fear of pain and catastrophizing) and biomechanical (range of motion – ROM) outcomes related to two tasks: maximal trunk flexion-extension and manual material handling. Healthy controls and participants with LBP were tested. During both tasks, the two LBs reduced the lumbar ROM in participants with LBP in the same way as healthy controls. This was observed …

Stress: Effects And Management, Breanna Buscher

Nebraska College Preparatory Academy: Senior Capstone Projects

Stress is how the body reacts to any change in a person's life, as well as how it reacts in life or death situations. It is important everyone knows how to manage stress and what will happen if they do not. While there are an abundance of terrifying things that can happen when stress goes unmanaged, there are also plenty of easy ways everyone can keep their stress in check.

Stress can feel overwhelming and often cause health problems if gone unmanaged but luckily there are a plethora of ways to manage it.

Future Research: I would like to research …

The Effect Of An 8-Week Stabilization Exercise Program On The Lumbopelvic Rhythm And Flexion-Relaxation Phenomenon, Ali Shahvarpour, Sharon M. Henry, Richard Preuss, Hakim Mecheri, Christian Larivière

Études primaires

Background

Lumbar stabilization exercise programs should normalize the aberrant movements patterns often observed in patients with low back pain. This study aimed to determine the effect of an 8-week lumbar stabilization program on EMG/kinematics measures of the aberrant movement patterns in such patients. A secondary goal was to assess the 8-week test-retest reliability of these measures.

Methods

The patients followed an 8-week lumbar stabilization program while no intervention was carried out on the controls. Before and after this period, kinematics of the spine along with the EMG of paraspinal muscles were recorded during trunk maximal flexion-extension. ANOVAs tested the effect …

Influence Of Psychological Empowerment, Leadership, And Climate On Safety Outcomes, Christine Healy

Walden Dissertations and Doctoral Studies

Research has demonstrated that safety outcomes are impacted by workplace risk factors, but also supervisory practices and employee actions. An area that has not been explored is the impact of employee cognitions on safety outcomes defined as work-related injuries. Based on the conceptual framework of psychological empowerment (PE), the purpose of this study was to examine the relationship of employee cognitions as measured by PE as related to leadership and safety climate and the occurrence of work-related injury. The research examined the mediating effect of (PE) on the factors of leadership and safety climate and their relationship to work-related injury. …

Trunk Postural Control In Unstable Sitting: Effect Of Sex And Low Back Pain Status, Christian Larivière, Dany H. Gagnon, Hakim Mecheri

Études primaires

Background

Adequate neuromuscular control of the lumbar spine is required to prevent lumbar injuries. A trunk postural control test protocol, controlling for the influence of body size on performance, was implemented to carry out between-subject comparisons. The aim of this study was to assess the effect of sex and low back pain status with the use of two measures of trunk postural control, the first based on chair motion, and the second based on trunk motion.

Methods

Thirty-six subjects (with and without low back pain) performed three 60-s trunk postural control trials with their eyes closed while seated on an …

Injury Prevention With Physical Therapy, Karen Kott, Margaret F. Lemaster

Rehabilitation Sciences Faculty Publications

(First paragraph) Ergonomics is the study of human performance (positioning and movement) and workplace design, such as equipment, ambience, and placement. The purpose of ergonomics is to maximize productivity by increasing safety, improving work quality, reducing operator fatigue and discomfort, and decreasing the risk of work -related musculoskeletal disorders (MSDs).^1-3

Union And Nonunion Employment: An Investigative Study Of Factors In The Employment Setting That May Influence The Development Of Burnout, Rachel Elizabeth Costello

Walden Dissertations and Doctoral Studies

The primary goal of this two-phased, sequential mixed-methods study was to discover whether union affiliation is associated with a lower occurrence of burnout in factory workers by comparing union and nonunion workers. The objective was to determine levels of burnout in union and nonunion employees as well their perception of social support in the workplace. The theoretical synthesis consisted of conservation of resources theory and the theory of reasoned action. The Oldenburg Burnout Inventory (OLBI) and the Quality of Worklife Questionnaire were used to identify the characteristics of the workplace (job demands and job resources) and the level of burnout. …

Factors Influencing U.S. Army Personnel Meeting Body Mass Index Standards, Salma Theus

Walden Dissertations and Doctoral Studies

U.S. Army Regulations require soldiers to be fit, as excessive weight negatively impacts their readiness, health, and morale. A quantitative study examined if personal, behavioral, and/or environmental factors predict a soldier's self-efficacy and body mass index. Data were obtained from 117 soldiers on 6 scales: the Armed Services Vocational Aptitude Battery, the Army Physical Fitness Test, the General Self-Efficacy Scale, the Stress Management Questionnaire, the Lifestyle Assessment Inventory, and the Multifactor Leadership Questionnaire. Multiple regression analysis was used to determine if personal (intellectual capabilities and physical fitness), behavioral (lifestyle and stress management), and/or environmental (supervisor leadership) factors predict self-efficacy and …

Job Accommodation In The Automobile Industry : Addressing The Problem Of Lateral Epicondylitis, Thanigaivel Ashwin Raj

Theses and Dissertations (ETD)

Cumulative trauma disorders are musculoskeletal problems such as carpal tunnel syndrome, rotator cuff tendinitis, and epicondylitis which can affect assembly line workers. The injuries are thought to result from repetitive motions performed under excessive loads in anomalous postures. The project aimed to design, build, install, and evaluate worksite accommodation at the Saturn plant for a worker with right lateral epicondylitis. The goal was to make her fully functional in her original team which required addressing the injurious aspects of the task that caused or aggravated her injury.

A process of observation, interview, and analysis identified “the door mount” operation on …