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1.
J Occup Rehabil ; 2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-37938435

RESUMO

PURPOSE: Firefighters perform dangerous and physically demanding work, increasing their risk of musculoskeletal injuries that can lead to work absences. Return-to-work procedures can help firefighters return-to-work sooner and safely. The purpose of this study was to explore what firefighters understand about return-to-work procedures in their workplaces, and what firefighters believe the facilitators and barriers to return-to-work are. METHODS: Thirty-eight Canadian career firefighters were recruited for semi-structured interviews. Qualitative descriptive methods were used to analyze the transcripts. Two researchers performed the inductive coding and thematic analysis. RESULTS: Five themes were identified: 1. Variation in the return-to-work process knowledge among firefighters based on their experiences; 2. Accessible medical resources and treatments to support injury recovery; 3. Light duties must be meaningful and suitable; 4. Pressures to return-to-work too soon may lead to negative consequences; and 5. Heavy physical demands of firefighting may become a barrier for return-to-work. 'Factors affecting RTW depended on personal experiences and context' was the overarching theme identified, as many reported facilitators for return-to-work were also reported as barriers in different contexts. There was a variation in the experiences and understanding of return-to-work. CONCLUSION: There is a lack of knowledge of the return-to-work processes. Firefighters require access to clear return-to-work policies and procedures and treatments that are targeted to firefighting duties to support recovery from injuries and regain physical abilities after an injury. Firefighters must be able to perform all essential duties before returning to firefighting work, as returning to work too soon can lead to further injury.

2.
Int Arch Occup Environ Health ; 95(3): 723-735, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34674035

RESUMO

PURPOSE: To identify predictors of return to work, duration of time off work, and claim closure for first responders experiencing injuries or illnesses, and summarize the claim data. METHODS: First responder claims collected between January 2012 and July 2017 were obtained from a disability management company. Known predictors of return to work were extracted from the data including age, sex, diagnosis, years of service, claim lag, medical report lag, and the return-to-work duties. Survival analyses were performed to identify predictors of return to work and claim closure using the Cox proportional regression analysis. Log-rank tests were performed to identify predictors that affected the rate of return to work and claim closure. Summary statistics were performed for the injury and return-to-work data. RESULTS: 60 of the 67 (89.6%) identified first responders returned to work within the data collection period. Musculoskeletal injuries predicted an increased likelihood of returning to work (hazard ratio = 2.0, 95%CI = 1.14-3.60) and a shorter duration of time off work (37 days on average) compared to mental health issues. Everyday of claim lag and medical report lag predicted a 2% decrease in likelihood of return to work. Returning to work was the only predictor of claim closure. 45 (67.2%) first responders returned to their pre-absence duties. 22 (32.8%) mental health claims and 45 (67.2%) injury claims were identified. CONCLUSIONS: 89.6% of first responders returned to work, although only 67.2% returned to their pre-absence duties. Predictors of return to work included injury type, as first responders with musculoskeletal injuries returned to work sooner, and claim and medical lag delayed the return to work.


Assuntos
Socorristas , Traumatismos Ocupacionais , Humanos , Saúde Mental , Traumatismos Ocupacionais/epidemiologia , Retorno ao Trabalho , Indenização aos Trabalhadores
3.
BMC Musculoskelet Disord ; 23(1): 551, 2022 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-35676667

RESUMO

BACKGROUND: The brief Michigan Hand Questionnaire (brief MHQ) is a 12-item self-reported measure of hand function for patients with hand disorders which has been validated using Classical Test Theory. Rasch analysis can provide more detailed psychometric information. The purpose of this Rasch analysis is to assess the psychometric properties of the brief MHQ for patients with thumb osteoarthritis, and to make recommendations for improvements to the questionnaire if needed.  METHODS: The Michigan Hand Questionnaire and demographic data were collected from 923 thumb osteoarthritis patients treated in specialized clinics for hand surgery and therapy in the Netherlands. Rasch analysis was performed on the 12 items of the brief MHQ using RUMM 2030 to assess the fit of the brief MHQ to the Rasch model. To determine fit, analysis of fit summary statistics, individual person fit and individual item fit were assessed. Threshold distributions were assessed to identify if any items required rescoring. The Person Separation Index was calculated to measure reliability of the questionnaire. Differential item functioning was assessed to identify item bias, and Principal Component Analysis was performed to identify unidimensionality and local dependence. RESULTS: The brief MHQ showed misfit (χ2 = 1312.5, p < 0.0001) with 6 items having disordered thresholds and 9 items requiring rescoring. After deleting 3 of the rescored items due to significant item fit residuals, the brief MHQ had an acceptable reliability (Cronbach's alpha = 0.79). Misfit to the model (χ2 = 49.6, p = 0.0001), multidimensionality (10.2% of t-tests were significant), and item bias from non-uniform differential item functioning for 7 items across many person variables were still found. CONCLUSION: Although no satisfactory solutions were found to correct the misfit to the Rasch model, it is recommended that the response options of the brief MHQ be rescored, and that items 6, 9 and 10 be removed. The lack of unidimensionality indicates that the items do not represent the singular construct of hand disability and that totalling the scores of the brief MHQ does not provide a valid measure of hand disability for people with thumb osteoarthritis. The 37-item Michigan Hand Questionnaire may provide a better assessment of hand disability for patients with thumb osteoarthritis.


Assuntos
Osteoartrite , Inquéritos e Questionários , Polegar , Humanos , Osteoartrite/diagnóstico , Psicometria , Reprodutibilidade dos Testes , Polegar/patologia
4.
J Occup Rehabil ; 29(1): 194-204, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29802581

RESUMO

Purpose Performance-based and disease indicators have been widely studied in firefighters; self-reported work role limitations have not. The aim of this study was to describe the distributions and correlations of a generic self-reported Work Limitations Questionnaire (WLQ-26) and firefighting-specific task performance-based tests. Methods Active firefighters from the City of Hamilton Fire Services (n = 293) were recruited. Participants completed the WLQ-26 to quantify on-the-job difficulties over five work domains: work scheduling (4 items), output demands (7 items), physical demands (8 items), mental demands (4 items), and social demands (3 items). A subset of participants (n = 149) were also assessed on hose drag and stair climb with a high-rise pack performance-based tests. Descriptive statistics and correlations were used to compare item/subscale performance; and to describe the inter-relationships between tests. Results The mean WLQ-26 item scores (/5) ranged from 4.1 to 4.4 (median = 5 for all items); most firefighters (54.5-80.5%) selected "difficult none of the time" response option on all items. A substantial ceiling effect was observed across all five WLQ-26 subscales as 44.0-55.6% were in the highest category. Subscale means ranged from 61.8 (social demands) to 78.7 (output demands and physical demands). Internal consistency exceeded 0.90 on all subscales. For the hose drag task, the mean time-to-completion was 48.0 s (SD = 14.5; range 20.4-95.0). For the stair climb task, the mean time-to-completion was 76.7 s (SD = 37.2; range 21.0-218.0). There were no significant correlations between self-report work limitations and performance of firefighting tasks. Conclusions The WLQ-26 measured five domains, but had ceiling effects in firefighters. Performance-based testing showed wider score range, lacked ceiling effects and did not correlate to the WLQ-26. A firefighter-specific, self-report role functioning scale may be needed to identify compromised work role capabilities in firefighters.


Assuntos
Bombeiros , Autorrelato , Avaliação da Capacidade de Trabalho , Desempenho Profissional/estatística & dados numéricos , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Análise e Desempenho de Tarefas , Adulto Jovem
5.
J Strength Cond Res ; 33(2): 559-571, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30689619

RESUMO

Nazari, G, MacDermid, JC, Sinden, KE, Richardson, J, and Tang, A. Reliability of Zephyr Bioharness and Fitbit Charge measures of heart rate and activity at rest, during the modified Canadian Aerobic Fitness Test, and recovery. J Strength Cond Res 33(2): 559-571, 2019-The purpose of this study was to determine the intrasession and intersession reliability of Zephyr Bioharness (ZB) and Fitbit Charge variables in both healthy men and women at rest, during the Modified Canadian Aerobic Fitness Test (mCAFT), and throughout recovery. Stratified convenience and snowball sampling were used to recruit 60 participants (30 women, 48 ± 15 years) and (30 men, 48 ± 15 years) from McMaster University student, staff, and faculty population. At rest, intrasession average heart rate (b·min). Intraclass correlation coefficients (ICCs) and Standard Error of Measurement [SEM] for Zephyr ranged from (0.94-0.97) [1.17-1.70] to (0.92-0.97) [1.45-2.10] for Fitbit Charge. During the mCAFT, the Zephyr ICCs and (SEM) ranged from 0.31-0.99 (1.28-8.10) to 0.45-0.99 (1.45-8.71) for the Fitbit Charge. Throughout the recovery, the ICCs and (SEM) ranged from 0.44-0.98 (1.26-10.47) to 0.45-0.98 (1.15-11.90) for Zephyr and Fitbit devices, respectively. At rest, intersession ICCs (SEM) for Zephyr and Fitbit ranged from 0.90-0.94 (1.73-2.37) to 0.88-0.94 (1.83-2.67), respectively. At mCAFT, the Zephyr ICCs (SEM) ranged from 0.91-0.97 (3.12-4.64) to 0.85-0.98 (3.28-4.88) for the Fitbit. Throughout the recovery, the ICCs (SEM) ranged from 0.93-0.97 (2.65-4.66) to 0.76-0.91 (3.17-4.67) for Zephyr and Fitbit devices, respectively. To conclude, both the ZB and Fitbit Charge devices demonstrated excellent reliability measures throughout the 3 phases. The findings from our study add to the existing pool of literature regarding the reliability parameters of wearable devices and suggest that stable and consistent measures of heart rate and physical activity can be obtained using ZB and Fitbit Charge devices among healthy male and female participants at rest, during a standardized submaximal fitness test (mCAFT), and throughout recovery.


Assuntos
Exercício Físico/fisiologia , Frequência Cardíaca/fisiologia , Descanso/fisiologia , Dispositivos Eletrônicos Vestíveis/normas , Adulto , Idoso , Canadá , Teste de Esforço , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Adulto Jovem
6.
Ergonomics ; 62(8): 1033-1042, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31092138

RESUMO

The Ottawa Paramedic Physical Ability Test (OPPAT) is a physical employment standard (PES) that candidates must pass as a pre-hire requirement and that incumbents may have to pass prior to returning to work after absence, to demonstrate their physical capabilities as required to safely meet the demands of paramedic work. Consistent with best practice guidelines for PES development, it is important to establish reliability and to investigate sex-based performance differences. Active duty paramedics completed the OPPAT twice while candidates completed the OPPAT six times. Across all participants, a median improvement of 76.0 s was observed in OPPAT performance (922.0-846.0 s) between trial 1 and trial 2. Among candidates, OPPAT performance stabilised by the fourth trial confirming reliability. Sex-based analyses revealed median differences in OPPAT performance time of 39.0 and 63.0 s between males and females during the first and second trials respectively. Practitioner summary: Active duty paramedics and candidates performed the Ottawa Paramedic Physical Ability Test (OPPAT) faster following familiarisation. Among candidates, performance time stabilised by the fourth trial. Performance time was slower among females, but this had less impact on females' ability to meet the OPPAT standard.


Assuntos
Pessoal Técnico de Saúde/estatística & dados numéricos , Seleção de Pessoal/normas , Fatores Sexuais , Avaliação da Capacidade de Trabalho , Desempenho Profissional/estatística & dados numéricos , Adulto , Pessoal Técnico de Saúde/normas , Emprego/normas , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Análise e Desempenho de Tarefas
7.
J Occup Rehabil ; 27(2): 258-267, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-27394430

RESUMO

Background The long version of the organizational, policies and practices (OPP) had a high burden and short versions were developed to solve this drawback. The 11-item version showed promise, but the ergonomic subscale was deficient. The OPP-14 was developed by adding three additional items to the ergonomics subscale. The aim of this study is to evaluate the factor structure using confirmatory factor and Rasch analyses in healthy firefighters. Methods A sample of 261 firefighters (Mean age 42 years, 95 % male) were sampled. A confirmatory factor and Rasch analyses were used to assess the internal consistency, factor structure and other psychometric characteristics of revised OPP-14. Results The OPP-14 demonstrates sound factor structure and internal consistency in firefighters. Confirmatory factor analysis confirmed the consistency of the original 4-domain structure (CFI = 0.97, TLI = 0.96, and RMSEA = 0.053). The 5 items showing misfit initially with disordered thresholds were rescored. The four subscales satisfied Rasch expectations with well target and acceptable reliability. Conclusions The OPP-14 scale shows a promising factor structure in this sample and remediated deficits found in OPP-11. This version may be preferable for musculoskeletal concerns or work applications where ergonomic indicators are relevant.


Assuntos
Bombeiros , Traumatismos Ocupacionais/prevenção & controle , Política Organizacional , Inquéritos e Questionários/normas , Adulto , Estudos Transversais , Ergonomia/normas , Análise Fatorial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Saúde Ocupacional/normas , Psicometria , Reprodutibilidade dos Testes
8.
J Appl Biomech ; 33(2): 137-143, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27834561

RESUMO

Paramedics represent a unique occupational group where the nature of their work, providing prehospital emergency care, makes workplace modifications to manage and control injury risks difficult. Therefore, the provision of workplace education and training to support safe lifting remains a viable and important approach. There is, however, a lack of evidence describing movement strategies that may be optimal for paramedic work. The purpose of this study was to determine if a strategy leveraging a greater contribution of work from the lower body relative to the torso was associated with lower biomechanical exposures on the spine. Twenty-five active duty paramedics performed 3 simulated lifting activities common to paramedic work. Ground reaction forces and whole body kinematics were recorded to calculate: peak spine moment and angle about the L4/L5 flexion-extension axis as indicators of biomechanical exposure; and, joint work, integrated from net joint power as a measure of technique inclusive of movement dynamics. Paramedics generating more work from the lower body, relative to the trunk, were more likely to experience lower peak L4/L5 spine moments and angles. These data can inform the development of workplace training and education on safe lifting that focuses on paramedics generating more work from the lower body.


Assuntos
Transferência de Energia , Perna (Membro)/fisiologia , Remoção , Movimentação e Reposicionamento de Pacientes/métodos , Coluna Vertebral/fisiologia , Tronco/fisiologia , Suporte de Carga/fisiologia , Adulto , Pessoal Técnico de Saúde , Feminino , Humanos , Masculino , Avaliação da Capacidade de Trabalho
9.
Eur J Appl Physiol ; 116(11-12): 2357-2365, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27743025

RESUMO

PURPOSE: Epidemiological research has identified women to be more susceptible to developing neck-shoulder musculoskeletal disorders when performing low-force, repetitive work tasks. Whether this is attributable to gender differences in fatigability and motor control is currently unclear. This study investigated the extent to which women differ from men in fatigability and motor control while performing a short-cycle repetitive task. METHODS: 113 healthy young adults (58 women, 55 men) performed a standardized repetitive pointing task. The task was terminated when the subject's perceived exertion reached 8 on the Borg scale. The time to task termination, and changes in means and cycle-to-cycle variabilities of surface electromyography signals from start to end of the task, were compared between women and men, for the upper trapezius, anterior deltoid, biceps and triceps muscles. RESULTS: Women and men terminated the task after 6.5 (SD 3.75) and 7 (SD 4) min on average (p > 0.05). All four muscles showed an increase of 25-35 % in average muscle activity with fatigue (no significant sex differences). However, men exhibited a higher increase than women in trapezius muscle variability with fatigue (31 vs. 7 %; p < 0.05), and a decrease in biceps muscle variability where women had an increase (-23 vs. 12 %; p < 0.05). CONCLUSIONS: Our results suggest that women and men may not differ in the ability to perform repetitive tasks at low-to-moderate force levels. However, differences in motor control strategies employed in task performance may explain gender differences in susceptibility to developing musculoskeletal disorders when performing repetitive work for prolonged periods in occupational life.


Assuntos
Fadiga/fisiopatologia , Movimento , Contração Muscular , Fadiga Muscular , Músculo Esquelético/fisiopatologia , Desempenho Psicomotor , Adulto , Feminino , Humanos , Masculino , Força Muscular , Esforço Físico , Fatores Sexuais
10.
J Occup Rehabil ; 24(1): 146-59, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23584800

RESUMO

PURPOSE: Employers are tasked with developing injury management and return-to-work (RTW) programs in response to occupational health and safety policies. Physical demands analyses (PDAs) are the cornerstone of injury management and RTW development. Synthesizing and contextualizing policy knowledge for use in occupational program development, including PDAs, is challenging due to multiple stakeholder involvement. Few studies have used a knowledge translation theoretical framework to facilitate policy-based interventions in occupational contexts. The primary aim of this case study was to identify how constructs of the knowledge-to-action (KTA) framework were reflected in employer stakeholder-researcher collaborations during development of a firefighter PDA. METHODS: Four stakeholder meetings were conducted with employee participants who had experience using PDAs in their occupational role. Directed content analysis informed analyses of meeting minutes, stakeholder views and personal reflections recorded throughout the case. RESULTS: Existing knowledge sources including local data, stakeholder experiences, policies and priorities were synthesized and tailored to develop a PDA in response to the barriers and facilitators identified by the firefighters. The flexibility of the KTA framework and synthesis of multiple knowledge sources were identified strengths. The KTA Action cycle was useful in directing the overall process but insufficient for directing the specific aspects of PDA development. Integration of specific PDA guidelines into the process provided explicit direction on best practices in tailoring the PDA and knowledge synthesis. Although the themes of the KTA framework were confirmed in our analysis, order modification of the KTA components was required. Despite a complex context with divergent perspectives successful implementation of a draft PDA was achieved. CONCLUSIONS: The KTA framework facilitated knowledge synthesis and PDA development but specific standards and modifications to the KTA framework were needed to enhance process structure. Flexibility for modification and integration of PDA practice guidelines were identified as assets of the KTA framework during its application.


Assuntos
Bombeiros , Saúde Ocupacional , Traumatismos Ocupacionais/reabilitação , Desenvolvimento de Programas/métodos , Retorno ao Trabalho , Canadá , Gerenciamento Clínico , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Modelos Teóricos , Avaliação de Programas e Projetos de Saúde , Análise e Desempenho de Tarefas , Pesquisa Translacional Biomédica , Avaliação da Capacidade de Trabalho
11.
J Hand Ther ; 27(1): 55-62; quiz 62, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24268193

RESUMO

STUDY DESIGN: Systematic review. INTRODUCTION: Traumatic hand injuries are frequent cause of work related injuries and can result in prolonged durations of time loss from work. PURPOSE: To systematically review available evidence to determine which prognostic factors predict return-to-work (RTW) following work-related traumatic hand injuries. METHODS: We searched Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, CINAHL and PsycINFO from 1980 to September 2013 and reference lists of articles. Studies investigating any prognostic factors of RTW after traumatic hand injury were included. Two reviewers performed study selection, assessment of methodological quality and data extraction independently of each other. Identified factors were grouped into conceptual prognostic factor categories. RESULTS: We assessed 8 studies, which addressed 11 potential prognostic factors (i.e., sociodemographic factors, occupation, work compensation status, treatment related factors, impairment severity, location of injury, etc.). The quality of the studies was low to moderate. Across all included studies, RTW (original or modified work) occurred in over 60% of individuals by 6 months. There was consistent low-moderate quality evidence that individuals with more severe impairments and lower pre-injury income were less likely to RTW, and low-moderate quality evidence that age, gender and level of education had no impact on RTW. Evidence on other commonly cited prognostic factors were limited in the literature. CONCLUSION: Impairment severity and lower pre-injury income showed a consistent association with RTW following occupational hand injury, while other factors demonstrated no or variable effects across studies. Additional high-quality studies are warranted toward improving our understanding of the complex factors that mediate RTW following a traumatic work-related hand injury. LEVEL OF EVIDENCE: 2a.


Assuntos
Acidentes de Trabalho , Traumatismos da Mão/terapia , Retorno ao Trabalho , Fatores Etários , Escolaridade , Nível de Saúde , Humanos , Renda , Escala de Gravidade do Ferimento , Saúde Mental , Ocupações , Prognóstico , Fatores Sexuais , Indenização aos Trabalhadores
12.
J Am Coll Health ; : 1-10, 2023 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-36595577

RESUMO

Objective: To determine the impact of four classroom-based sessions on mindfulness and symptoms of psychological distress among first-year students. A secondary objective was to explore participants' involvement experiences. Participants: First-year undergraduate students at a Canadian university were recruited. Methods: A mixed-methods pre-experimental design with repeated measures was used. The mindfulness intervention involved four, 15-minute sessions delivered by a counselor from the university's Student Health and Wellness center. Results: A significant positive change to participants' mindfulness scores from pre- to post-intervention was observed. Qualitatively, themes relating to intervention benefits, challenges, and logistics emerged. Conclusions: Collectively, results supported the utility of this brief mindfulness intervention delivered to first-year students. Participants were appreciative of the techniques learned and the "in-class" delivery format. Given the pressures faced by post-secondary students, collaborating with student wellness centers in this way may represent a novel and efficient approach for attenuating health risks while promoting their personal wellness.

13.
Work ; 67(1): 185-191, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32986640

RESUMO

BACKGROUND: Musculoskeletal symptoms (MSSs) remain the most frequently reported type of injuries sustained during fire-ground operations in firefighters. However, there is a paucity of reports concerning the prevalence estimates of MSSs among female firefighters and different fire services across Canada. OBJECTIVES: To assess the point prevalence of self-reported MSSs, stratified by age and sex in a cohort of active duty firefighters from across Canada, and to determine whether age, sex or length of service can be used to predict the likelihood of the number of MSSs sustained. METHODS: We recruited 390 firefighters (272 males, 118 females). To identify the prevalence of self-reported rates of MSSs, firefighters were asked to complete a standardized 11-item questionnaire that asked, "Please indicate whether you have experienced pain in any body region within the last week", with response options that included "Yes", "No", and "Head", "Neck", "Shoulder", "Arm/Elbow/Hand", "Back", "Stomach/Abdomen", "Upper Thigh", "Knee", "Lower Leg", "Foot", "Other, please specify". RESULTS: Among the 390 full-time firefighters, 212 (54%) indicated to have experienced some type of MSSs within the last week. The most prevalent region-specific MSSs included, 123 (32%) in the back region, 92 (24%) in the shoulder region, 74 (19%) in the neck region and 70 (18%) in the knee region. In addition, women indicated a 1.6 times greater likelihood of sustaining ≥2 MSSs when controlling for individual differences in age and years of service. CONCLUSIONS: The point prevalence of MSSs in a cohort of full-time firefighters was 54% (55% males; 53% females). Women experienced a 1.4-1.6 times greater likelihood of sustaining MSSs when controlling for individual differences in age and years of service.


Assuntos
Bombeiros , Doenças Musculoesqueléticas/epidemiologia , Doenças Profissionais/epidemiologia , Dor/epidemiologia , Canadá/epidemiologia , Estudos de Coortes , Feminino , Humanos , Masculino , Prevalência , Inquéritos e Questionários
14.
Med Eng Phys ; 85: 104-112, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33081957

RESUMO

Individuals with hand osteoarthritis (OA) have impairments in grip strength and range of motion (ROM). Obtaining quantitative joint angle measures of the hand is difficult. Without a complete understanding of the kinematics of the hand, the assessment of hand OA when performing activities of daily living (ADL) and recreational activities is not fully understood. The objectives of this study were to establish a simple measurement technique (Grip Configuration Model) describing an individual's grip ROM using the Dartfish Movement Analysis Software, and compare the joint angle measures during maximum flexion/extension and five ADL in people with/without hand OA. Forty participants (20 without hand OA, 20 with hand OA) thumb CMC and MCP, and index MCP and PIP joint angles were evaluated for each activity using the Dartfish Software and Grip Configuration Model. Significant limitations of 17.2% (p < 0.001) and 12.7% (p = 0.01) were seen in the group with hand OA for maximum flexion/extension, respectively. The spray bottle task demonstrated a significant difference of 14.7% (p = 0.001) between the two test groups. Measurements using the Dartfish Software were compared against a manual goniometer and electromagnetic tracking system. This study demonstrated the weakened ROM in individuals with hand OA is translated to ADL and how the Grip Configuration Model simplifies the evaluation of how people grasp objects.


Assuntos
Atividades Cotidianas , Mãos , Força da Mão , Humanos , Amplitude de Movimento Articular , Software
15.
Work ; 67(1): 215-222, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32955483

RESUMO

BACKGROUND: Firefighters partake in and are exposed to a range of potentially traumatic events throughout their careers and the impact of such critical events could last a life time. Therefore, capturing such lifetime exposures is necessary for supporting firefighter health. OBJECTIVE: To estimate the prevalence of critical incidents in firefighters across Canada and determine whether the number of critical events varied based on age, gender, years of service; and to integrate our prevalence estimates using meta-analysis with previous studies to provide a pooled estimate. METHODS: We recruited 464 firefighters. Firefighters were asked to complete a self-report Critical Incident Inventory (CII) survey that included questions on exposure to critical events throughout their firefighting careers. Individual CII items were summarized as percentages, number of exposures, the total number and percentages of exposures to each of the six CII sub-scales. We also performed a multivariate enter regression analysis with the CII total score as dependant variable, and age, gender, years of service as independent variables, to estimate if the number of critical incidents among firefighters varied based on age, gender and years of service. RESULTS: Among the 390 full-time firefighters, 376 (96.4%) indicated exposure to some type of critical incident. More specifically, 351 (90%) reported a "respond to incident involving one or two deaths", and 314 (81%) reported a "respond to incident involving multiple serious injuries". Age, gender and years of service accounted for only 37.4% of the variance in the number of critical incidents among firefighters. In addition, our pooled estimate results of previous similar studies indicated an overall prevalence estimate of critical incident exposures was 93.40% (4 studies, 1725 of 1877 firefighters, 95% CI: 82.26 -99.30). CONCLUSIONS: Nearly all (96.4%) firefighters were exposed to some form of critical event over the span of their entire firefighting careers. Age, gender and years of service accounted for one-third of the variance in the number of critical incident exposures among firefighters.


Assuntos
Bombeiros , Saúde Ocupacional , Trauma Psicológico/epidemiologia , Canadá/epidemiologia , Humanos , Prevalência , Inquéritos e Questionários
16.
Physiother Can ; 71(3): 197-206, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31719715

RESUMO

Purpose: We determined the inter-instrument reliability and agreement parameters of the Fitbit Charge Heart Rate (Charge HR) device during three phases: rest, modified Canadian Aerobic Fitness Test (mCAFT), and recovery. Method: We recruited 60 participants for this cross-sectional measurement study using convenience and snowball sampling approaches. The performance of the Charge HR was assessed throughout the rest, mCAFT, and recovery phases. To establish inter-instrument reliability, the Charge HR variables - heart rate, steps taken, and energy expenditures - were compared with those for two other devices: the Zephyr BioHarness (ZB) for heart rate and the Fitbit One for steps taken and energy expenditure. Measurements were recorded every 30 seconds. Results: At rest, the inter-instrument intra-class correlation coefficient (ICC) (standard error of measurement [SEM]) for the Charge HR versus the ZB was ≥ 0.97 (range, min-max, 1.02-1.32). During the mCAFT and in recovery, the ICCs (SEMs) for the Charge HR and the ZB were ≥ 0.89 (range, min-max, 1.30-3.98) and ≥ 0.68 (range, min-max, 3.58-8.35), respectively. During the mCAFT only, the number of steps taken and the energy expenditure recorded by the Charge HR and the Fitbit One displayed ICCs (SEMs) of 0.97 (83.00) and 0.77 (14.70), respectively. The average agreement differences in heart rate in this pair-wise device comparison indicated mean differences of -0.20, 4.00, and 1.00 beats per minute at rest, during the mCAFT, and in recovery, respectively. Conclusions: The Charge HR heart rate variable demonstrated excellent inter-instrument reliability compared with the ZB and provided good levels of agreement. The steps taken and energy expenditure variables displayed excellent reliability measures between Charge HR and Fitbit One. Our findings may be used to capture field-based wireless measures of heart rate in various phases and provide information about possibly using the Charge HR and ZB devices interchangeably.


Objectif : déterminer la corrélation interinstrument et les paramètres de concordance du bracelet Fitbit Charge pour la fréquence cardiaque (Charge FC) pendant trois phases : repos, physitest aérobie canadien modifié (PACm, un test de capacité aérobique) et récupération. Méthodologie : les chercheurs ont recruté 60 participants pour cette étude transversale de mesures faisant appel aux approches d'échantillonnage de commodité et en boule de neige. Ils ont évalué le rendement du bracelet Charge FC pendant les phases de repos, de PACm et de récupération. Pour établir la corrélation interinstrument, ils ont comparé les variables du bracelet Charge FC (fréquence cardiaque, pas effectués et dépense énergétique) à celles de deux autres dispositifs : le Zephyr BioHarness (ZB) pour la fréquence cardiaque et le Fitbit One pour les pas effectués et la dépense énergétique. Ils ont enregistré les mesures toutes les 30 secondes. Résultats : au repos, le coefficient de corrélation intraclasse (CCI) interinstrument (erreur-type de mesure [ETM]) du Charge FC par rapport au ZB était de ≥ 0,97 (plage minimum-maximum de 1,02 à 1,32). Pendant le PACm et la récupération, le CCI (ETM) du Charge FC par rapport au ZB était ≥ 0,89 (plage minimum-maximum de 1,30 à 3,98) et ≥ 0,68 (plage minimum-maximum de 3,58 à 8,35), respectivement. Pendant le PACm seulement, le nombre de pas effectués et les dépenses énergétiques enregistrés par le Charge FC et le Fitbit One indiquaient un CCI (ETM) de 0,97 (83,00) et 0,77 (14,70), respectivement. Selon les différences moyennes de concordance de la fréquence cardiaque de cette comparaison par paire, les différences moyennes étaient de ­0,20, 4,00 et 1,00 battements à la minute (battements/min) au repos, pendant le PACm et la récupération, respectivement. Conclusion : la variable de la fréquence cardiaque du bracelet Charge FC présentait une excellente corrélation interinstrument par rapport au dispositif ZB et un bon niveau de concordance. Les variables des pas effectués et de la dépense énergétique présentaient d'excellentes mesures de concordance entre le bracelet Charge FC et le dispositif Fitbit One. Ces résultats peuvent servir à saisir les mesures sans fil de la fréquence cardiaque à diverses phases sur le terrain et fournir de l'information sur l'interchangeabilité possible du bracelet Charge FC et du dispositif ZB.

17.
Int J Occup Saf Ergon ; 25(1): 1-7, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28877646

RESUMO

INTRODUCTION: Few studies have addressed whether firefighters are fitter than the general population and possess sufficient levels of aerobic capacity and muscle strength to perform on-duty tasks in a safe and efficient manner, considering age and gender. We aimed to evaluate the fitness levels of Hamilton firefighters, and to determine the effects of age and gender. METHODS: In total, 89 participants were recruited. The modified Canadian aerobic fitness test was used to determine participants' estimated maximal oxygen consumption (VO2max) levels. For upper and lower body strength levels, a calibrated J-Tech hand-held dynamometer and a National Institute for Occupational Safety and Health (NIOSH) lifting device was used respectively. RESULTS: Firefighters' mean (SD) VO2max level was 40.30 ± 6.25 ml·kg-1·min-1. Age proved to have a statistically significant impact on VO2max (p < 0.001). Gender displayed statistically significant effects on strength levels. Firefighters' age was the only statistically significant independent variable, and accounted for 61.00% of the variance in firefighters' aerobic capacity levels. CONCLUSIONS: Firefighters possessed somewhat similar aerobic capacities but much higher levels of body strength when compared with the general population. With age, firefighters' aerobic capacities decreased; however, their upper and lower body strength levels remained the same.


Assuntos
Bombeiros , Força Muscular , Consumo de Oxigênio/fisiologia , Aptidão Física/fisiologia , Adulto , Fatores Etários , Idoso , Canadá , Estudos Transversais , Exercício Físico/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Avaliação da Capacidade de Trabalho
18.
Work ; 63(4): 623-633, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31282455

RESUMO

BACKGROUND: The Ottawa Paramedic Physical Ability Test (OPPAT™) is a physical employment standard for the paramedic sector. If a candidate is unsuccessful in meeting the OPPAT™ performance standard they should be provided with an appropriate accommodation, such as a strength and conditioning program, to improve performance. OBJECTIVE: Develop, implement and evaluate the effectiveness of a 4-week strength and conditioning program on improving OPPAT™ performance and associated fitness measures in paramedic candidates. METHODS: A 4-week strength and conditioning program was developed to focus on strength and power improvements. Based on initial OPPAT™ performance, participants were divided into high and low performing groups; only the low performing group received the training intervention. OPPAT™ completion times and relevant fitness measures were compared pre- to post- intervention and between groups. RESULTS: Over the 4-weeks, peak lower body power and grip strength did not significantly improve in the intervention group, however OPPAT™ performance improved by 10%. The control group had significantly lower OPPAT™ completion times both pre- and post-intervention (19% and 11% lower respectively), as well as greater grip strength and peak lower body power. CONCLUSIONS: Implementation of a targeted strength and conditioning program successfully improved OPPAT™ performance in low performing candidates.


Assuntos
Pessoal Técnico de Saúde/estatística & dados numéricos , Avaliação de Desempenho Profissional/estatística & dados numéricos , Exame Físico/estatística & dados numéricos , Aptidão Física , Treinamento Resistido/métodos , Adulto , Pessoal Técnico de Saúde/normas , Avaliação de Desempenho Profissional/normas , Emprego/normas , Feminino , Humanos , Masculino , Ontário , Desenvolvimento de Programas , Avaliação de Programas e Projetos de Saúde , Adulto Jovem
19.
Work ; 62(3): 477-483, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30909263

RESUMO

BACKGROUND: Firefighters have high rates of exposures to critical events that contribute to physical and mental stress, resulting in high rates of injury and work-injury compensation claims. OBJECTIVE: To determine the prevalence of critical incidents in firefighters from a single fire service, and whether the number of critical events varied based on age, gender, years of service and/or rank. METHODS: We recruited 300 full-time firefighters. Firefighters were asked to complete a self-report Critical Incident Inventory survey that included questions on exposure to critical events during firefighting duties, with a time reference point of the past two months. RESULTS: Among the 293 firefighters, 252 (85%) indicated exposure to some type of critical incident. More specifically, 187 (64%) reported a respond to incident involving one or two deaths, 155 (53%) indicated a direct exposure to blood and body fluids, and 98 (33%) reported a response to an incident involving multiple serious injuries. Age, gender, years of service and rank accounted for only 1% of the variance in the number of critical incidents among firefighters. CONCLUSIONS: In this study, 85% of firefighters had been exposed to some type of critical incident in the previous 2-months and this did not vary by age, gender, years of service and/or rank.


Assuntos
Bombeiros/psicologia , Erros Médicos/psicologia , Exposição Ocupacional/efeitos adversos , Prevalência , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Erros Médicos/efeitos adversos , Pessoa de Meia-Idade , Ontário , Estresse Psicológico/complicações , Estresse Psicológico/etiologia , Estresse Psicológico/psicologia , Inquéritos e Questionários
20.
Rehabil Res Pract ; 2018: 3234176, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29850253

RESUMO

The overall aim of this study was to measure the physiological responses of firefighters from a single fire service during simulated functional firefighting tasks and to establish the relationship between physical fitness parameters and task performance. 46 males and 3 females firefighters were recruited. Firefighters' aerobic capacity levels were estimated using the Modified Canadian Aerobic Fitness Test (mCAFT). Grip strength levels, as a measure of upper body strength levels, were assessed using a calibrated J-Tech dynamometer. The National Institute for Occupational Safety and Health (NIOSH) protocol for the static floor lifting test was used to quantify lower body strength levels. Firefighters then performed two simulated tasks: a hose drag task and a stair climb with a high-rise pack tasks. Pearson's correlation coefficients (r) were calculated between firefighters' physical fitness parameters and task completion times. Two separate multivariable enter regression analyses were carried out to determine the predictive abilities of age, sex, muscle strength, and resting heart rate on task completion times. Our results displayed that near maximal heart rates of ≥88% of heart rate maximum were recorded during the two tasks. Correlation (r) ranged from -0.30 to 0.20. For the hose drag task, cardiorespiratory fitness and right grip strength (kg) demonstrated the highest correlations of -0.30 and -0.25, respectively. In predicting hose drag completion times, age and right grip strength scores were shown to be the statistically significant (p < 0.05) independent variables in our regression model. In predicting stair climb completion times, age and NIOSH scores were shown to be the statistically significant (p < 0.05) independent variables in our regression model. In conclusion, the hose drag and stair climb tasks were identified as physiological demanding tasks. Age, sex, resting heart rate, and upper body/lower body strength levels had similar predictive values on hose drag and stair climb completion times.

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