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1.
Appl Ergon ; 118: 104261, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38518728

RESUMO

During the COVID-19 pandemic, telework best practices decreased in importance compared to the need for social distancing. It is important that ergonomics assessments for home office workstations are equally as effective as assessment for traditional offices to maintain teleworker wellbeing. The purpose of this case study is to compare a remote, picture-based, home office assessment to a traditional, in-person, office assessment for employees of one Canadian University. Intraclass Correlation Coefficients (ICCs) and Bland-Altman Analyses (BAAs) revealed that the two methods provide repeatable results, with good agreement. Feedback from the participants suggested that picture-based assessments were as effective as in-person assessments; but that picture-based assessments could be improved with video conferencing to discuss findings and ask follow-up questions. Participants found value in remote assessments and, while they preferred in-person assessments, picture-based assessments are suitable when needed as they allow for many assessments to be completed without violating social distancing restrictions.


Assuntos
COVID-19 , Ergonomia , Teletrabalho , Humanos , COVID-19/prevenção & controle , COVID-19/epidemiologia , Ergonomia/métodos , Canadá , Universidades , Masculino , Adulto , SARS-CoV-2 , Feminino , Pandemias/prevenção & controle , Local de Trabalho , Pessoa de Meia-Idade
2.
Appl Ergon ; 102: 103749, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35358853

RESUMO

Technological advancements have increased occupational flexibility for employees and employers alike. However, while effective telework requires planning, the COVID-19 pandemic required many employees to quickly shift to working from home without ensuring that the requirements for telework were in place. This study evaluated the transition to telework on university faculty and staff and investigated the effect of one's telework setup and ergonomics training on work-related discomfort in the at-home environment. Fifty-one percent of respondents reported increases in their existing discomfort while 24% reported new discomfort since working from home. These results suggest a need for ergonomic interventions including ergonomic training and individual ergonomic assessments for those who work from home.


Assuntos
COVID-19 , Teletrabalho , COVID-19/epidemiologia , COVID-19/prevenção & controle , Ergonomia , Humanos , Pandemias , SARS-CoV-2
3.
J Exp Biol ; 224(17)2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-34521117

RESUMO

Gait adaptations, in response to novel environments, devices or changes to the body, can be driven by the continuous optimization of energy expenditure. However, whether energy optimization involves implicit processing (occurring automatically and with minimal cognitive attention), explicit processing (occurring consciously with an attention-demanding strategy) or both in combination remains unclear. Here, we used a dual-task paradigm to probe the contributions of implicit and explicit processes in energy optimization during walking. To create our primary energy optimization task, we used lower-limb exoskeletons to shift people's energetically optimal step frequency to frequencies lower than normally preferred. Our secondary task, designed to draw explicit attention from the optimization task, was an auditory tone discrimination task. We found that adding this secondary task did not prevent energy optimization during walking; participants in our dual-task experiment adapted their step frequency toward the optima by an amount and at a rate similar to participants in our previous single-task experiment. We also found that performance on the tone discrimination task did not worsen when participants were adapting toward energy optima; accuracy scores and reaction times remained unchanged when the exoskeleton altered the energy optimal gaits. Survey responses suggest that dual-task participants were largely unaware of the changes they made to their gait during adaptation, whereas single-task participants were more aware of their gait changes yet did not leverage this explicit awareness to improve gait adaptation. Collectively, our results suggest that energy optimization involves implicit processing, allowing attentional resources to be directed toward other cognitive and motor objectives during walking.


Assuntos
Marcha , Caminhada , Adaptação Fisiológica , Cognição , Metabolismo Energético , Humanos , Tempo de Reação
4.
Can J Ophthalmol ; 54(2): 159-163, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30975337

RESUMO

OBJECTIVE: To characterize changes in body positioning while performing a standardized slit lamp examination after exposure to an educational module on ergonomics. DESIGN: Prospective interventional pilot study. PARTICIPANTS: Ten ophthalmology residents. METHODS: An educational module discussing ergonomic issues in ophthalmology was created. In a standardized examination lane, participants were recorded performing 3 trials of an indirect slit lamp examination of a volunteer patient, adjusting equipment as they saw fit. Participants were then sent the module and within 2 weeks repeated the trial process. Data were processed using biomechanical software to obtain the Rapid Upper Limb Assessment (RULA) injury risk score, elbow and shoulder joint reaction moments, neck and trunk flexion angles, and spinal curvature magnitudes. RESULTS: The RULA injury risk scores decreased after completion of the module (95% CI 2.10-2.77), indicating a lesser risk for injury to the resident. Shoulder flexion and elbow abduction moments also decreased (95% CI -3.2 to -1.5 and -0.44 to -0.04, respectively), suggesting a more neutral body posture. The trunk flexion angle increased after completion of the module (95% CI -5.1 to -1.6), signifying a more upright trunk posture; this was confirmed by the lumbar spine curvature, which flattened postmodule (95% CI 6.6-940). CONCLUSIONS: These results suggest a promising ability for an educational module to mitigate some injury risk in this population during indirect slit lamp examination. It also delineated some awkward postures that persisted despite the module. These results will be reintegrated into the module to optimize its educational utility.


Assuntos
Educação de Pós-Graduação em Medicina , Ergonomia/métodos , Internato e Residência , Doenças Profissionais/prevenção & controle , Oftalmologia/educação , Postura/fisiologia , Microscopia com Lâmpada de Fenda/normas , Feminino , Humanos , Masculino , Doenças Profissionais/etiologia , Exposição Ocupacional/prevenção & controle , Projetos Piloto , Estudos Prospectivos
5.
Mediators Inflamm ; 2019: 2363460, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30983879

RESUMO

Hand osteoarthritis (HOA) includes different subsets; a particular and uncommon form is erosive HOA (EHOA). Interleukin- (IL-) 1ß plays a crucial role in the pathogenesis of osteoarthritis (OA); it is synthesized as an inactive precursor which requires the intervention of a cytosolic multiprotein complex, named inflammasome, for its activation. The aim of this study was to investigate the involvement of IL-1ß and the NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasome in patients with EHOA and nonerosive HOA (NEHOA) compared to healthy controls. In particular, we evaluated the gene expression of IL-1ß and NLRP3, the serum levels of IL-1ß, IL-6, IL-17, and tumor necrosis factor- (TNF-) α, and the protein levels of IL-1ß and NLRP3. We also assessed the relationships between IL-1ß and NLRP3 and clinical, laboratory, and radiological findings. Fifty-four patients with HOA (25 EHOA and 29 NEHOA) and 20 healthy subjects were included in the study. Peripheral blood mononuclear cell (PBMC) gene and protein expressions of IL-1ß and NLRP3 were quantified by quantitative real-time PCR and western blot. IL-1ß, IL-6, IL-17, and TNF-α serum levels were determined by ELISA. IL-1ß gene expression was significantly reduced (p = 0.0208) in EHOA compared to healthy controls. NLRP3 protein levels were significantly increased in the NEHOA group versus the control (p = 0.0063) and EHOA groups (p = 0.0038). IL-1ß serum levels were not significantly different across the groups; IL-6, IL-17, and TNF-α were not detectable in any sample. IL-1ß concentrations were negatively correlated with the Kellgren-Lawrence score in the whole population (r = -0.446; p = 0.0008) and in NEHOA (r = -0.608; p = 0.004), while IL-1ß gene expression was positively correlated with the number of joint swellings in the EHOA group (r = 0.512; p = 0.011). Taken together, our results, showing poorly detectable IL-1ß concentrations and minimal inflammasome activity in the PBMCs of HOA patients, suggest a low grade of systemic inflammation in HOA. This evidence does not preclude a possible involvement of these factors at the local level.


Assuntos
Articulação da Mão/patologia , Interleucina-1beta/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Osteoartrite/metabolismo , Idoso , Western Blotting , Caspase 1/metabolismo , Células Cultivadas , Feminino , Humanos , Inflamassomos/metabolismo , Interleucina-17/metabolismo , Interleucina-6/metabolismo , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Reação em Cadeia da Polimerase em Tempo Real , Fator de Necrose Tumoral alfa/metabolismo
6.
Hum Mov Sci ; 64: 67-74, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30660073

RESUMO

With the goal of reducing injury and enhancing performance, movement screening tools score an individual's movements against a standard and because it is a predictor of injury symmetry is often included in the score. Movement quality screening tools only consider kinematic asymmetry, which may underestimate the degree of asymmetry present during movement. Consider joint forces: if these forces are atypical, additional stress is created and control is reduced, which can lead to injury if the asymmetry is not addressed. The purpose of this study is to investigate movement symmetry in the kinematic, kinetic and muscle activity components of movement during a parallel squat. Thirty-four healthy individuals completed five body-weight, parallel squats. A motion capture system, two portable force plates, and electromyography (EMG) sensors recorded the squat motion, ground reaction forces and muscle activity. The variables of interest were the joint angles, joint moments, and EMG waveforms. Cross-correlations and normalized root-mean-square values were calculated for the left and right ankles, knees, and hips for each variable. A repeated-measures analysis of variance (ANOVA) tested for differences in symmetry (cross-correlation and nRMS) between the kinematic, kinetic, and muscle activity components at the ankle, knee, and hip during the squat. At all joints the kinematic component had the highest degree of symmetry, and the kinetic and muscle activity components showed poorer symmetry, with the muscle activity component being the least symmetric. The differences in symmetry between movement components suggests that movement performance evaluations should not rely exclusively on kinematics and observation to identify potential movement faults.


Assuntos
Movimento/fisiologia , Músculo Esquelético/fisiologia , Adulto , Articulação do Tornozelo/fisiologia , Fenômenos Biomecânicos/fisiologia , Eletromiografia/métodos , Feminino , Articulação do Quadril/fisiologia , Humanos , Cinética , Articulação do Joelho/fisiologia , Masculino , Postura/fisiologia , Amplitude de Movimento Articular/fisiologia , Adulto Jovem
7.
J Geriatr Phys Ther ; 42(2): E32-E38, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30028352

RESUMO

BACKGROUND AND PURPOSE: Prolonged sedentary time and limited physical activity can result in deleterious effects on health and mobility, especially for older adults with fall-related hip fracture. Therefore, the purpose of this study was to examine the effect of a multidisciplinary clinic on sedentary behavior and physical activity (prespecified secondary outcomes) and provide descriptions of activity patterns over 1 year for men and women. METHODS: We conducted a parallel-group, single-blinded randomized controlled trial comparing a multidisciplinary clinic and usual care (intervention) with usual care (control). We recruited 53 community-dwelling older adults aged 65+ years who were 3 to 12 months postfracture and collected data at baseline, 6, and 12 months; study staff were blinded to group allocation. The clinic included a geriatric assessment by the geriatrician, physiotherapist, and occupational therapist. Referrals were made to other professionals, when indicated. We collected the accelerometer-measured sedentary behavior and physical activity at 3 time points. We used linear mixed-effects models to compare groups at 6 and 12 months and mixed models to compare outcomes between men and women. RESULTS: Participants were sedentary for more than 10 hours of a 13-hour day, and there were no significant differences between the study groups at 6 months (2.4 [95% confidence interval: -22.4 to 27.2] minutes) or 12 months (-3.7 [95% confidence interval: -33.6 to 26.1] minutes). Compared with women, men spent 47.2 min/d more in sedentary time (P = .052) and 43.8 min/d less in light physical activity (P = .047). DISCUSSION: Older adults after hip fracture spend prolonged periods of waking hours sedentary with very little activity.


Assuntos
Exercício Físico , Fraturas do Quadril/reabilitação , Comportamento Sedentário , Acelerometria , Acidentes por Quedas , Idoso , Idoso de 80 Anos ou mais , Feminino , Avaliação Geriátrica , Fraturas do Quadril/etiologia , Humanos , Vida Independente , Masculino , Equipe de Assistência ao Paciente , Fatores Sexuais , Método Simples-Cego , Fatores de Tempo
8.
J Phys Act Health ; 15(6): 411-416, 2018 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-29570005

RESUMO

BACKGROUND: Physical activity confers many health benefits to older adults, and adopting activity into daily life routines may lead to better uptake. The purpose of this study was to test the effect of a lifestyle intervention to increase daily physical activity in older women through utilitarian walking and use of public transportation. METHODS: In total, 25 inactive women with mean age (SD) of 64.1 (4.6) years participated in this pilot randomized controlled trial [intervention (n = 13) and control (n = 12)]. Seven-day travel diaries (trips per week) and the International Physical Activity Questionnaire (minutes per week) were collected at baseline, 3, and 6 months. RESULTS: At 3 months, intervention participants reported 9 walking trips per week and 643.5 minutes per week of active transportation, whereas control participants reported 4 walking trips per week and 49.5 minutes per week of active transportation. Adjusting for baseline values, there were significant group differences favoring Everyday Activity Supports You for walking trips per week [4.6 (0.5 to 9.4); P = .04] and active transportation minutes per week [692.2 (36.1 to 1323.5); P = .05]. At 6 months, significant group differences were observed in walking trips per week [6.1 (1.9 to 11.4); P = .03] favoring the intervention (9 vs 2 trips per week). CONCLUSION: Given these promising findings, the next step is to test Everyday Activity Supports You model's effectiveness to promote physical activity in older women within a larger study.


Assuntos
Estilo de Vida , Prevenção Primária/métodos , Meios de Transporte/estatística & dados numéricos , Viagem/estatística & dados numéricos , Caminhada/fisiologia , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Inquéritos e Questionários
9.
Appl Physiol Nutr Metab ; 43(3): 233-239, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29049890

RESUMO

Physical activity confers many health benefits, but the underlying mechanisms require further exploration. In this pilot randomized controlled trial we tested the association between longitudinal measures of DNA methylation and changes in objective measures, including physical activity, weight loss, and C-reactive protein levels in community-dwelling women aged 55 to 70 years. We assessed DNA methylation from 20 healthy postmenopausal women, who did not have a mobility disability and allocated them to a group-based intervention, Everyday Activity Supports You, or a control group (monthly group-based health-related education sessions). The original randomized controlled trial was 6 months in duration and consisted of nine 2-h sessions that focused on reducing sedentary behaviour for the intervention group, or six 1-h sessions that focused on other topics for the control group. We collected peripheral blood mononuclear cells, both at baseline and 6 months later. Samples were processed using the Illumina 450k Methylation array to quantify DNA methylation at >485 000 CpG sites in the genome. There were no significant associations between DNA methylation and physical activity, but we did observe alterations at epigenetic modifications that correlated with change in percent body weight over a 6-month period at 12 genomic loci, 2 of which were located near the previously reported weight-associated genes RUNX3 and NAMPT. We also generated a potential epigenetic predictor of weight loss using baseline DNA methylation at 5 CpG sites. These exploratory findings suggest a potential biological link between body weight changes and epigenetic processes.


Assuntos
Metilação de DNA , Leucócitos Mononucleares/fisiologia , Estilo de Vida , Idoso , Exercício Físico , Feminino , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Redução de Peso
10.
Gerontol Geriatr Med ; 3: 2333721417709578, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28567437

RESUMO

Objective: To test the effect of a follow-up clinic on urinary incontinence (UI) and nocturia among older adults with hip fracture. Method: Fifty-three older adults (≥65 years) 3 to 12 months following hip fracture were enrolled and randomized to receive usual care plus the intervention (B4), or usual care (UC) only. The B4 group received management by health professionals, with need-based referrals. UI, nocturia, and quality of life were measured with questionnaires at baseline, 6 months, and 12 months. Results: There were 48 participants included in this analysis, and at baseline, 44% of study participants self-reported UI. At final assessment, six out of 24 B4 participants and 12 out of 24 UC participants reported UI. Four out of five study participants reported nocturia at baseline; this did not decrease during the study. Discussion: Following hip fracture, many older adults report UI and most report nocturia. Health professionals should be aware of the high occurrence of urinary symptoms among older adults post hip fracture.

11.
Gerontol Geriatr Med ; 3: 2333721417697663, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28540341

RESUMO

This study describes patients' perspectives on recovery during participation in a randomized controlled trial that tested a postoperative hip fracture management program (B4 Clinic), compared with usual care, on mobility. Semistructured qualitative interviews were conducted with 50 older adults with hip fracture (from both groups) twice over 12 months. A total of 32 women (64%) and 18 men (36%) participated in the study with a mean age at baseline of 82 (range = 65-98) years. A total of 40 participants reported recovery goals at some point during their recovery from hip fracture but only 18 participants realized their goals within 12 months. Recovering mobility, returning to prefracture activities, and obtaining stable health were the most commonly reported goals. Participants described good social support, access to physiotherapy, and positive perspective as most important to recovery. These factors were influenced by participants' knowledge, resources, and monthly contact with study staff (perceived as a form of social support). The most frequently reported barriers to participants' recovery were the onset of complications, pain, and limited access to physiotherapy. Potential implications of these findings include design and modification of new or preexisting fracture programs, prioritizing patient engagement and enhanced knowledge for future clinical research in hip fracture recovery.

12.
J Aging Res ; 2017: 2171865, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28409031

RESUMO

Purpose. To understand older adults' engagement in their recovery experience and rehabilitation after a fall-related hip fracture. Method. 50 community-dwelling older adults recovering from a recent (3-12 months) hip fracture (32 women, 18 men) participated in telephone interviews using a semistructured format at 6 and 12 months after recruitment into the study. Interviews were conducted as part of a mixed-methods study designed to test the effect of a postoperative hip fracture management program (B4 Clinic). Results. Three substantive themes were identified in the qualitative data: (1) managing expectations; (2) engaging in physical activity; and (3) there is life after fracture. Participants shared valuable insight into how their expectations for their recovery period compared to their lived experience and the role of physical activity in their ability to return to their prefracture activities. Conclusions. Our findings reflect older adults' expectations for recovery from hip fracture. Encouraging engagement in rehabilitative exercises and addressing expectations prior to hospital discharge may improve patients' adherence to rehabilitation programs, functional outcomes, and postoperative quality of life. Implications for rehabilitation include the necessity for early and ongoing engagement of rehabilitation professionals.

13.
Cogent Med ; 4: 1313505, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29308421

RESUMO

We used Bland Altman plots to compare agreement between a self-report diary and five different non-wear time algorithms [an algorithm that uses ≥60 min of consecutive zeroes (Troiano) and four variations of an algorithm that uses ≥90 min of consecutive zeroes to define a non-wear period] for estimating community-dwelling older adults' (n = 106) sedentary behaviour and wear time (min/day) as measured by accelerometry. We found that the Troiano algorithm may overestimate sedentary behaviour and wear time by ≥30 min/day. Algorithms that use ≥90 min of continuous zeroes more closely approximate participants' sedentary behaviour and wear time. Across the self-report diary vs. ≥90 min algorithm comparisons, mean differences ranged between -4.4 to 8.1 min/day for estimates of sedentary behaviour and between -10.8 to 1.0 min/day for estimates of wear time; all 95% confidence intervals for mean differences crossed zero. We also found that 95% limits of agreement were wide for all comparisons, highlighting the large variation in estimates of sedentary behaviour and wear time. Given the importance of reducing sedentary behaviour and encouraging physical activity for older adult health, we conclude that it is critical to establish accurate approaches for measurement.

14.
J Aging Phys Act ; 24(1): 79-84, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25950867

RESUMO

OBJECTIVES: To characterize patterns of sedentary behavior and physical activity in older adults recovering from hip fracture and to determine characteristics associated with activity. METHODS: Community-dwelling, Canadian adults (65 years+) who sustained hip fracture wore an accelerometer at the waist for seven days and provided information on quality of life, falls self-efficacy, cognitive functioning, and mobility. RESULTS: There were 53 older adults (mean age [SD] 79.5 [7.8] years) enrolled in the study; 49 had valid data and demonstrated high levels of sedentary time (median [p10, p90] 591.3 [482.2, 707.2] minutes/day), low levels of light activity (186.6 [72.6, 293.7]), and MVPA (2 [0.1, 27.6]), as well as few daily steps (2467.7 [617.1, 6820.4]). Regression analyses showed that age, gender, gait speed, and time since fracture were associated with outcomes. CONCLUSIONS: Older adults have long periods of sedentary time with minimal activity. Results are a call to action to encourage people to sit less and move more.


Assuntos
Fraturas do Quadril/fisiopatologia , Atividade Motora , Comportamento Sedentário , Acelerometria , Acidentes por Quedas/estatística & dados numéricos , Idoso , Canadá , Cognição/fisiologia , Feminino , Marcha/fisiologia , Humanos , Masculino , Limitação da Mobilidade , Qualidade de Vida , Recuperação de Função Fisiológica , Autoeficácia
16.
Artigo em Inglês | MEDLINE | ID: mdl-27175291

RESUMO

BACKGROUND: Maintaining physical activity is an important goal with positive health benefits, yet many people spend most of their day sitting. Our Everyday Activity Supports You (EASY) model aims to encourage movement through daily activities and utilitarian walking. The primary objective of this phase was to test study feasibility (recruitment and retention rates) for the EASY model. METHODS: This 6-month study took place in Vancouver, Canada, from May to December 2013, with data analyses in February 2014. Participants were healthy, inactive, community-dwelling women aged 55-70 years. We recruited through advertisements in local community newspapers and randomized participants using a remote web service. The model included the following: group-based education and social support, individualized physical activity prescription (called Activity 4-1-1), and use of a Fitbit activity monitor. The control group received health-related information only. The main outcome measures were descriptions of study feasibility (recruitment and retention rates). We also collected information on activity patterns (ActiGraph GT3X+ accelerometers) and health-related outcomes such as body composition (height and weight using standard techniques), blood pressure (automatic blood pressure monitor), and psychosocial variables (questionnaires). RESULTS: We advertised in local community newspapers to recruit participants. Over 3 weeks, 82 participants telephoned; following screening, 68% (56/82) met the inclusion criteria and 45% (25/56) were randomized by remote web-based allocation. This included 13 participants in the intervention group and 12 participants in the control group (education). At 6 months, 12/13 (92%) intervention and 8/12 (67%) control participants completed the final assessment. Controlling for baseline values, the intervention group had an average of 2,080 [95% confidence intervals (CIs) 704, 4,918] more steps/day at 6 months compared with the control group. There was an average between group difference in weight loss of -4.3 [95% CI -6.22, -2.40] kg and reduction in diastolic blood pressure of -8.54 [95% CI -16.89, -0.198] mmHg, in favor of EASY. CONCLUSIONS: The EASY pilot study was feasible to deliver; there was an increase in physical activity and reduction in weight and blood pressure for intervention participants at 6 months. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01842061.

17.
Gerontol Geriatr Med ; 1: 2333721415618858, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-28138480

RESUMO

Objectives: To determine gait characteristics of community-dwelling older adults at different speeds and during a crosswalk simulation. Methods: Twenty-two older adults completed walking trials at self-selected slow, usual, and fast paces, and at a crosswalk simulation, using the GAITRite walkway. These objective measures were complemented by self-report health and mobility questionnaires. Results: Gait speeds at self-selected slow, usual, and fast paces were 98.7 (18.1) cm/s, 140.9 (20.4) cm/s, and 174.0 (20.6) cm/s, respectively, and at simulated crosswalk conditions was 144.2 (22.3) cm/s. For usual pace, right step length variability was 2.0 (1.4) cm and step time variability was 13.6 (7.2) ms, compared with 2.4 (1.3) cm and 17.3 (9.7) ms, respectively, for crosswalk conditions. Discussion: Our sample of healthy older adults walked at a speed exceeding standards for crossing urban streets; however, in response to a crosswalk signal, participants adopted a significantly faster and more variable gait.

18.
J Arthroplasty ; 29(9 Suppl): 193-200, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25060560

RESUMO

A retrospective review of 467 Oxford UKAs was performed in 387 patients. Thirty-eight knees (8.1%) were revised to TKA at a mean of 49 months, most commonly for lateral compartment OA (47%). The 5-year cumulative survival using revision to TKA was 98.5%. Revisions required short stems in 26% and augments in 21% of cases. The mobile bearing dislocation rate was 0.64%. Correction of ≥3-5° from the preoperative alignment in a valgus direction was predictive of revision to TKA (P<.0001). Multivariate analysis revealed female gender (P=.002) also was associated with an increased risk of revision. Careful attention to the degree of mechanical axis correction with an overall maintained varus alignment may reduce revision rates for mobile bearing UKA.


Assuntos
Artroplastia do Joelho/métodos , Prótese do Joelho , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Masculino , Próteses Articulares Metal-Metal , Pessoa de Meia-Idade , Osteoartrite do Joelho/cirurgia , Complicações Pós-Operatórias , Desenho de Prótese , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
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