970 resultados para sports injury
Resumo:
The expansion of the specialty of sports and exercise medicine (SEM) is a relatively recent development in the medical community and the role of the SEM specialist continues to evolve and develop. The SEM specialist is ideally placed to care for all aspects of physical activity not only in athletes but also in the general population. As an advocate for physical activity the SEM specialist plays a broad role in advising safe effective sports and recreation participation; screening for disease related to sports participation; examining and contributing to the evidence behind treatment strategies and evaluating any potential negative impact of sports injury prevention measures. In this thesis I will demonstrate the breadth of the role the Sports and Exercise Medicine Specialist from epidemiology to in-depth examination of treatment strategies. In Chapter 2, I examined the epidemiology of sports and recreation related injury (SRI) in Ireland, an area that has previously been poorly studied. We report on 3,172 SRI (14% of total presentations) presentations to the ED over 6 months. Paediatric patients (4-16 yrs) were over represented comprising 39.9% of all SRI presentation compared to 16% of total ED presentations and 18% of the general population. These injuries were serious (32% fractures) and though 49% of injuries occurred during organised competition/practice, 41.5% occurred during recreation-most often at home. In Chapter 3, I examined risk factors associated with hand injury in hurling. The previous chapter highlighted the importance of a firm evidence base underpinning treatment strategies. When measures to improve welfare are introduced not only must potential benefits be measured, so too must potential unwanted adverse outcomes. In this study I examined a cohort of adult hurlers who had presented to the ED with a hurling related injury in order to highlight the variables associated with hand injury in this population. I found the athletes who wore a helmet were far more likely (OR 3.15 95% CI (1.51-6.56) p= 0.002) to suffer a hand injury than athletes who did not. Very few of those interviewed (4.9%) used hand protection compared to 65% who used helmet and faceguard. The introduction of the helmet and faceguard in hurling has undeniably decreased the incidence of head and face injury in hurling. However in tandem with this intervention several observational studies have demonstrated an increase in the occurrence of hurling related hand injuries. This study highlights the importance of being cognisant of unanticipated or unintended consequences when implementing a new treatment or intervention. In Chapter 4, I examined the role of population screening as applied to sport and exercise. This is a controversial area –cardiac screening in the exercising population has been the subject of much debate. Specifically I define the prevalence of exercise induced bronchoconstriction (EIB) using a specifically designed sports specific field-testing protocol. In this study I found almost a third (29%) of a full international professional rugby squad had confirmed asthma or EIB, as compared with 12-15% of the general population. Despite regular medical screening, 5 ‘new’ untreated cases (12%) were elicited by the challenge test and in the group already on treatment for asthma/EIB; over 50% still displayed EIB. In Chapter 5, I examined the evidence supporting current treatment options for iliotibial band friction syndrome (ITBFS). The practice of sports medicine has traditionally been ‘eminence based’ rather than ‘evidence based’. This may be problematic as some of these practices are based upon flawed principles- for example the treatment of iliotibial band friction syndrome (ITBFS). In this chapter, using cadaveric and biomechanical studies I expand upon the growing base of evidence clarifying the anatomy and biomechanics of the area-thereby re-examining the principles on which current treatments are based. The role of the SEM specialist is broad; we chose to examine specific examples of some of the roles that they execute. An understanding of the epidemiology of SRI presenting to the ED has implications for individual patients, sports governing bodies and health resource utilisation. Population screening is an important tool in health promotion and disease prevention in the general population. Screening in SEM may have similar less well-recognised benefits. The SEM specialist needs to be conversant in screening for medical conditions concerning physical activity. A comprehensive understanding of the pathophysiology of a disease is required for its diagnosis and treatment. Due to the ongoing evolution of SEM many treatments are eminence-based rather than evidence‐based practice. Continued re-examination of the fundamentals of current practice is essential. An awareness of potential unwanted side effects is essential prior to the introduction of any new treatment or intervention. The SEM specialist is ideally placed to advise sports governing bodies on these issues prior to and during their implementation.
Resumo:
Introdução: No atletismo existe uma prevalência de lesões e sintomas de sobrecarga, havendo a possibilidade de monitorizar o início e a evolução das mesmas. Objetivos: Traduzir, validar e aplicar o Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O) a atletas de atletismo. Metodologia: O questionário OSTRC-O foi traduzido para português e aplicado por e-mail semanalmente (durante 7 semanas) a um grupo de atletas (n=23), verificando em que medida o esforço/sobrecarga a que estão sujeitos em duas regiões anatómicas específicas (anca e coxa) poderá afectar o seu rendimento e/ou mesmo ser alvo de lesão desportiva. Resultados/Discussão: A prevalência média de lesões de sobrecarga para todos os atletas, em qualquer área anatómica foi de 44,0% (95% IC 35-53). A prevalência média de lesões de sobrecarga substanciais, problemas que causam moderada/severa redução no volume de treino ou performance desportiva ou, completa incapacidade de participar em treino ou competição foi de 13,7% (95% IC 7-19). Não obstante os sintomas de sobrecarga serem prevalentes nas duas áreas, a prevalência semanal de problemas de sobrecarga foi maior na coxa (40%) do que na anca (15%) Conclusões: O OSTRC-O permitirá basear-nos na limitação da funcionalidade e não no tempo de paragem dos atletas, oferecendo a possibilidade de um controlo semanal mais real. Neste estudo sobre atletismo a prevalência média semanal de lesões de sobrecarga na coxa (40%) foi maior do que a prevalência semanal de lesões de sobrecarga na anca (15%).
Resumo:
Universidade Estadual de Campinas . Faculdade de Educação Física
Resumo:
Introdução: No futebol, as lesões são da mais fulcral importância pelo que a sua prevenção se revela de extrema pertinência. A FIFA criou o FIFA 11+, um programa de prevenção de lesões, que revelou resultados positivos em equipas jovens tanto femininas como masculinas. No entanto, em Portugal, os resultados da sua implementação são escassos, principalmente em camadas jovens. Objetivo: Estudar a eficácia do programa FIFA 11+ na prevenção de lesões em atletas de futebol – sub 18. Métodos: O presente estudo quasi experimental teve como amostra uma equipa de 24 atletas, divididos voluntariamente em 2 grupos: o grupo experimental (GE) (n=12), e o grupo controlo (GC) (n= 12). Ambos os grupos realizaram os treinos normais sendo o grupo experimental sujeito adicionalmente ao programa FIFA 11+ duas vezes por semana, durante 12 semanas. Foi utilizado ainda o Orchard Sports Injury Classification System (OSICS-10) como sistema de classificação de lesões, sendo estas divididas em graves, moderadas, leves e mínimas. O teste Mann-Whitney foi utilizado para a comparação entre grupos, e o teste de Wilcoxon para a comparação intra grupo. Resultados: Quando comparados o GE com o GC em M0 não se observaram diferenças estatisticamente significativas (p=0.065), no número de lesões entre os grupos. O mesmo se verificou após a implementação do programa FIFA 11+ (p=1,000). Na comparação intra-grupo de M0 e M1 o grupo controlo não apresentou diferenças estatisticamente significativas (p=0,317) enquanto que no grupo experimental se observou que existiam significativamente menos lesões após a implementação do programa. (p=0,025). Conclusão: O programa FIFA 11+ parece ser indicado para a prevenção e diminuição de lesões desportivas em jogadores amadores de equipas sub-18, quando aplicado duas vezes por semana. Apesar disso, para eleger o programa como uma ferramenta de eleição na promoção da saúde, mais estudos são sugeridos utilizando uma amostra maior e se possível num período superior.
Resumo:
The aim of the present study was to empirically determine whether: (a) sport injuries were associated with alcohol consumption before the injury (acute intake) and with usual consumption patterns (chronic high intake and heavy intake on single occasions); (b) the risk of sport injuries related to alcohol consumption differs from that of other injuries; and (c) there are differences between the sexes and between types of sport. Data from 8694 patients attending the emergency department of Lausanne University Hospital between 1 January 2003 and 30 June 2004 were analysed. Of those patients, 4861 came to the hospital because of an injury and 885 patients were identified as having a sport injury (18.2%). Logistic regression was used to estimate the odds ratios of injury relating to alcohol consumption. With increasingly acute intake, the risk of sport and other injuries increased (sports injury and alcohol use in the 6 h before injury compared with no use: odds ratio=4.29, 7.46, and 14.75 for low, medium, and high alcohol use among women, and 2.81, 3.39, and 1.64 for low, medium, and high alcohol use among men). Alcohol consumption was associated with an increasingly higher risk of sport injuries compared with other injuries among women (consumption 6 h before injury: odds ratio=1.12, 1.23, and 1.56 for low, medium, and high alcohol use), but not men (odds ratio=1.17, 0.83, and 0.23 for low, medium, and high alcohol use). Regarding usual consumption patterns, those men and women injured while exercising were more often at-risk drinkers (men: 44%; women: 25%) compared with those injured during other activities (men: 37%; women: 13%). The results indicate that both men and women, but particularly women, should not practise sports after alcohol ingestion. The study raises questions as to whether sport should be generally promoted as an alternative to alcohol consumption in prevention programmes. Whereas some sports seem to be protective (e.g. endurance and fitness sport) for risky alcohol use, the majority are not. It is important to note, however, that we do not dismiss the beneficial effects of practising for an individual's health. The other positive aspect of practising, namely interacting socially with others, may come at the price of an increased alcohol use, particularly in a wet culture like Switzerland where any social contact is often accompanied by alcohol consumption.
Resumo:
OBJECTIVE: Our purpose was to assess 4th year radiology residents' perception of the optimal imaging modality to investigate neoplasm and trauma. MATERIALS AND METHODS: Twenty-seven 4th year radiology residents from four residency programs were surveyed. They were asked about the best imaging modality to evaluate the brain and spine, lungs, abdomen, and the musculoskeletal system. Imaging modalities available were MRI, CT, ultrasound, PET, and X-ray. All findings were compared to the ACR appropriateness criteria. RESULTS: MRI was chosen as the best imaging modality to evaluate brain, spine, abdominal, and musculoskeletal neoplasm in 96.3%, 100%, 70.4%, and 63% of residents, respectively. CT was chosen by 88.9% to evaluate neoplasm of the lung. Optimal imaging modality to evaluate trauma was CT for brain injuries (100%), spine (92.6%), lung (96.3%), abdomen (92.6%), and major musculoskeletal trauma (74.1%); MRI was chosen for sports injury (96.3%). There was agreement with ACR appropriateness criteria. CONCLUSION: Residents' perception of the best imaging modalities for neoplasm and trauma concurred with the appropriateness criteria by the ACR.
Resumo:
A sprained ankle is a common musculoskeletal sports injury and it is often treated by immobilization of the joint. Despite the beneficial effects of this therapeutic measure, the high prevalence of residual symptoms affects the quality of life, and remobilization of the joint can reverse this situation. The aim of this study was to analyze the effects of immobilization and remobilization on the ankle joint of Wistar rats. Eighteen male rats had their right hindlimb immobilized for 15 days, and were divided into the following groups: G1, immobilized; G2, remobilized freely for 14 days; and G3, remobilized by swimming and jumping in water for 14 days, performed on alternate days, with progression of time and a series of exercises. The contralateral limb was the control. After the experimental period, the ankle joints were processed for microscopic analysis. Histomorphometry did not show any significant differences between the control and immobilized/remobilized groups and members, in terms of number of chondrocytes and thickness of the articular cartilage of the tibia and talus. Morphological analysis of animals from G1 showed significant degenerative lesions in the talus, such as exposure of the subchondral bone, flocculation, and cracks between the anterior and mid-regions of the articular cartilage and the synovial membrane. Remobilization by therapeutic exercise in water led to recovery in the articular cartilage and synovial membrane of the ankle joint when compared with free remobilization, and it was shown to be an effective therapeutic measure in the recovery of the ankle joint.
Resumo:
The patellofemoral pain syndrome (PFPS) is defined as a retropatellar or anterior knee pain, without another disease. It affects until 25% of the population, being more common in women and trained persons. As others pathologies, PFPS have been affected the training of elite and amateurs athletes. Thereby, the general purpose of this study was discuss the occurrence of PFPS as a sports injury, there prevention possibilities and the appropriate recovery training after injury. It had been developed a literature review addressing the specific characteristics of the syndrome, its diagnosis, its target population, its development, how it affects the training and which are their possibilities of prevention and treatment. © FTCD/FIP-MOC.
Resumo:
La práctica de actividad física y del deporte ha dado muestras indiscutibles sobre su relación con un buen estado de salud, tanto mental como corporal. Sin embargo, también entraña riesgos que pueden mermar la calidad de vida del practicante, siendo uno de los más comunes e importantes el riesgo de sufrir una lesión deportiva. Actualmente, se han dado respuesta a los factores de riesgo internos y externos que pueden afectar a que un deportista, tanto a nivel profesional como recreativo, pueda sufrir una lesión, pero pocos estudios se han realizado para evaluar la incidencia, la prevalencia y la severidad de las lesiones, en personas sedentarias con sobrepeso y obesidad que deciden comenzar a entrenar y/o a realizar actividad física. Incluso en aquellos casos que por razones clínicas, deben incluir el ejercicio físico como una parte integral del tratamiento terapéutico. Por lo tanto, el objetivo del estudio fue analizar la incidencia, prevalencia y severidad de las lesiones deportivas registradas en los protocolos de entrenamiento desarrollados durante el proyecto de Nutrición y Actividad Física para el tratamiento del sobrepeso y la obesidad (PRONAF). Se realizó un análisis descriptivo y se evaluó el efecto y el grado de asociación entre la incidencia de lesión y la composición corporal, el sexo o el protocolo de entrenamiento. Por otro lado, se observó la localización anatómica más común de las lesiones en cada una de las fases. Por último, se propuso una ecuación para estimar el riesgo de lesión en sujetos en sobrepeso y obesidad, antes de comenzar un programa de ejercicio controlado. Un total de 167 adultos con sobrepeso y obesidad sanos (77 hombres, 90 mujeres) fueron evaluados durante el proyecto mediante un registro de lesiones previamente validado. Los principales resultados de este trabajo mostraron que un 47,3% de los participantes sufrió, al menos, una lesión o dolencia durante el programa de intervención, observando una incidencia de 1,22 lesiones por cada 100 horas de entrenamiento. No obstante, se observó que el 80,2% de las lesiones fueron menores (de 1 a 7 días). La rodilla fue la localización que mayor proporción de lesiones registró durante la intervención. Por otro lado, no se observaron asociaciones significativas entre la fase de sobrepeso y la fase de obesidad, ni entre ser hombre o mujer y sufrir más lesiones durante la intervención. Sin embargo, los protocolos de entrenamiento que incluyen cargas, mostraron hasta cinco veces más riesgo de sufrir una lesión que el protocolo que no las incluyó. Por último, se propuso una ecuación para predecir la influencia de las variables fase, lesión previa, protocolo de entrenamiento, sexo y edad para predecir el riesgo de lesión en una población con sobrepeso y obesidad que incluya los protocolos de entrenamiento propuestos en el proyecto PRONAF. ABSTRACT The practice of physical activity and sport has indisputable signs on his relationship with a good health, both mental and physical. However, it is true that also risks that may impair the quality of life of the practitioner, one of the most common and important risk of sports injury. However, although they have responded to factors internal and external risks that may affect an athlete, both professional and recreational may suffer an injury, few studies have been conducted to assess the incidence and prevalence of injuries in sedentary people who decide to start training and / or physical activity. Even in those cases for clinical reasons, such as overweight and obesity, should include exercise as an integral part of therapy. Therefore, the aim of the study was to analyze the incidence, prevalence and severity of sports injuries registered training protocols developed during the project's Nutrition and Physical Activity for the treatment of overweight and obesity (PRONAF). A descriptive analysis was performed and the effect and the degree of association between the incidence of injury and body composition, sex or training protocol was evaluated. Furthermore, the most common anatomical injury location in each of the phases were observed. Finally, an equation for estimating the risk of injury in overweight and obese subjects, before starting a controlled exercise program was proposed A total of 167 healthy adults with overweight and obesity (77 men, 90 women) were evaluated during the project using a previously validated record injuries. The main results of this study showed that 47.3% of participants experienced at least one injury or illness during the intervention program, having an incidence of 1.22 injuries per 100 hours of training. However, it was observed that 80.2% of injuries were lower (1 to 7 days). Knee location was higher proportion of lesions that recorded during the procedure. On the other hand, no significant associations between the phase of overweight and obesity were observed phase or between being male or female and further injury during project. However, training protocols that included loads, showed up to five times the risk of injury to the protocol did not include them. Finally, an equation was proposed to predict the influence of the phase, previous injury, training protocol, sex and age to observe the risk of injury in a population of overweight and obesity with includes the training protocols proposed in the PRONAF project.
Resumo:
Objective: To evaluate the protective eyewear promotion ( PEP) project, which was a comprehensive educational strategy to increase the use of appropriate protective eyewear by squash players. Methods: An ecological study design was used. Four squash venues in one playing association were randomly chosen to receive PEP and four in another association maintained usual practice and hence formed a control group. The primary evaluation measurements were surveys of cross sectional samples of players carried out before and after the intervention. The surveys investigated players' knowledge, behaviours, and attitudes associated with the use of protective eyewear. The survey carried out after the intervention also determined players' exposure to PEP. Univariate and multivariate analyses were undertaken to describe differences at PEP venues from pre- to post-intervention and to compare these with the control venues. Results: The PEP players had 2.4 times the odds (95% confidence interval, 1.3 to 4.2) of wearing appropriate eyewear compared with control group players post-intervention, relative to the groups' preintervention baselines. Components of PEP, such as stickers and posters and the availability and prominent positioning of the project eyewear, were found to contribute to players adopting favourable eyewear behaviours. Conclusions: Components of the PEP intervention were shown to be effective. The true success will be the sustainability and dissemination of the project, favourable eyewear behaviours, and evidence of the prevention of eye injuries long into the future.
Resumo:
PROGNOSTIC FACTORS PREDICTING FUNCTIONAL OUTCOME AT FOUR MONTHS FOLLOWING ACUTE ANKLE SPRAINBleakley C.M.1, O'Connor S.R.1, Tully M.A.2, Rocke L.G.3, MacAuley D.C.1, Bradbury I.4, Keegan S.4, McDonough S.M.11University of Ulster, Health & Rehabilitation Sciences Research Institute, Newtownabbey, United Kingdom, 2Queen's University, UKCRC Centre of Excellence for Public Health (NI), Belfast, United Kingdom, 3Royal Victoria Hospital, Department of Emergency Medicine, Belfast, United Kingdom, 4Frontier Science (Scotland), Kincraig, Inverness-shire, United KingdomPurpose: To identify clinically relevant factors assessed following acute ankle sprain that predict functional recovery at four months post-injury.Relevance: Ankle sprains are one of the most common musculoskeletal injuries with an estimated 5000 new cases occurring each day in the United Kingdom. In the acute phase, ankle sprains may be associated with pain and loss of function. In the longer-term there is a risk of residual problems including chronic pain or reinjury. Few studies have sought to examine factors associated with a poor long-term prognosis.Participants: 101 patients (Age: Mean (SD) 25.9 (7.9) years; Body Mass Index (BMI): 25.3 (3.5) kg/m2) with an acute grade 1 or 2 ankle sprain attending an accident and emergency department or sports injury clinic. Exclusion criteria included complete (grade 3) rupture of the ankle ligament complex, bony ankle injury or multiple injuries.Methods: Participants were allocated as part of a randomised controlled trial to an accelerated intervention incorporating intermittent ice and early therapeutic exercise or a standard protection, rest, ice, compression, and elevation intervention for one week. Treatment was then standardised in both groups and consisted of ankle rehabilitation exercises focusing on muscle strengthening, neuromuscular training, and sports specific functional exercises for a period of approximately four to six weeks. On initial assessment age, gender, mechanism of injury, presence of an audible pop or snap and the presence of contact during the injury were recorded. The following factors were also recorded at baseline and at one and four weeks post-injury: weight-bearing dorsi-flexion test, lateral hop test, presence of medial pain on palpation and a positive impingement sign. Functional status was assessed using the Karlsson score at baseline, at week four and at four months. Reinjury rates were recorded throughout the intervention phase and at four months.Analysis: A mixed between-within subjects analysis of variance (ANOVA) was used to determine the effect of each factor on functional status at week four and at four months. Significance was set at a Bonferroni adjusted level of 0.0125 (0.05/4).Results: Eighty-five participants (84%) were available at final follow-up assessment. Pain on weight-bearing dorsi-flexion and lateral hop tests at week four were both associated with a lower functional score at four months post-injury (P = 0.011 and P = 0.001). No other significant interactions were observed at any other timepoint (baseline or week one). There were only two reinjuries within the four month follow-up period with a further two reported at approximately six months post-injury. We were therefore unable to determine whether any factors were associated with an increased risk of reinjury.Conclusions: Potential prognostic factors on initial or early examination after acute ankle sprain did not help predict functional recovery at four months post-injury. However, pain on weight-bearing dorsi-flexion and lateral hop tests observed at four weeks were associated with a slower rate of recovery.Implications: Some clinical tests may help identify patients at risk of poor functional recovery after acute ankle sprain. However, further work is required to examine factors which may be predictive on initial assessment.Key-words: 1. Prognostic factors 2. Recovery 3. Ankle sprainFunding acknowledgements: Physiotherapy Research Foundation, Chartered Society of Physiotherapy, Strategic Priority Fund; Department of Employment and Learning, Northern Ireland.Ethics approval: Office for Research Ethics Committee (UK).
Resumo:
OBJECTIVE: To compare an accelerated intervention incorporating early therapeutic exercise after acute ankle sprains with a standard protection, rest, ice, compression, and elevation intervention.
DESIGN: Randomised controlled trial with blinded outcome assessor.
SETTING: Accident and emergency department and university based sports injury clinic.
PARTICIPANTS: 101 patients with an acute grade 1 or 2 ankle sprain.
INTERVENTIONS: Participants were randomised to an accelerated intervention with early therapeutic exercise (exercise group) or a standard protection, rest, ice, compression, and elevation intervention (standard group).
MAIN OUTCOME MEASURES: The primary outcome was subjective ankle function (lower extremity functional scale). Secondary outcomes were pain at rest and on activity, swelling, and physical activity at baseline and at one, two, three, and four weeks after injury. Ankle function and rate of reinjury were assessed at 16 weeks.
RESULTS: An overall treatment effect was in favour of the exercise group (P=0.0077); this was significant at both week 1 (baseline adjusted difference in treatment 5.28, 98.75% confidence interval 0.31 to 10.26; P=0.008) and week 2 (4.92, 0.27 to 9.57; P=0.0083). Activity level was significantly higher in the exercise group as measured by time spent walking (1.2 hours, 95% confidence interval 0.9 to 1.4 v 1.6, 1.3 to 1.9), step count (5621 steps, 95% confidence interval 4399 to 6843 v 7886, 6357 to 9416), and time spent in light intensity activity (53 minutes, 95% confidence interval 44 to 60 v 76, 58 to 95). The groups did not differ at any other time point for pain at rest, pain on activity, or swelling. The reinjury rate was 4% (two in each group).
CONCLUSION: An accelerated exercise protocol during the first week after ankle sprain improved ankle function; the group receiving this intervention was more active during that week than the group receiving standard care.
TRIAL REGISTRATION: Current Controlled Trials ISRCTN13903946.
Resumo:
The determination of aetiological factors in sports injuries is challenging. Recently, investigators have devoted significant attention to this topic. A reasonable amount of studies provides information on the occurrence, aetiology, and severity of golf-related injuries. However, gaps of evidence still limit the understanding of the injury problem in golf and the comparability of epidemiological findings. Observational studies using surveys and medical records were reviewed. Surveys are suited to find precise occurrence patterns of golf-related injuries, but fail to adequately ascertain the levels of exposure and aetiological factors. Due to the proximity to the injury event, medical records are able to clearly identify the aetiology and severity of golf-related injuries. While reviewing observational studies using surveys a comment was provided on the methodological quality and risk of bias. Overall, these studies seem to be disturbed on their ability to produce generalizations and comparison of study findings. With the information obtained from reviewing observational studies and the collaboration of a panel of internationally recognised experts on golf science and sports injury research, a web-based bilingual questionnaire was developed and tested for one of the provided languages. The bilingual nature of the questionnaire is also expected to facilitate the acceptance of the scientific community and enable the translation to different languages. A standardised questionnaire applied in different cultural contexts is expected to help and further improve the comparability of epidemiological findings. The questionnaire was proficient in capturing information on golf-related injuries and participation habits of golfers. While using a wider outcome definition focusing on any type of physical complaints, episodes of injury could be recognized despite onset and level of severity. Questions on the need for medical attention, time loss, and impact on performance also enabled additional categorisation of severity.
Resumo:
Although employees are encouraged to take exercise after work to keep physically fit, they should not suffer injury. Some sports injuries that occur after work appear to be work-related and preventable. This study investigated whether cognitive failure mediates the influence of mental work demands and conscientiousness on risk-taking and risky and unaware behaviour during after-work sports activities. Participants were 129 employees (36% female) who regularly took part in team sports after work. A structural equation model showed that work-related cognitive failure significantly mediated the influence of mental work demands on risky behaviour during sports (p < .05) and also mediated the directional link between conscientiousness and risky behaviour during sports (p < .05). A path from risky behaviour during sports to sports injuries in the last four weeks was also significant (p < .05). Performance constraints, time pressure, and task uncertainty are likely to increase cognitive load and thereby boost cognitive failures both during work and sports activities after work. Some sports injuries after work could be prevented by addressing the issue of work redesign.
Resumo:
This paper reports a follow-up study to an article on the sensitivity of three tests of speed of information processing to impairment after concussion (Hinton-Bayre, Geffen, BL McFarland, 1997). Group analyses showed that practice effects can obscure the effects of concussion on information processing, thereby making the assessment of functional impairment and recovery after injury unreliable. A Reliable Change Index (RCI) was used to assess individual variations following concussion. It was found that 16 of the 20 concussed professional rugby league players were impaired 1-3 days following injury. It was also demonstrated that 7 players still displayed cognitive deficits at 1-2 weeks, before returning to preseason levels at 3-5 weeks. The RCI permits comparisons between different tests, players, and repeated assessments, thereby providing a quantitative basis for decisions regarding return to play.