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Purpose: In several sports, appropriate training strategies remain a challenge for athletes and coaches, with the goal of improving performance. Extensive research has proposed several technical tools for obtaining parametric evaluations before competition in real life. This study aimed to assess whether some retinal performances might be improved using psychophysical techniques in health professionals involved in motorcycle sports (FIM MotoE). Methods: Two MotoE drivers were screened at baseline using complete ophthalmological examinations and evaluation of retinal reaction times, followed by a biofeedback training program. After 4 months of training, the subjects underwent a control visit using the same protocol as the baseline. Results: Central reaction time was shorter for 75% of drivers, with a consistent reduction (mean value of 20%). The peripheral reaction time showed an increasing trend after visual training. In both drivers, fixation stability improved dramatically (in 30% increments). Conclusion: The potential role of advanced technology was applied to high-speed drivers. Our results may be due to an attentional shift from the peripheral retina to the central retina during training. In our opinion, training potentiates the most useful pathways at the expense of less involved retinal and cortical areas, thus improving driving abilities and safety.
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OBJECTIVE: Evaluating incidence, characteristics and risk factors of accidents and injuries in each elite motorcycle racing class (MotoGP, Moto2 and Moto3), 2013-2017. DESIGN: Descriptive epidemiological study. SETTING: MotoGP Medical Team, Dorna Sports SL. PARTICIPANTS: Competing riders in elite motorcycling racing classes, 2013-2017. INTERVENTIONS: Benchmarking incidence, characteristics and risk factors of accidents and injuries in each elite motorcycle racing class, 2013-2017. MAIN OUTCOME MEASURES: Association between accident type (by class and year) and fracture, withdrawal from race, need for surgery, injuries (fractures or contusions/wounds) and time riders kept inactive. Circuit and curve, weather conditions, presence and type of fracture, clinical outcome, and time until return to competition. Event outcomes were defined as rider fit/rider unfit after each accident. Racing class, track curves and circuits with the most and fewest accidents, circuit characteristics, speed and deceleration, G-forces, and time race differences between classes. RESULTS: 9092 accidents (mean 1818,4 per year). Most during race and under wet-weather conditions. Class and circuit with most accidents 2013-2017 were Moto3 (3374; 37.11%) and MWC - Marco Simoncelli -with 430.119/9092 accidents resulted in a fracture (1.31%), 83, surgical fractures (70%). Most frequent surgical fractures were upper extremity (clavicular; 29/119; 21%). On average, riders returned to competition after two circuits (1-5 weeks). CONCLUSIONS: Accidents are not uncommon among elite motorcycle riders; incidences of fractures and surgical fractures are low. Factors such as weather conditions and circuit's characteristics influence the risk of accidents. Further research is necessary to clarify the magnitude of the role each of these factors play.
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Resumen En la práctica clínica habitual existe un crecimiento en la demanda asistencial de servicios de urgencias. El dolor cervical es una patología muy frecuente que compete a diversos profesionales sanitarios. El síndrome de apófisis odontoides coronada, es una patología muy poco frecuente, que hace parte del espectro de las enfermedades por microcristales de pirofosfato cálcico, ocasionando una calcificación de ligamentos del proceso de odontoides cervical, llevando a una clínica de cervicalgia, fiebre y rigidez de nuca. Esta patología entra en el diagnóstico diferencial con patologías potencialmente graves. En muchas ocasiones lleva a procedimientos y gastos farmacológicos innecesarios, principalmente por el desconocimiento que la transforma en una patología infradiag-nosticada. (Acta Med Colomb 2018; 43: 230-232).
Abstract In the usual clinical practice there is a growth in the demand for emergency services. Cervical pain is a very common pathology that concerns various health professionals. The crowned den syndrome is a very rare pathology, which is part of the spectrum of microcrystalline diseases of calcium pyrophosphate, causing a calcification of ligaments of the cervical odontoid process, leading to clinical signs of neck pain, fever and neck stiffness. This pathology enters into the differential diagnosis with potentially serious pathologies. In many cases it leads to unnecessary pharmacological procedures and expenses, mainly due to the ignorance that turns it into an infra diagnosed pathology. (Acta Med Colomb 2018; 43: 230-232).
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Humanos , Masculino , Anciano , Huesos , Apófisis Odontoides , Síndrome , Condrocalcinosis , Dolor de CuelloRESUMEN
Resumen Objetivos: Describir y analizar las características clínicas de la insuficiencia cardiaca en el anciano, así mismo, la influencia en la mortalidad según su fracción de eyección ventricular izquierda. Método: Estudio ecológico multigrupo descriptivo en 115 pacientes hospitalizados por la insuficiencia cardiaca aguda con un período de seguimiento de un año. Según la fracción de eyección ventricular izquierda los pacientes se dividieron en dos grupos (fracción de eyección ventricular izquierda preservada y no preservada, si presentaban ≥ 50% o < 50%, respectivamente). Se recogió la tasa de mortalidad al año del alta hospitalaria y se realizó un análisis de Cox de mortalidad. Resultados: La edad media fue de 83,9 años y el 40% fueron hombres. En 76 (66%) pacientes la fracción de eyección ventricular izquierda era preservada. Al año, 35 pacientes (30,4%) fallecieron. En el grupo de la fracción de eyección ventricular izquierda preservada predominaron más las mujeres y presentaron más comorbilidades como: la hipertensión arterial, la diabetes mellitus, la fibrilación auricular y la enfermedad pulmonar obstructiva crónica y por otro lado presentaron menos cardiopatía isquémica. Aunque la mortalidad era mayor en el grupo de la fracción de eyección ventricular izquierda no preservada, no se alcanzaba significación estadística (38,5% vs. 26,3%; p = 0,180). Conclusiones: La mortalidad al año de los pacientes ancianos con insuficiencia cardiaca es alta, así mismo tienen una mayor proporción de la fracción de eyección ventricular izquierda preservada, que a la vez asocia un mayor número de comorbilidades y una tendencia a mayor supervivencia al año con respecto a la fracción de eyección ventricular izquierda no preservada.
Abstract Motivation: To describe and analise the clinical features of heart failure in the elderly, as well as the influence in mortality according to their left ventricular ejection fraction. Method: Ecological multigroup descriptive study in 115 patients who had been hospitalised due to acute heart failure with a one year follow-up period. Depending on their left ventricular ejection fraction, patients were divided into two groups: preserved or non preserved left ventricular ejection fraction, if they showed ≥ 50% or <50%, respectively. Mortality rate one year after discharge was registered and Cox regression model was used for survival analysis. Results: Average age was 83.9 years and 40% were men. The left ventricular ejection fraction was preserved in 76 (66%) of patients. 35 (30.4%) died after one year. The preserved left ventricular ejection fraction group consisted of women predominantly, and they had more comorbidities, such as high blood pressure, diabetes mellitus, atrial fibrillation and chronic obstructive pulmonary disease, whereas their incidence of myocardial ischemia was lower. Despite mortality being higher in the non preserved left ventricular ejection fraction group, statistical significance was not reached (38.5% vs. 26.3%; p = 0.180). Conclusions: Mortality rate after one year of old patients with heart failure is high, and they also have a higher proportion of preserved left ventricular ejection fraction, which in turn is associated to a higher number of comorbidities and a higher tendency to survival after one year in comparison to non preserved left ventricular ejection fraction.