Comparison of the bilateral deficit in muscular power of soccer players and students

El déficit bilateral (DBL) corresponde a la disminución de fuerza en las acciones musculares bilaterales en comparación a la suma de las acciones unilaterales. Conocer el DBL podría ayudar a evaluar la capacidad neuromuscular de los deportistas. El objetivo de este trabajo es comparar el DBL en altura de salto y potencia de miembros inferiores entre futbolistas profesionales y estudiantes universitarios. Fueron evaluados saltos con contra movimiento y uso de brazos tipo Abalakov (ABK) en modalidad unipodal y bipodal, obteniendo la altura máxima saltada y la potencia estimada, para luego determinar DBL. Se observó en estudiantes altura de salto bilateral de 38,6 cm y unilateral derecha-izquierda 20,6 -20,9 cm respectivamente (DBL de -7.8%). En futbolistas no existe DBL (5.6%) con una altura de salto bilateral 39,1cm y unilaterales 17,8-19,2 cm, existiendo diferencia entre los grupos (p<0.05). Para la potencia, se observó DBL en ambos grupos, estudiantes -45.5% con una potencia bilateral de 3.430 vatios y unilaterales de 2.496 y 2514 vatios. Los futbolistas presentaron DBL -37.7% con una potencia bilateral de 3.431vatios y unilaterales de 2.328 y 2400 vatios. Existiendo diferencias entre ambos grupos (p<0.05). Se concluye que los futbolistas profesionales no presentan déficit bilateral en altura de salto y presentan menor déficit bilateral en potencia estimada en comparación a estudiantes universitarios

Efecto del entrenamiento con oclusión vascular sobre la potencia muscular en el ejercicio de press banca en adultos entrenados

Introducción: El entrenamiento con oclusión vascular (EOV), combina ejercicio y reducción parcial del flujo sanguíneo con efectos positivos sobre el desarrollo de la hipertrofia muscular. Sin embargo, sigue habiendo una marcada inconsistencia en los efectos que genera sobre el desarrollo de la potencia muscular. Objetivo: Analizar el efecto del entrenamiento de oclusión vascular en la potencia muscular extremidades superiores de adultos entrenados. Métodos: Estudio cuasi-experimental la muestra la conformaron 12 sujetos, edad promedio 28 (± 1,3) años. Muestreo intencional, no probabilístico. Divididos en dos grupos; i) grupo intervenido (n=6), que realizó un protocolo de EOV al 30% de 1 repetición máxima (1RM); ii) grupo entrenamiento tradicional (n=6), realizó un entrenamiento al 70% de 1RM. Cada grupo realizó 12 sesiones de entrenamiento de press de banca. Resultados: El EOV, aumentó la potencia media (p =0,01); concéntrica (p = 0,04) y excéntrica (p =0,01). Conclusión: 12 sesiones de entrenamiento de fuerza muscular de baja carga con oclusión vascular mejoran de la potencia muscular de las extremidades superiores en el ejercicio de press banca en una muestra de adultos entrenados

Feasibility of AmbulanCe-Based Telemedicine (FACT) Study:Safety, Feasibility and Reliability of Third Generation Ambulance Telemedicine

Telemedicine is currently mainly applied as an in-hospital service, but this technology also holds potential to improve emergency care in the prehospital arena. We report on the safety, feasibility and reliability of in-ambulance teleconsultation using a telemedicine system of the third generation.A routine ambulance was equipped with a system for real-time bidirectional audio-video communication, automated transmission of vital parameters, glycemia and electronic patient identification. All patients ( ≥ 18 years) transported during emergency missions by a Prehospital Intervention Team of the Universitair Ziekenhuis Brussel were eligible for inclusion. To guarantee mobility and to facilitate 24/7 availability, the teleconsultants used lightweight laptop computers to access a dedicated telemedicine platform, which also provided functionalities for neurological assessment, electronic reporting and prehospital notification of the in-hospital team. Key registrations included any safety issue, mobile connectivity, communication of patient information, audiovisual quality, user-friendliness and accuracy of the prehospital diagnosis.Prehospital teleconsultation was obtained in 41 out of 43 cases (95.3%). The success rates for communication of blood pressure, heart rate, blood oxygen saturation, glycemia, and electronic patient identification were 78.7%, 84.8%, 80.6%, 64.0%, and 84.2%. A preliminary prehospital diagnosis was formulated in 90.2%, with satisfactory agreement with final in-hospital diagnoses. Communication of a prehospital report to the in-hospital team was successful in 94.7% and prenotification of the in-hospital team via SMS in 90.2%. Failures resulted mainly from limited mobile connectivity and to a lesser extent from software, hardware or human error. The user acceptance was high.Ambulance-based telemedicine of the third generation is safe, feasible and reliable but further research and development, especially with regard to high speed broadband access, is needed before this approach can be implemented in daily practice

Development and Pilot Testing of 24/7 In-Ambulance Telemedicine for Acute Stroke:Prehospital Stroke Study at the Universitair Ziekenhuis Brussel-Project

Background: In-ambulance telemedicine is a recently developed and a promising approach to improve emergency care. We implemented the first ever 24/7 in-ambulance telemedicine service for acute stroke. We report on our experiences with the development and pilot testing of the Prehospital Stroke Study at the Universitair Ziekenhuis Brussel (PreSSUB) to facilitate a wider spread of the knowledge regarding this technique. Methods: Successful execution of the project involved the development and validation of a novel stroke scale, design and creation of specific hardware and software solutions, execution of field tests for mobile internet connectivity, design of new care processes and information flows, recurrent training of all professional caregivers involved in acute stroke management, extensive testing on healthy volunteers, organisation of a 24/7 teleconsultation service by trained stroke experts and 24/7 technical support, and resolution of several legal issues. Results: In all, it took 41 months of research and development to confirm the safety, technical feasibility, reliability, and user acceptance of the PreSSUB approach. Stroke-specific key information can be collected safely and reliably before and during ambulance transportation and can adequately be communicated with the inhospital team awaiting the patient. Conclusion: This paper portrays the key steps required and the lessons learned for successful implementation of a 24/7 expert telemedicine service supporting patients with acute stroke during ambulance transportation to the hospital. (C) 2016 S. Karger AG, Base

Mobilization, transport and oxidation of fatty acids: physiological mechanisms associated with weight loss

Objetivo: presentar evidencia actualizada sobre los procesos fisiológicos de movilización, transporte y oxidación de ácidos grasos, mecanismos asociados a la intensidad del ejercicio físico para la pérdida de peso. Materiales y métodos: se realizó una búsqueda en PubMed, Cochrane, Scielo, LILACS, ScienceDirect con las palabras obesidad, lipolisis y ejercicio físico. Resultados: el ejercicio físico constante con variaciones en las intensidades de entrenamiento, generan respuestas fisiológicas que permiten adaptarse al estímulo entregado, facilitando el metabolismo energético de los ácidos grasos. Conclusiones: los cambios fisiológicos que genera el ejercicio físico con cambios de intensidades dentro de una misma sesión, generan efectos benéficos para mantener la pérdida de peso a largo plazo.Objective: present updated evidence on the physiological process of mobilization, transport and oxidation of fatty acids, mechanisms associated with the intensity of physical exercise for weight loss. Methods: a search was made in PubMed, Cochrane, Scielo, LILACS, ScienceDirect with the words obesity, lipolysis and physical exercise. Results: constant physical exercise with variations in training intensities, physiological responses that can allow the stimulus delivered, facilitating the energy metabolism of fatty acids. Conclusions: the physiological changes generated by physical exercise with intensity changes within the same session, the beneficial effects to maintain weight loss in the long term

Prehospital Stroke Care:Limitations of Current Interventions and Focus on New Developments

Background: The global burden of stroke is immense, both in medical and economic terms. With the aging population and the ongoing industrialization of the third world, stroke prevalence is expected to increase and will have a major effect on national health expenditures. Currently, the medical treatment for acute ischemic stroke is limited to intravenous recombinant tissue plasminogen activator (IV r-tPA), but its time dependency leads to low utilization rates in routine clinical practice. Prehospital delay contributes significantly to delayed or missed treatment opportunities in acute stroke. State-of-the-art acute stroke care, starting in the pre-hospital phase, could thereby reduce the disease burden and its enormous financial costs. Summary: The first part of this review focuses on current education measures for the general public, the emergency medical services (EMS) dispatchers and paramedics. Although much has been expected of these measures to improve stroke care, no major effects on prehospital delay or missed treatment opportunities have been demonstrated over the years. Most interventional studies showed little or no effect on the onset-to-door time, IV r-tPA utilization rates or outcome, except for prenotification of the receiving hospital by the EMS. No data are currently available on the cost-effectiveness of these commonly used measures. In the second part, we discuss new developments for the improvement of prehospital stroke diagnosis and treatment which could open new perspectives in the nearby future. These include the implementation of prehospital telestroke and the deployment of mobile stroke units. These approaches may improve patient care and could serve as a platform for prehospital clinical trials. Other opportunities include the implementation of noninvasive diagnostics (like transcranial ultrasound and blood-borne biomarkers) and the reevaluation of neuroprotective strategies in the prehospital phase. Key Messages: Timely initiation of treatment can effectively reduce the medical and economic burden of stroke and should begin with optimal prehospital stroke care. For this, prehospital telemedicine is a particularly attractive approach because it is a scalable solution that has the potential to rapidly optimize acute stroke care at limited cost. (C) 2014 S. Karger AG, Base

Prehospital Unassisted Assessment of Stroke Severity Using Telemedicine A Feasibility Study

<p>Background and Purpose We evaluated the feasibility and the reliability of remote stroke severity quantification in the prehospital setting using the Unassisted TeleStroke Scale (UTSS) via a telestroke ambulance system and a fourth-generation mobile network.</p><p>Methods The technical feasibility and the reliability of the UTSS were studied in healthy volunteers mimicking 41 stroke syndromes during ambulance transportation.</p><p>Results Except for 1 issue, high-quality telestroke assessment was feasible in all scenarios. The mean examination time for the UTSS was 3.1 minutes (SD, 0.4). The UTSS showed excellent intrarater and interrater variability (=0.98 and 0.97; P</p><p>Conclusions Remote assessment of stroke severity in fast-moving ambulances using a system dedicated to prehospital telemedicine, 4G technology, and the UTSS is feasible and reliable.</p>