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1.
J Sports Med Phys Fitness ; 56(5): 579-86, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27285346

RESUMO

BACKGROUND: Physical exercise can be part of treatment in patients with chronic fatigue syndrome (CFS), where the aim would be to improve strength and endurance through increasing physical exercise (intensity and time) without aggravating symptomatology. The present study examines the effectiveness of a reconditioning programme (focusing on strength, endurance, balance and propioception) for achieving maximum functional capacity according to the clinical status of CFS patients. METHODS: Sixty-eight patients with CFS were randomly assigned to two groups: a control group (CG) comprising 22 patients and an active group (AG) of 46 patients, the latter being invited to take part in a functional reconditioning programme based on 12 weeks of laboratory training followed by a further 12-week home training period. Functional assessments were as follows: before (I) and after (II) the laboratory training and after (III) the home training. RESULTS: In the AG, 22 patients (67%) completed the intervention (laboratory) stage and 20 finished the whole protocol (61%). Patients in the AG showed improved static and dynamic balance, as well as significantly greater maximum strength (F=7.059, P<0.05). Differences in resistance strength were also observed, with the AG showing a 19.9% improvement between functional assessments I and II (P=0.04). We do not found changes in the CG. CONCLUSIONS: A physical exercise programme of this kind might offer CFS patients the opportunity to improve their strength, balance and quality of life, there being only a very small risk of relapse and none of the adverse effects of other treatments.


Assuntos
Terapia por Exercício/métodos , Síndrome de Fadiga Crônica/terapia , Avaliação de Resultados em Cuidados de Saúde , Adulto , Exercício Físico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida
2.
Arch. med. deporte ; 24(120): 253-261, jul.-ago. 2007. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-86472

RESUMO

Se han estudiado los efectos sobre diversos parámetros hematológicos y de la función renal, de una suplementación con glicerina y una solución hidratante, administrada previamente a la realización de tareas de simulacro de extinción de un fuego forestal en un grupo de once bomberos varones con un buen nivel de forma física. Los sujetos realizaron un primer periodo de hidratación forzada de180 minutos seguido de un periodo de ejercicio. Durante los primeros 30 minutos de hidratación ingirieron 500 ml de solución hidratante, seguido de cinco tomas de 200ml cada 30 minutos. Este mismo protocolo lo repitieron dos veces, uno con la solución hidratante que consistió en 1400 ml de agua con 100 g de glicerina para el grupo experimental (GLI) y otro con sólo 1500 ml de agua para el grupo control (CON). Durante la hora posterior a los dos periodos de hidratación, realizaron tres vueltas a un circuito físico-técnico de simulación de extinción de fuego forestal (desplazamiento cargando una mochila, carrera con mangueras, desplegamiento y recogida de mangueras, entre otras tareas) en un ambiente caluroso (±32ºC y±33% de humedad relativa). Las variables controladas fueron peso, diuresis, hematocrito y rendimiento. Resultados: a) el grupo experimental (GLI) tuvo una menor pérdida depeso después del subsiguiente periodo de ejercicio (CON:2.2 ± 0.8 % kgr, GLI: 1.6 ± 0.6 % kgr; b) La hidratación inducida con glicerina disminuyó muy significativamente la diuresis de los sujetos (CON: 1.5 ± 0.3 L, GLI: 0.85 ±0.3 L, p<0.001); c) No hubo diferencias significativas en el hematocrito entre las dos situaciones experimentales (AU)


The effects of glycerol supplementation in an oral hydration solution previous to firemen tasks (forest fire) have been studied in 11 fit firemen over hematologic parameters and renal function. On two occasions, the subjects completed a 180 minutes period of forced hydration followed by an exercise bout. During the first 30 minutes of hydration, subjects ingested 500 ml of hydrating solution followed by five equal ingestions of 200 ml every 30 minutes. Hydrating solution was 1400 ml of water with 100 g of glycerol for the experimental group (GLY) and 1500 ml of water alone for the control group (CON). Before one hour of the end of hydrating period, subjects completed three laps in a circuit-exercise simulating forest fire extinguishing tasks (walking carry on a backpack, running with sleeves, open out and pick up sleeves and other tasks) in a hot environment (±32ºC and ±33% relative humidity). The controlled variables were weight, diuresis, hematocrit and performance. Results: a) the experimental group (GLY)lost less body weight during the subsequent exercise bout(CON: 2.2 ± 0.8 % kgr, GLY: 1.6 ± 0.6 % kgr; b) Glycerol induced hydration very significantly decreased the subjects diuresis (CON: 1.5 ± 0.3 L, GLY: 0.85 ± 0.3 L, p<0.001);c) Hematocrit was not significantly different between two experimental conditions (AU)


Assuntos
Humanos , Masculino , Adulto , Glicerol/administração & dosagem , Glicerol/metabolismo , Glicerol/uso terapêutico , Desidratação/complicações , Desidratação/diagnóstico , Desidratação/terapia , Bombeiros , Atividade Motora/fisiologia , Exercício Físico/fisiologia , Ácido Láctico/análise , Ácido Láctico/metabolismo , Frequência Cardíaca/fisiologia , Diurese , Diurese/fisiologia
3.
Arch. med. deporte ; 23(112): 127-141, mar.-abr. 2006. ilus
Artigo em Es | IBECS | ID: ibc-044442

RESUMO

La posibilidad que la suplementación con vitamina C a dosis altas, pueda ser útil en la prevención de diversos trastornos de salud fue establecida hace ya tiempo por Pauling. Actualmente, con el descubrimiento de los radicales libres y su importancia como factor patológico, el fuerte carácter antioxidante del ácido ascórbico ha acrecentado y puesto de actualidad este interés. Sus efectos podrían ser especialmente destacables en el ámbito deportivo, por el mayor riesgo de oxidación en especial en el deporte aerobio de larga duración. El flujo de información no cesa de crecer y por ello hemos creído oportuno proceder a una revisión de los aspectos más relevantes en este campo, aportando nuevos datos relativos a la suplementación con vitamina C y sus posibles efectos favorables sobre diversas afecciones de índole cardiovascular, trastornos oculares, enfermedades e infecciones respiratorias, etc. Con relación a su uso como ayuda ergogénica, se discuten los posibles efectos favorables sobre la capacidad aerobia y la fuerza muscular, el daño muscular en el ejercicio excéntrico, el tratamiento de algunas de las manifestaciones de la fatiga y el sobreentrenamiento y una posible mejora en la adaptación hormonal al ejercicio. Por la abundancia de datos y la importancia del tema este trabajo de revisión, se estructura en dos partes, en la primera se revisan las acciones y efectos generales de la vitamina C y la segunda se destina específicamente a valorar los efectos de la suplementación y los distintos esquemas seguidos, sobre el rendimiento deportivo


From Pauling researches several authors have argued potentially favourable actions of supplementation with high doses of vitamin C on health problems. Nowadays, after discovering of free radicals as an important pathological agent, interest has been pointed on ascorbic acid, considering its strong antioxidant effect. This effect could be especially relevant in sport activities, subject to a bigger oxidation risk, mainly in aerobic and endurance sports. Information flux is daily increasing on these aspects and for this reason we think is now seasonable to review the more relevant aspects on this field, considering the new published data relative to vitamin C supplementation and their actions on different health problems as cardiovascular illness, ocular and respiratory disorders, infections, etc. We discuss also its importance and use as anergogenic aid, with possible positive effects on aerobic capacity and muscular strength, muscularnuisance and pain in the eccentric contraction, management of some problems related to fatigue and over training and, as anew concept, better hormonal adaptation to exercise. As data are very relevant and abundant, we have structured this review in two different parts. In this first part, we review general actions and effects of vitamin C, being second part specifically focused on supplementation results and strategies in sports performance


Assuntos
Adulto , Humanos , Esforço Físico/fisiologia , Ácido Ascórbico/administração & dosagem , Ácido Ascórbico/uso terapêutico , Suplementos Nutricionais , Fadiga Muscular/fisiologia , Teste de Esforço/métodos , Teste de Esforço
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