ABSTRACT
IntroducciónEl objetivo del estudio fue evaluar los parámetros cardiorrespiratorios en condiciones de reposo y la respuesta durante ejercicio físico a muy baja intensidad en mujeres con síndrome de fatiga crónica (SFC).Material y métodosUn grupo de 141 mujeres afectadas por el SFC se comparó con un grupo control (C) de 20 mujeres en condiciones de reposo y durante 4min de ejercicio constante en un cicloergómetro sin carga de trabajo (carga de trabajo=0 W).ResultadosSe encontraron diferencias significativas durante el ejercicio: el cociente respiratorio (SFC=0,9±0,09, C=0,8±0,08; p<0,05), equivalente respiratorio para el oxígeno (SFC=34,6±10,1, C=28,0±3,4; p<0,01) y el dióxido de carbono (SFC=37,9±7,7; C=33,4±3,8; p=0,01). Se observaron diferencias en la frecuencia cardíaca durante el período de descanso (SFC=86,8±14,2 lpm−1, C=79,8±8,4lpm−1; p=0,03). No hubo diferencias significativas en la percepción del esfuerzo realizado durante el descanso (SFC=10,3±3,0, C=6,2±0,6; p<0,001) y justo después del ejercicio (SFC=12,5±2,8, C=6,8±1,4; p<0,01).ConclusionesSe concluye que las mujeres con SFC tienen menos eficiencia ventilatoria que las del C durante el esfuerzo físico a baja intensidad. Este aspecto podría ser mejorado a través de programas específicos de rehabilitación(AU)
IntroductionThe aim of the study was to evaluate the cardiorespiratory parameters at rest and and as the response to very low intensity physical exercise in women with chronic fatigue syndrome (CFS).Material and methodsA group of 141 women suffering from chronic fatigue synrdrome (CFS) were compared with a control group (C) of 20 women while at rest and during 4 minutes of constant exercise on a cycloergometer with no work load (work load=0 watts).ResultsSignificant differences were found during the exercise: respiratory quotient (CFS=0.9±0.09, C=0.8±0.08, p<0.05); the respiratory equivalent for oxygen (CFS=34.6±10.1, C=28.0±3.4, p<0.01) and for carbon dioxide (CFS=37.9±7.7, C=33.4±3.8, p=0.01). Differences were observed in the heart rate during the rest period (CFS=86,8±14,2 beatsmin−1, C=79.8±8.4 beatsmin−1, p=0.03). There were no significant differences in the perception of effort made during rest (CFS=10.3±3.0. C=6.2±0.6, p<0.001) and just after exercise (CFS=12.5±2.8, C=6.8±1.4, p<0.01).ConclusionsIt was concluded that women with chronic fatigue syndrome had less ventilatory efficiency than the controls during low intensity physical exercise. This condition could be improved through specific rehabilitation programs(AU)
Subject(s)
Humans , Female , Fatigue Syndrome, Chronic/therapy , Exercise Therapy/methods , Exercise Tolerance/physiology , Breath Tests/methodsABSTRACT
This study describes the results of a survey of the resistance training practices of the following Spanish sports teams: soccer and basketball professional leagues, and top-division leagues for handball, volleyball, indoor soccer, and field hockey. The response rate was 81.8% (77 of 94). This survey examines (a) strength and conditioning (S&C) coach profiles, (b) resistance training exercises, (c) resistance training load, (d) repetition velocity, and (e) training leading to muscle failure. The results indicate that 80.5% of coaches held a university degree, with 22% holding a master's degrees, 40% held National Federation certification, and none held Strength and Conditioning Specialist certification. Respondents relied on nonscientific sources of information to develop their conditioning programs. Fifty-eight percent of the S&C coaches were hired full time, with 18% performing the duties of a first trainer. Many S&C coaches did not use weightlifting (54%), full squat (51%), load squat jump (35%), or bench press throw (100%) exercises. Thirty-eight percent of respondents did not control the load intensity or did not use a load of 50-90% of 1 repetition maximum. For these load intensities, 70% did not perform the combination of maximum repetition velocity and nonmuscular failure. More significant deficiencies in the fundamental principles of resistance training were observed in indoor soccer, soccer, field hockey, and among lower performing handball and basketball teams. These results indicate that the profile of the S&C coaches in the Spanish teams is insufficient for an optimal application of resistance training. Spanish S&C coaches should therefore take advantage of advances made through scientific research in the area of strength and conditioning by acquiring master's degrees and specific certificates and consulting peer-reviewer journals.