Efectos de dos programas de entrenamiento de potencia e hipertrofia sobre la densidad mineral ósea y la potencia media en personas con esclerosis múltiple durante 7 semanas. Estudio preliminar.

La alteración en la conducción nerviosa que produce la EM conlleva un deterioro funcional. Concretamente, este deterioro produce pérdidas de masa muscular, densidad mineral ósea (DMO) y potencia, así como un aumento de la masa grasa. En general, el ejercicio físico ha mostrado mejoras a nivel funcional, sin embargo, el entrenamiento de fuerza parece mostrar los mejores resultados para estos parámetros. El propósito de este estudio fue evaluar los efectos de dos programas de entrenamiento de potencia e hipertrofia sobre la DMO y la potencia en personas con EM. Participaron 10 sujetos con EM con una media de edad de 56 años, de los cuales ocho eran mujeres y dos hombres. La muestra fue dividida en dos grupos de forma aleatoria. A cada grupo se le asignó un programa de entrenamiento de forma aleatoria. Se obtuvieron medidas de la DMO, potencia, fuerza y velocidad antes y después de ambos programas de entrenamiento. Se encontraron diferencias significativas en las variables DMO en el grupo de entrenamiento de hipertrofia (EH) y en la potencia del grupo de entrenamiento de potencia (EP). No se encontraron diferencias significativas entre ambos grupos para ninguna del resto de variables. El entrenamiento de hipertrofia reduce la DMO y no mejora la potencia, fuerza y velocidad. Mientras que el entrenamiento de potencia mejora la potencia y no mejora la composición corporal de este tipo de población.post-print263 K

Efectos de dos programas de entrenamiento de potencia e hipertrofia sobre la densidad mineral ósea y la potencia media en personas con esclerosis múltiple durante 7 semanas. Estudio preliminar

La alteración en la conducción nerviosa que produce la EM conlleva un deterioro funcional. Concretamente, este deterioro produce pérdidas de masa muscular, densidad mineral ósea (DMO) y potencia, así como un aumento de la masa grasa. En general, el ejercicio físico ha mostrado mejoras a nivel funcional, sin embargo, el entrena-miento de fuerza parece mostrar los mejores resultados para estos parámetros. El propósito de este estudio fue evaluar los efectos de dos programas de entrenamiento de potencia e hipertrofia sobre la DMO y la potencia en personas con EM. Participaron 10 sujetos con EM con una media de edad de 56 años, de los cuales ocho eran mujeres y dos hombres. La muestra fue dividida en dos grupos de forma aleatoria. A cada grupo se le asignó un programa de entrenamiento de forma aleatoria. Se obtuvieron medidas de la DMO, potencia, fuerza y velocidad antes y después de ambos programas de entrenamiento. Se encontraron diferencias significativas en las variables DMO en el grupo de entrenamiento de hipertrofia (EH) y en la potencia del grupo de entrenamiento de potencia (EP). No se encontraron diferencias significativas entre ambos grupos para ninguna del resto de variables. El entrenamiento de hipertrofia reduce la DMO y no mejora la potencia, fuerza y velocidad. Mientras que el entrena-miento de potencia mejora la potencia y no mejora la composición corporal de este tipo de poblaciónThe alteration in nerve conduction produced by MS leads to functional displacement. Specifically, this increase produces losses of muscle mass, bone mineral density (BMD) and power as well as an increase in fat mass. In general, physical exercise has shown improvements at the functional level, however, strength training seems to show the best results for these parameters. The purpose of this study was to evaluate the effects of two power and hypertrophy training programs on BMD and potency in people with MS. Ten subjects with MS participated with a mean age of 56 years, of which eight were women and two men. The sample was divided into two groups randomly. Each group is assigned a training program randomly. BMD, power, strength and speed measurements were obtained before and after both training programs. Differences were found in the BMD variables in the hypertrophy training group (EH) and in the potency of the power training group (PE). No differences found between both groups were found for any of the other variables. Hypertrophy training reduces BMD and does not improve power, strength and speed. While power training improves potency and does not improve the body composition of this type of populationActividad Física y Deport

Effects of Acute Vitamin C plus Vitamin E Supplementation on Exercise-Induced Muscle Damage in Runners: A Double-Blind Randomized Controlled Trial

Considering the existing controversy over the possible role of acute antioxidant vitamins in reducing exercise-induced muscle damage (EIMD), this doubled-blind, randomized and controlled trial aimed to determine whether supplementation with vitamins C and E could mitigate the EIMD in endurance-trained runners (n = 18). The exercise protocol involved a warm-up followed by 6 to 8 bouts of 1 km running at 75% maximum heart rate (HRmax). Two hours before the exercise protocol, participants took the supplementation with vitamins or placebo, and immediately afterwards, blood lactate, rate of perceived exertion and performance were assessed. At 24 h post-exercise, CK, delayed onset muscle soreness and performance were determined (countermovement jump, squat jump and stiffness test). The elastic index and vertical stiffness were calculated using a stiffness test. Immediately after the exercise protocol, all participants showed improved maximum countermovement jump, which only persisted after 24 h in the vitamin group (p 0.05). Vitamin C and E supplementation does not seem to help with EIMD in endurance-trained individual

Impact of the COVID-19 Lockdown on Physical Activity Levels and Health Parameters in Young Adults with Cancer

The lockdown of the COVID-19 pandemic impacted physical activity (PA) levels around the world, affecting health parameters in young adults with cancer (YAC). To our knowledge, there is no evidence of the impact of the lockdown on the Spanish YAC. To analyse the changes in PA levels before, during, and after the lockdown of the YAC and its impact on health metrics in Spain, in this study, we utilized a self-reported web survey. PA levels decreased during the lockdown, and a significant increase in PA was observed after the lockdown. Moderate PA had the largest reduction (49%). Significant increases in moderate PA were noted after the lockdown (85.2%). Participants self-reported more than 9 h of sitting per day. HQoL and fatigue levels were significantly worse during the lockdown. The impact of the COVID-19 pandemic in this cohort of Spanish YAC showed a decrease in PA levels during the lockdown, affecting sedentarism, fatigue and HQoL. After lockdown, PA levels partially recovered, while HQoL and fatigue levels remained altered. This may have long-term physical effects such as cardiovascular comorbidities associated with sedentarism and psychosocial effects. It is necessary to implement strategies such as cardio-oncology rehabilitation (CORE), an intervention that can be delivered online, potentially improving participants’ health behaviours and outcomes

Impact of the COVID-19 Lockdown on Physical Activity Levels and Health Parameters in Young Adults with Cancer

The lockdown of the COVID-19 pandemic impacted physical activity (PA) levels around the world, affecting health parameters in young adults with cancer (YAC). To our knowledge, there is no evidence of the impact of the lockdown on the Spanish YAC. To analyse the changes in PA levels before, during, and after the lockdown of the YAC and its impact on health metrics in Spain, in this study, we utilized a self-reported web survey. PA levels decreased during the lockdown, and a significant increase in PA was observed after the lockdown. Moderate PA had the largest reduction (49%). Significant increases in moderate PA were noted after the lockdown (85.2%). Participants self-reported more than 9 h of sitting per day. HQoL and fatigue levels were significantly worse during the lockdown. The impact of the COVID-19 pandemic in this cohort of Spanish YAC showed a decrease in PA levels during the lockdown, affecting sedentarism, fatigue and HQoL. After lockdown, PA levels partially recovered, while HQoL and fatigue levels remained altered. This may have long-term physical effects such as cardiovascular comorbidities associated with sedentarism and psychosocial effects. It is necessary to implement strategies such as cardio-oncology rehabilitation (CORE), an intervention that can be delivered online, potentially improving participants’ health behaviours and outcomes.Depto. de MedicinaFac. de MedicinaTRUEpubDescuento UC