Riesgo de fibrilación auricular en relación al tipo de actividad física Los beneficios de la actividad física han sido ampliamente constatados, pero existe cierta controversia con respecto a si unos niveles muy altos podrían ser perjudiciales y provocar fibrilación auricular, un tipo de arritmia con potenciales consecuencias dramáticas para la salud. El equipo de Fissac ha publicado recientemente un artículo en la prestigiosa revista European Journal […] Escrito por Fissac 19 mayo, 202020 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Systematic review and meta-analysis of randomized, controlled trials on preoperative physical exercise interventions in patients with non-small-cell lung cancer Preoperative physical exercise protocols prior to cancer surgery increased in popularity over recent years; however, the beneficial effect of such protocols is not well established, with conflicting results reported. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to assess the effects of different modalities or combinations of preoperative exercise interventions and/or prehabilitation multicomponent training in […] Escrito por Fissac 17 julio, 201912 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Does beef protein supplementation improve body composition and exercise performance? a systematic review and meta-analysis of randomized controlled trials Protein supplementation might improve body composition and exercise performance. Supplements containing whey protein (WP) have received the most attention, but other protein sources such as beef protein (BP) are gaining popularity. We conducted a systematic review and meta-analysis of randomized controlled trials that compared the effects of exercise training combined with BP, WP or no protein supplementation (NP), on […] Escrito por Adrián Castillo G. 17 junio, 20199 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Physical exercise and mitochondrial disease: insights from a mouse model Purpose: Mitochondrial diseases (MD) are among the most prevalent neuromuscular disorders. Unfortunately, no curative treatment is yet available. This study analyzed the effects of exercise training in an animal model of respiratory chain complex I deficiency, the Harlequin (Hq) mouse, which replicates the clinical features of this condition. Methods: Male heterozygous Harlequin (Hq/Y) mice were assigned to an «exercise» (n = 10) or a «sedentary» control group […] Escrito por Adrián Castillo G. 17 junio, 20199 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Supplements with purported effects on muscle mass and strength PURPOSE: Several supplements are purported to promote muscle hypertrophy and strength gains in healthy subjects, or to prevent muscle wasting in atrophying situations (e.g., ageing or disuse periods). However, their effectiveness remains unclear. METHODS: This review summarizes the available evidence on the beneficial impacts of several popular supplements on muscle mass or strength. RESULTS: Among […] Escrito por Fissac 17 mayo, 201912 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Athletic “oldest-old”: alive and kicking On October 13, 2018, an 86-year-old Japanese man named Hiromu Inada, finished the Ironman Triathlon World Championship (Hawaii) in 16 hours 54 minutes. The Ironman triathlon is the paradigm of grueling endurance races, with its 2.4-mile swim, 112-mile cycle, and 26.2-mile marathon all rolled into 1 event held under extreme heat, humidity, and wind conditions. […] Escrito por Fissac 17 mayo, 201912 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
More on the record-breaking performance in a 70-year-old marathoner To the Editor: Robinson et al.1 (April 11 issue) determined the physiological profile of a 70-year-old man who ran a marathon in 2:54:23, thanks to his ability to “maintain a remarkably high percentage of his maximum oxygen uptake” (approximately 95%, according to our calculations). Although persons 80 years of age reach the ventilatory threshold closer to the […] Escrito por Fissac 17 mayo, 201912 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Is health status impaired in childhood cancer survivors? a systematic review and meta-analysis BACKGROUND: An increase in survival rates of childhood cancer is associated with long-term health issues in survivors. METHODS: We conducted a systematic review and meta-analysis comparing health status-related endpoints in childhood cancer survivors (CCS) versus controls. RESULTS: Eighty-six studies (n = 98,480 participants, 62% CCS) were included in the review. Of these, 73 studies (n = 96,550, 63% CCS) […] Escrito por Adrián Castillo G. 17 mayo, 20199 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Inhospital exercise training in children with cancer: does it work for all? Purpose: Physical exercise training might counteract the weakening effects of both pediatric cancer and anti-cancer treatment. We aimed to analyze the prevalence of «responders» and «non-responders» to inhospital exercise training in children with cancer and to identify the factors that could influence responsiveness, which might help personalize exercise interventions for this patient population. Methods: We performed an ancillary analysis of the randomized controlled trial «Physical activity in Pediatric Cancer» (NCT01645436), in which 49 children with solid tumors […] Escrito por Fissac 17 diciembre, 201812 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Relationship between skeletal muscle contractile properties and power production capacity in female olympic rugby players This study aimed to determine which contractile properties measured by tensiomyography (TMG) could better differentiate athletes with high- and low-power values, as well as to analyse the relationship between contractile properties and power production capacity. The contractile properties of the vastus medialis (VM), rectus femoris (RF) and vastus lateralis (VL) of an Olympic women’s Rugby […] Escrito por Fissac 17 septiembre, 201812 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Enhanced external counterpulsation and short-term recovery from high-intensity interval training PURPOSE: Enhanced external counterpulsation (EECP) is a recovery strategy whose use has increased in recent years owing to the benefits observed in the clinical setting in some cardiovascular diseases (ie, improvement of cardiovascular function). However, its claimed effectiveness for the enhancement of exercise recovery has not been analyzed in athletes. The aim of this study […] Escrito por Fissac 17 septiembre, 201812 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
Performance and physiological analysis of 500 km non-stop cycling: a case study Ultra-endurance sports have gained popularity over the last years. In this case, a well-trained cyclist completed 503.5 km non-stop (33.3 km.h-1). Speed and power output were reduced during the trial, being the reduction of power attributable to changes in pedal velocity rather than pedal forces. Heart rate (HR) showed an initial cardiovascular drift and progressively decreased independently […] Escrito por Pedro L. Valenzuela 17 septiembre, 201812 mayo, 2020 Ahorro de Este artículo agregar a favoritos Marcado
