Physical activity levels in anorexia nervosa patients

La Anorexia Nerviosa (AN) es un trastorno de la alimentación de predominio en mujeres jóvenes que se caracteriza por una pérdida de peso ponderal inducida y mantenida por el propio paciente, que le conduce a la malnutrición progresiva y rasgos psicopatológicos peculiares como la distorsión de la imagen corporal y el miedo a la obesidad (Moreno Villares, 2003). La AN tiene importantes repercusiones sobre múltiples órganos y sistemas. Uno de los sistemas más deteriorados es el tejido muscular, lo que a su vez repercute sobre el modelado y remodelado óseo. Todo ello se encuentra estrechamente relacionados con la cantidad y tipo de actividad física que se realiza durante la fase de crecimiento tal y como demuestran numerosos estudios transversales y longitudinales (Calbet y col., 2001; Valdimarsson y col., 2006; Vicente-Rodríguez y col., 2004, 2006). Se han observado niveles de actividad física elevados entre pacientes con AN que se pueden manifestar a través de diferentes formas como actividades colectivas, correr, caminar, conductas nerviosas de repetición, entre otras, sugiriendo un rol etiológico en el desarrollo de AN en algunas pacientes (Davis y col. 1997). El ejercicio es tratado como una forma de perder peso en AN y se asocia a una peor respuesta al tratamiento (Carter y col., 2004; Strober y col., 1997). El objetivo de este la estudio es describir los niveles de actividad física en pacientes de AN utilizando la metodología de acelerómetros.Anorexia Nervosa (AN) is an eating disorder which is predominant in young females and characterized by an induced weight loss and supported by the own patient. It induces progressive malnutrition and peculiar psychopathologic features like body-image distortion and fear of obesity (Moreno Villares, 2003). AN has important impacts in multiple organs and systems. One of the most deteriorated systems is the skeletal muscle tissue. Bone mass is also usually affected. The aforementioned problems are strongly related to the total amount and type of physical activity during the growth phase as shown in previous several cross and longitudinal studies (Calbet et al., 2001, Valdimarsson et al., 2006, Vicente-Rodriguez et al., 2004, 2006). Elevated physical activity levels are commonly observed among patients with AN manifested in several forms like collective activities, running, walking pacing and fidgeting behaviours among others, all of which could play an etiologic role in development of AN in some patients (Davis et al., 1997). Physical activity is assumed to facilitate weight loss in AN and is associated with poorer outcome to the treatment (Carter et al., 2004; Strober et al. 1997). The purpose to this study was to describe the physical activity levels of AN patients using accelerometry technology.Sin financiaciónNo data 2008UE

Assessment of upper arm anthropometric changes on anorexia nervosa patients after resistance training

3.983 JCR (2014) Q1, 6/81 Sport sciencesUE

Does resistance training improve the functional capacity and well being of very young anorexic patients? A randomized controlled trial

We determined the effects of a 3-month low-moderate-intensity strength training program (2 sessions/week) on functional capacity, muscular strength, body composition, and quality of life (QOL) in 22 young (12-16 yrs) anorexic outpatients. Patients were randomly assigned to a training or control group (n=11 [10 females] each). Training sessions were of low intensity (loads for large muscle groups ranging between 20%-30% and 50%-60% of six repetitions maximum [6RM] at the end of the program). We measured functional capacity by the time up and go and the timed up and down stairs tests. Muscular strength was assessed by 6RM measures for seated bench and leg presses. We estimated percent body fat and muscle mass. We assessed patients' QOL with the Short Form-36 items. The result of this study was that the intervention was well tolerated and did not have any deleterious effect on patients' health, and did not induce significant losses in their body mass. The only studied variable for which a significant interaction (group x time) effect was found (p=.009) was the 6RM seated lateral row test. In conclusion, low-moderate-intensity strength training does not seem to add major benefits to conventional psychotherapy and refeeding treatments in young anorexic patients.3.116 JCR (2010) Q1, 8/109 Pediatrics, 24/142 Public, environmental & occupational healthUE