عنوان مقاله [English]
Background and Aim: Mentally retarded individuals have poor physical fitness and inappropriate body composition. The purpose of this study was toinvestigate of effect of combined exercise training program on body composition and physical fitness in mentally retarded girls.Material and Methods: twenty twosubjects from a private rehabilitation center (age: 22-30 years, intelligence quotients= 50-70) were selected and randomly divided into two groups of experimental and control. The training protocol included strength and aerobic training, eight weeks, three sessions per week, and each session 90 minutes. Part of resistance training included training with elastic bands and weight bearing resistance exercise (with respect of overload) and aerobic training included walking, jogging and rhythmic activities. Before and after training protocol body composition, general strength and aerobic power were measured. Data were analyzed using dependent and independent sample t-tests on gain scores, employing the SPSS statistical package program. The test significance level was taken as p<0.05.Results: There were no statistically significant differences in weight (t=0.48, p=0.63), BMI (t=1.35, p=0.19), lean body mass (t= -0.23, p=0.81), fat body mass (t=0.91, p=0.37), and VO2max in Mc Ardle step test (t=1.7, p=0.1) and shuttle run test (t=-1.14, p=0.26) between groups, whereas muscular strength significantly increased (t=-4.56, p=0.001) in training group. Conclusion: Combined resistance and aerobic training can improve muscular strength in mentally retarded girls, whereas probably have no significantly effect on body composition and aerobic power. It suggested that exercise training program consider as a part of daily activities and curriculum in rehabilitation centers, and these training designed with longer duration and more intensity and consideration dietary regimen.
Afrouz, G. H. (1995). Anintroduction of psychology and education of exceptional children. Tehran University Publication, Tehran. [Persian]
Bar-Or, O., Skinner, J. S., Bergsteinova, V., & Shearburn, C. (1971). Maximal aerobic capacity of 6-15 year-old girls and boys with subnormal intelligence quotients. Acta Paediatrica Scandinavica Supplement 217, 108-13.
Blomqvist, S., Olsson, J., Wallin, L., Wester, A., & Rehn, B. (2013). Adolescents with intellectual disability have reduced postural balance and muscle performance in trunk and lower limbs compared to peers without intellectual disability. Research in Developmental Disabilities, 34(1),198-206.
Burkart, J. E., Fox, R. A., & Rotatori, A. F. (1985). Obesity of mentally retarded individuals: prevalence, characteristics, and intervention. American Journal of Mental Deficiency, 90(3), 303-12.
Calders, P., Elmahgoub, S., de Mettelinge, T. R., & Vandenbroeck, C. (2011). Effect of combined exercise training on physical and metabolic fitness in adults with intellectual disability: a controlled trial. Clinical Rehabilitation, 25(12), 1097-1108.
Carmeli, E., Barchad, S., Lenger, R., & Coleman, R. (2002). Muscle power, locomotor performance and flexibility in aging mentally-retarded adults with and without Down's syndrome. Journal of Musculoskeletal and Neuronal Interactions, 2(5), 457-62.
Cioni, M., Cocilovo, A., Di Pasquale, F., & Araujo, M. B. (1994). Strength deficit of knee extensor muscles of individuals with Down syndrome from childhood to adolescence. American Journal of Mental Retardation,99(2), 166-74.
Cowley, P. M., Ploutz-Snyder, L. L., Baynard, T., & Heffernan, K. (2010). Physical fitness predicts functional tasks in individuals with downDown syndrome (Abs). Medicine and Science in Sports and Exercise, 42(2), 388-393.
Dodd, K. J., & Shields, N. (2005). A systematic review of the outcomes of cardiovascular exercise programs for people with Down syndrome. Achieves of Physical Medicine and Rehabilitation, 86(10), 2051-8.
Dwayer, B. D., & Davis, S. (2008). ACSM's health-related physical fitness assessment manual. 2nd Edition. American College of Sports Medicine.
Elmahgoub, S. M., Calders, P., Lambers, S., & Stegen, S. (2011). The effect of combined exercise training in adolescents who are overweight or obese with intellectual disability: the role of training frequency. Journal of Strength and Conditioning Research, 25(8), 2274-2282.
Flouris, A. D., Metsios, G. S., & Koutedakis, Y. (2005). Enhancing the efficacy of the 20 m multistage shuttle run test. British Journal of Sports Medicine, 39(3), 166–170.
Golubovic, S., Maksimovic, J., Golubovic, B., & Glumbic, N. (2012). Effects of exercise onphysical fitness in children with intellectual disability. Research in Developmental Disabilities, 33(2), 608-614.
González-Agüero, A., Vicente-Rodríguez, G., Gómez-Cabello, A., & Ara, I. (2011). A combined training intervention programme increase lean mass in youths with Down Syndromesyndrome. Research in Developmental Disabilities, 32, 2383-2388.
Hagobian, T. A., Sharoff, C. G., Stephens, B. R., & Wade, G. N. (2009). Effects of exercise on energy-regulating hormones and appetite in men and women. American Journal of Physiology. Regulatory, Integrative and Comparative Physiology, 296(2), R233-R242.
Heller, T., Hsieh, K., & Rimmer, J. H. (2004). Attitudinal and psychosocial outcomes of a fitness and health education program on adults with Down syndrome. American Journal of Mental Retardation, 109(2), 175–185.
Jankowicz-Szymanska, A., Mikolajczyk, E., & Wojtanowski, W. (2012). The effect of physical training on static balance in young people with intellectual disability. Research in Developmental Disabilities, 33(2), 675-681.
Khagavi, M., Bijeh, N., & Moazami, M. (2014). The concurrent effect of one bout aerobic exercise and short-term garlic supplementation on the lipids profile in male non-athletes. Journal of Shahrekord University Medical Science, 16(1), 56-64. [Persian]
Kraemer, B. R., McIntyre, L. L., & Blacher, J. (2003). Quality of life for young adults with mental retardation during transition. Mental Retardation, 41(4), 250-62.
Lewis, C. L., & Fragala-Pinkham, M. A. (2005). Effects of aerobic conditioning and strength training on a child with Down syndrome: A case study (Abs). Pediatric Physical Therapy, 17(1), 30-36.
Mashhadi, M., Ghasemi, G. h., Karami, S., & Hushangi Zamir, I. (2013). The comparison of hand grip and trunk muscle strength in active and non-active students with mental retardation and healthy students. Journal of Research in Rehabilitation Science, 8(6), 1132-41. [Persian]
Mendonca, G. V., & Pereira, F. D. (2009). Influence of long-term exercise training on submaximal and peak aerobic capacity and locomotor economy in adult males with Down's syndrome. Medical Science Monitor, 15(2), 33-39.
Mendonca, G. V., Pereira, F. D., & Fernhall, B. (2011). Effects of combined aerobic and resistance exercise training in adults with and without Down syndrome. Achieves of Physical Medicine and Rehabilitation, 92(1), 37-45.
Ordonez, F., Rosety, M., & Rosety-Rodriguez, M. (2006). Influence of 12-week exercise training on fat mass percentage in adolescents with Down syndrome (Abs). Medicine Science Monitoring, 12(10), 419-416.
Ozmen, T., Ryildirim, N. U., Yuktasir, B., & Beets, M. W. (2007). Effects of school-based cardiovascular-fitness training in children with mental retardation. Pediatric Exercise Science, 19(2), 171-8.
Pitetti, K. H., Yarmer, D. A., & Fernhall, B. (2001). Cardiovascular fitness and body composition of youth with and without mental retardation. Adapted Physical Education Quaterly, 18(2), 127‐141.
Pommering, TL., Brose, JA., Randolph, E., & Murray, TF. (1994). Effects of an aerobic exercise program on community-based adults with mental retardation. Mental Retardation, 32(3), 218-26.
Rimmer, J. H., Heller, T., & Wang, E. I. (2004). Improvements in physical fitness in adults with Down syndrome (Abs). American Journal of Mental Retardation, 109(2), 165–174.
Shields, N., Taylor, N. F., & Dodd, K. J. (2008). Effects of a community-based progressive resistance training program on muscle performance and physical function in adults with Down syndrome: a randomized controlled trial. Achieves of Physical Medicine and Rehabilitation, 89(7), 1215-20.
Shin, I. S., & Park, E. Y. (2010). Meta-analysis of the effect of exercise programs for individuals with intellectual disabilities. Research in Developmental Disabilities, 33(6), 1937-47.
Stanish, H. I., & Frey, G. C. (2008). Promotion of physical activity in individuals with intellectual disability. Salud Pública de México, 50(2), 178-84.
Varela, A. M., Sardinha, L. B., & Pitetti, K. H. (2001). Effects of an aerobic rowing training regimen in young adults with Downsyndrome. American Journal of Mental Retardation, 106(2), 135–144.