1. Hortobágyi T, Mizelle C, Beam S, DeVita P. Old adults perform activities of daily living near their maximal capabilities. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences 2003; 58(5): M453-M60. 2. DiPietro L. Physical Activity in Aging Changes in Patterns and Their Relationship to Health and Function. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences 2001; 56(2): 13-22. 3. Vozarova B, Weyer C, Hanson K, Tataranni PA, Bogardus C, Pratley RE. Circulating interleukin‐6 in relation to adiposity, insulin action, and insulin secretion. Obesity Research 2001; 9(7): 414-7. 4. Stewart C, Rittweger J. Adaptive processes in skeletal muscle: molecular regulators and genetic influences. Journal of Musculoskeletal and Neuronal Interactions 2006; 6(1): 73. 5. Seldin MM, Peterson JM, Byerly MS, Wei Z, Wong GW. Myonectin (CTRP15), a novel myokine that links skeletal muscle to systemic lipid homeostasis. Journal of Biological Chemistry 2012; 287(15): 11968-80. 6. Grabstein KH, Eisenman J, Shanebeck K, Rauch C, Srinivasan S, Fung V, et al. Cloning of a T cell growth factor that interacts with the beta chain of the interleukin-2 receptor. Science 1994; 264(5161): 965-8. 7. Akerstrom T, Steensberg A, Keller P, Keller C, Penkowa M, Pedersen BK. Exercise induces interleukin-8 expression in human skeletal muscle. The Journal of Physiology 2005; 563(2): 507-16. 8. Quinn LS, Anderson BG, Drivdahl RH, Alvarez B, Argilés JM. Overexpression of Interleukin-15 Induces Skeletal Muscle Hypertrophy in Vitro Implications for Treatment of Muscle Wasting Disorders. Experimental Cell Research 2002; 280(1): 55-63. 9. Tanaka H, Swensen T. Impact of resistance training on endurance performance. Sports Medicine 1998; 25(3): 191-200. 10. Pedersen BK, Akerström TC, Nielsen AR, Fischer CP. Role of myokines in exercise and metabolism. Journal of Applied Physiology 2007;103(3):1093-8. 11. Alvarez B, Carbó N, López-Soriano Jn, Drivdahl RH, Busquets Sl, López-Soriano FJ, et al. Effects of interleukin-15 (IL-15) on adipose tissue mass in rodent obesity models: evidence for direct IL-15 action on adipose tissue. Biochimica et Biophysica Acta (BBA)-General Subjects 2002; 1570(1): 33-7. 12. Busquets S, Figueras M, Almendro V, López-Soriano FJ, Argilés JM. Interleukin-15 increases glucose uptake in skeletal muscle An antidiabetogenic effect of the cytokine. Biochimica et Biophysica Acta (BBA)-General Subjects 2006; 1760(11): 1613-7. 13. Leveritt M, Abernethy PJ, Barry BK, Logan PA. Concurrent strength and endurance training. Sports medicine. 1999; 28(6): 413-27. 14. Coffey VG, Hawley JA. The molecular bases of training adaptation. Sports Medicine 2007; 37(9): 737-63. 15. Saremi A, Shavandi N, Parastesh M, Daneshmand H. Twelve-week aerobic training decreases chemerin level and improves cardiometabolic risk factors in overweight and obese men. Asian Journal of Sports Medicine 2010; 1(3): 151-8. 16. Solomon TP, Sistrun SN, Krishnan RK, Del Aguila LF, Marchetti CM, O'Carroll SM, et al. Exercise and diet enhance fat oxidation and reduce insulin resistance in older obese adults. Journal of Applied Physiology 2008;104(5):1313-9. 17. Clemmons DR. Role of IGF-I in skeletal muscle mass maintenance. Trends in Endocrinology & Metabolism 2009; 20(7): 349-56. 18. Nichols J, Omizo D, Peterson K, Nelson K. Efficacy of heavy-resistance training for active women over sixty: muscular strength, body composition, and program adherence. Journal of the American Geriatrics Society 1993; 41(3): 205-10. 19. Leveritt M, Abernethy PJ, Barry B, Logan PA. Concurrent strength and endurance training: the influence of dependent variable selection. The Journal of Strength & Conditioning Research 2003; 17(3): 503-8. 20. Chtara M, Chaouachi A, Levin GT, Chaouachi M, Chamari K, Amri M, etal. Effect of concurrent endurance and circuit resistance training sequence on muscular strength and power development. The Journal of Strength & Conditioning Research 2008; 22(4): 1037-45. 21. Inder W, Hellemans J, Swanney M, Prickett T, Donald R. Prolonged exercise increases peripheral plasma ACTH, CRH, and AVP in male athletes. Journal of Applied Physiology 1998; 85(3): 835-41. 22. Nieman DC, Davis J, Brown VA, Henson DA, Dumke CL, Utter AC, et al. Influence of carbohydrate ingestion on immune changes after 2 h of intensive resistance training. Journal of Applied Physiology 2004; 96(4): 1292-8. 23. Cadore EL, Izquierdo M, Alberton CL, Pinto RS, Conceição M, Cunha G, et al. Strength prior to endurance intra-session exercise sequence optimizes neuromuscular and cardiovascular gains in elderly men. Experimental gerontology 2012; 47(2): 164-9. 24. Hickson RC. Interference of strength development by simultaneously training for strength and endurance. European Journal of Applied Physiology and Occupational Physiology 1980; 45(2-3): 255-63. 25. Coffey VG, Pilegaard H, Garnham AP, O'Brien BJ, Hawley JA. Consecutive bouts of diverse contractile activity alter acute responses in human skeletal muscle. Journal of Applied Physiology 2009; 106(4): 1187-97. 26. Taipale RS, Häkkinen K. Acute Hormonal and Force Responses to Combined Strength and Endurance Loadings in Men and Women: The “Order Effect”. PloS One 2013; 8(2): e55051. 27. Ostrowski K, Hermann C, Bangash A, Schjerling P, Nielsen JN, Pedersen BK. A trauma-like elevation of plasma cytokines in humans in response to treadmill running. The Journal of Physiology 1998; 513(3): 889-94. 28. Wackerhage H. Adaptation to endurance training. Genetics and Molecular Biology of Muscle Adaptation 2006: 165-96. 29. Riechman SE, Balasekaran G, Roth SM, Ferrell RE. Association of interleukin-15 protein and interleukin-15 receptor genetic variation with resistance exercise training responses. Journal of Applied Physiology 2004; 97(6): 2214-9. 30. Macaluso A, De Vito G. Muscle strength, power and adaptations to resistance training in older people. European Journal of Applied Physiology 2004; 91(4): 450-72. 31. Coburn JW, Malek MH. NSCA's essentials of personal training: Human Kinetics 2012. 32. TANG Q-h, XIE X-r. Research of the Physical Function and Fitness of Elder Intellectuals by Health Qigong• BaDuanJin [J]. Journal of Physical Education Institute of Shanxi Teachers University 2008; 1: 043. 33. Cadore E, Pinto R, Lhullier F, Correa C, Alberton C, Pinto S, et al. Physiological effects of concurrent training in elderly men. International Journal of Sports Medicine 2010; 31(10): 689. 34. Di Blasio A, Gemello E, Di Iorio A, Di Giacinto G, Celso T, Di Renzo D, et al. Order effects of concurrent endurance and resistance training on post-exercise response of non-trained women. Journal of Sports Science & Medicine 2012; 11(3): 393. 35. McCARTHY JP, Pozniak MA, Agre JC. Neuromuscular adaptations to concurrent strength and endurance training. Medicine and Science in Sports and Exercise 2002; 34(3): 511-9. 36. Glowacki SP, Martin SE, Maurer A, Baek W, Green JS, Crouse SF. Effects of resistance, endurance, and concurrent exercise on training outcomes in men. Medicine and Science in Sports and Exercise 2004; 36(12): 2119-27. 37. Shaw B, Shaw I. Compatibility of concurrent aerobic and resistance training on maximal aerobic capacity in sedentary males: cardiovascular topics. Cardiovascular journal of Africa 2009; 20(2): 104-6. 38. Nindl BC, Harman EA, Marx JO, Gotshalk LA, Frykman PN, Lammi E, et al. Regional body composition changes in women after 6 months of periodized physical training. Journal of Applied Physiology 2000; 88(6): 2251-9. 39. Gergley JC. Comparison of two lower-body modes of endurance training on lower-body strength development while concurrently training. The Journal of Strength & Conditioning Research 2009; 23(3): 979-87. 40. Dolezal BA, Potteiger JA. Concurrent resistance and endurance training influence basal metabolic rate in nondieting individuals. Journal of Applied Physiology 1998; 85(2): 695-700. 41. Taleghani H, Soori R, Rezaeian N, Khosravi N. Changes of plasma leptin and adiponectin levels in response to combined endurance and resistance training in sedentary postmenopausal women. Koomesh 2012; 13(2). 42. Ossanloo P, Zafari A, Najar L. The Effects of Combined Training (Aerobic Dance, Step Exercise and Resistance Training) on Cardio Vascular Disease Risk Factors in Sedentary Females. Annals of Biological Research 2012; 3(7): 3652-6. 43. Assarzade Noushabadi M, Abedi B. Effects of combination training on insulin resistance index and some inflammatory markers in inactive men. The Horizon of Medical Sciences 2012; 18(3): 95-105. 44. Sigal RJ, Kenny GP, Boul أ© NG, Wells GA, Prud'homme D, Fortier M, et al. Effects of Aerobic Training, Resistance Training, or Both on Glycemic Control in Type 2 DiabetesA Randomized Trial. Annals of Internal Medicine 2007; 147(6): 357-69. 45. Nielsen AR, Mounier R, Plomgaard P, Mortensen OH, Penkowa M, Speerschneider T, et al. Expression of interleukin-15 in human skeletal muscle–effect of exercise and muscle fibre type composition. The Journal of Physiology 2007; 584(1): 305-12. 46. Marzetti E, Carter CS, Wohlgemuth SE, Lees HA, Giovannini S, Anderson B, et al. Changes in IL-15 expression and death-receptor apoptotic signaling in rat gastrocnemius muscle with aging and life-long calorie restriction. Mechanisms of Ageing and Development 2009; 130(4): 272-80. 47. Kim H-J, Park JY, Oh SL, Kim Y-A, So B, Seong JK, et al. Effect of treadmill exercise on interleukin-15 expression and glucose tolerance in zucker diabetic fatty rats. Diabetes & Metabolism Journal 2013; 37(5): 358-64. 48. Quinn L. Interleukin-15: a muscle-derived cytokine regulating fat-to-lean body composition. Journal of Animal Science 2008; 86(14 Suppl). 49. Argilés JM, López-Soriano FJ, Busquets S. Therapeutic potential of interleukin-15: a myokine involved in muscle wasting and adiposity. Drug Discovery Today 2009; 14(3):208-13.