1- Marras W.S, Cutlip R.G, Burt S.E, Waters T.R. National occupational research agenda (NORA) future directions in occupational musculoskeletal disorder health research. Applied Ergonomics. 2009 ;( 40):15–22.
2- McNee C , Kieser J.K , Antoun J.S, Bennani H, Gallo L.M , Farella M . Neck and shoulder muscle activity of orthodontists in natural environments. Journal of Electromyography and Kinesiology.2013; (xxx): xxx.
3- Brockmann W, Badr M. Chronic kidney disease: Pharmacological considerations for the dentist. J Am Dent Assoc.2010; (141): 1330-1339.
4- Murphy DR. Concretive management of cervical spine syndrome. New York, MC Grow – Hill; 2000:483 – 515.
5- Paillard T. Effects of general and local fatigue on postural control: A review. Neuroscience and Biobehavioral Reviews. 2012; (36): 162–176.
6- Mostamand J, Lotfi H, Safi N. Evaluating the head posture of dentists with no neck pain. Journal of Bodywork & Movement Therapies.2012; (xx):1-4.
7- Dong H, Loomer P, Barr A, LaRoche C, Young E, Rempel D. The effect of tool handle shape on hand muscle load and pinch force in a simulated dental scaling task. Applied Ergonomics. 2007; (38): 525–531.
8- Hertling D, Kessler RM. Management of Common Musculoskeletal Disorders,4th ed. Philadelphia: Lippincott Williams & Wilkins; 2006.
9- Kendal FP, Provance PG, McCreary EK, Rodgers MM, Romani WA. Muscle Testing and Function, 4th ed. Philadelphia: Lippincott Williams & Wilkins; 2005.
10- Ghzc: The control of movement. In Kendal ER, Schwartz JH: Principles of Neural Science. 3th ed. Norwalk, coin: Appleton and Loge, 1:534 – 547; 1991.
11- Murphy DR. Concretive management of cervical spine syndrome. New York: MC Grow – Hill: 45 – 71; 2000.
12- Donatelli R,Wooden MJ. Orthopedic physical therapy. New York: Churchill living stone: 46 – 61; 2001.
13- Murphy DR. Concretive management of cervical spine syndrome. New York: MC Grow – Hill: 307 – 327; 2000.
14- Nashner. Practical Biomechanics and Physiology of Balance, In: Jacobson G, editor. Handbook of Balance Function and Testing, London:Mosby:261 – 279; 1993.
15- Czaprowski D, Kotwicki T, Biernat R, Urniaz_J, Ronikier A. Physical capacity of girls with mild and moderate idiopathic scoliosis: influence of the size, length and number of curvatures. Eur Spine J.2012;(21):1099–1105.
16- Woollacott M, Vander Velde TJ. Non-visual spatial tasks reveal increased interactions with stance postural control. B r a i n r e s e a r c h.2008; (1 2 0 8): 9 5 – 1 0 2.
17- Savoie S, Tanguay S, Centomo H, Beauchamp G, Anidjar M, Prince F. Postural control during laparoscopic surgical tasks. The American Journal of Surgery.2007; (193): 498–501.
18- Palluel E, Nougier V, Olivier I. Postural control and attentional demand during adolescence. B r a i n r e s e a r c h.2010;( 1 3 5 8) :1 5 1 – 1 5 9.
19- Mahboobin A, Loughlin PJ, Redfern MS. A model-based approach to attention and sensory integration in postural control of older adults. Neuroscience Letters.2007; (429): 147–151.
20- DiDomenico A, Nussbaum MA. Interactive effects of mental and postural demands on subjective assessment of mental workload and postural stability. Safety Science. 2005; (43): 485–495.
21- Yeh TT, Boulet J, Cluff T, Balasubramaniam R. Contributions of delayed visual feedback and cognitive task load to postural dynamics. Neuroscience Letters.2010; (481): 173–177.
22- Andersson G, Hagman J, Talianzadeh R, Svedberg A, Larsen HC. Effect of cognitive load on postural control. Brain research bulletin 2002; (58):135–139.
23- Riley MA, Baker AA, Schmit JM. Inverse relation between postural variability and difficulty of a concurrent short-term memory task. Brain research bulletin.2003; (62): 191–195.
24- Ehrenfried T, Guerraz M, Thilo KV, Yardley L, Gresty MA. Posture and mental task performance when viewing a moving visual field. Cognitive brain research .2003; (17): 140–153.
25- Pellecchia GL. Postural sway increases with attentional demands of concurrent cognitive task. Gait and Posture. 2003; (18): 29_/34.
26- Maylor EA, Wing AM. Age differences in postural stability are increased by cognitive demands. J. Gerontol. Psychol. Sci.1996; (51): 143–154.
27- Hanes DA, McCollum G. Cognitive-vestibular interactions: a review of patient difficulties and possible mechanisms.
Vestibular research.2006; (1): 75–79.
28- Kerr B, Condon SM, McDonald LA. Cognitive spatial processing and the regulation of posture. J. Exp. Psychol.1985; (11): 617–622.
29- Sykes K, Roberts A. The Chester step test—a simple yet effective tool for the prediction of aerobic capacity. Physiotherapy .2004; (90): 183–188.
30- Tuxworth W, Shahnavaz H. The design and evaluation of a step test for the rapid prediction of physical work
capacity in an unsophisticated industrial work force. Ergonomics.1977; 20(2):181-91.
31- West R. Neural correlates of cognitive control and conflict detection in the Stroop and digit-location tasks. Neuropsychologia.2003;( 41): 1122–1135.