1. Finneran A, O'Sullivan L. Effects of grip type and wrist posture on forearm EMG activity, endurance time and movement accuracy. International Journal of Industrial Ergonomics 2013;43(1):91-9. doi.org/10.1016/j.ergon.2012.11.012 2. Ghasemi C, Jafari H, Jamshidi A. Temporal stability of torque parameters and induced perception following muscle fatigue. Journal of Modern Rehabilitation 2010;4(3):6-11. Persian 3. Emge N, Prebeg G, Uygur M, Jaric S. Effects of muscle fatigue on grip and load force coordination and performance of manipulation tasks. Neurosci Lett 2013;550:46-50. doi: 10.1016/j.neulet.2013.07.008. 4. Gilman MB. The use of heart rate to monitor the intensity of endurance training. Sports Med 1996;21(2):73-9. doi:10.2165/00007256-199621020-00001 5. Eston RG, Lamb KL, Parfitt G, King N. The validity of predicting maximal oxygen uptake from a perceptually-regulated graded exercise test. Eur J Appl Physiol 2005;94(3):221-7. doi:10.1007/s00421-005-1327-2 6. Eston RG, Lamb KL, Parfitt G, King N. The validity of predicting maximal oxygen uptake from a perceptually-regulated graded exercise test. Eur J Appl Physiol 2005;94(3):221-7. doi: 10.1007/s00421-005-1327-2 7. Nasl-Saraji J, Zeraati H, Pouryaghub G, Gheibi L. Musculoskeletal disorders study in damming construction workers by Fox equation and measurement heart rate at work. Iran Occupational Health Journal 2008;5(1):55-60. Persian 8. Grant JA, Joseph AN, Campagna PD. The prediction of VO2max: a comparison of 7 indirect tests of aerobic power. The Journal of Strength & Conditioning Research 1999;13(4):346-52. 9. Daneshmandi H, Choobineh A, Rajaei Fard A. Validation of Borg’s RPE 6-20 scale in male industrial workers of Shiraz city based on heart rate. Jundishapur Sci Med J 2012;11(1):1-10. Persian 10. Borg GA. Psychophysical bases of perceived exertion. Med Sci Sports Exerc 1982;14(5):377-81. 11. Madanmohan, Mahadevan SK, Balakrishnan S, Gopalakrishnan M, Prakash ES. Effect of six weeks yoga training on weight loss following step test, respiratory pressures, handgrip strength and handgrip endurance in young healthy subjects. Indian J Physiol Pharmacol 2008;52(2):164-70. Persian 12. McDowell TW, Wimer BM, Welcome DE, Warren C, Dong RG. Effects of handle size and shape on measured grip strength. International Journal of Industrial Ergonomics 2012;42(2):199-205. https://doi.org/10.1016/j.ergon.2012.01.004 13. Hashemi Nezhad N, Choobineh A, Haghdoust AA, Mohammadian M. Comparison of grip and pinch strengths of adults among five cities of Iran. Journal of School of Public Health and Institute of Public Health Research 2014;11(3):65-81. Persian 14. Massy-Westropp NM, Gill TK, Taylor AW, Bohannon RW, Hill CL. Hand Grip Strength: age and gender stratified normative data in a population-based study. BMC Res Notes 2011;4:127. doi: 10.1186/1756-0500-4-127. 15. McQuiddy VA, Scheerer CR, Lavalley R, McGrath T, Lin L. Normative Values for Grip and Pinch Strength for 6- to 19-Year-Olds. Arch Phys Med Rehabil 2015;96(9):1627-33. doi: 10.1016/j.apmr.2015.03.018. 16. Ramlagan S, Peltzer K, Phaswana-Mafuya N. Hand grip strength and associated factors in non-institutionalised men and women 50 years and older in South Africa. BMC Res Notes 2014; 7: 8. doi: 10.1186/1756-0500-7-8 17. Mehta RK, Cavuoto LA. The effects of obesity, age, and relative workload levels on handgrip endurance. Appl Ergon 2015;46 Pt A:91-5. doi: 10.1016/j.apergo.2014.07.007. 18. Mier CM, Gibson AL. Evaluation of a treadmill test for predicting the aerobic capacity of firefighters. Occup Med (Lond) 2004;54(6):373-8. doi:10.1093/occmed/kqh008 19. Rantanen T, Masaki K, Foley D, Izmirlian G, White L, Guralnik JM. Grip strength changes over 27 yr in Japanese-American men. J Appl Physiol (1985) 1998;85(6):2047-53. doi: 10.1152/jappl.1998.85.6.2047 20. Brothers TD, Theou O, Rockwood K. Do Performance-based health measures reflect differences in frailty among immigrants age 50+ in Europe? Can Geriatr J 2014;17(3):103-7. doi: 10.5770/cgj.17.114 21. Karavatas SG, Tavakol K. Concurrent validity of Borg’s rating of perceived exertion in African-American young adults, employing heart rate as the standard. The Internet Journal of Allied Health Sciences and Practice 2005;3(1): 1-5. 22. Heydari P, Varmazyar S, Sabeti S, Jafari S, Ataei S. Effects of Music Genre and Sound Pressure Level on Calorie Consumption and Physical Performance of Students during Treadmill Tests. Journal of Ergonomics 2016;3(4):57-66. Persian 23. Bohannon RW. Hand-grip dynamometry predicts future outcomes in aging adults. J Geriatr Phys Ther 2008;31(1):3-10. 24. Butterfield SA, Lehnhard RA, Loovis EM, Coladarci T, Saucier D. Grip strength performances by 5- to 19-year-olds. Percept Mot Skills 2009;109(2):362-70. doi:10.2466/PMS.109.2.362-370 25. Mohammadian M, Choobineh A, Haghdoost AA, Hashemi Nejad N. Investigation of grip and pinch strengths in Iranian adults and their correlated anthropometric and demographic factors. Work 2015;53(2):429-37. doi: 10.3233/WOR-152180. 26. Mohd Hairi F, Mackenbach JP, Andersen-Ranberg K, Avendano M. Does socio-economic status predict grip strength in older Europeans? Results from the SHARE study in non-institutionalised men and women aged 50+. J Epidemiol Community Health 2010; 64: 829 -37. doi:10.1136/jech.2009.088476 27. Cavuoto LA, Nussbaum MA. Obesity-related differences in muscular capacity during sustained isometric exertions. Appl Ergon 2013;44(2):254-60. doi: 10.1016/j.apergo.2012.07.011. 28. Habibi E, Kazemi M, Dehghan H, Mahaki B, Hassanzadeh A. Hand grip and pinch strength: Effects of workload, hand dominance, age, and Body Mass Index. Pak J Med Sci 2013;29(1)Suppl:363-7. doi: http://dx.doi.org/10.12669/pjms.291(Suppl).3535 29. Apovian CM, Frey CM, Wood GC, Rogers JZ, Still CD, Jensen GL. Body mass index and physical function in older women. Obes Res 2002;10(8):740-7. doi:10.1038/oby.2002.101 30. Koley S, Kaur N, Sandhu JS. A Study on Hand Grip Strength in Female Labourers of Jalandhar, Punjab, India. Journal of Life Sciences 2009;1(1):57-62. doi: 10.1080/09751270.2009.11885135 31. Vaz M, Hunsberger S, Diffey B. Prediction equations for handgrip strength in healthy Indian male and female subjects encompassing a wide age range. Ann Hum Biol 2002;29(2):131-41. doi:10.1080/03014460110058962 32. Chilima DM, Ismail SJ. Nutrition and handgrip strength of older adults in rural Malawi. Public Health Nutr 2001;4(1):11-7. https://doi.org/10.1079/PHN200050