2. Baek SK, Yeom DS, Seo JK. The influence of health promoting behavior on expectation emotion and social connectivity in the elderly physical education participants. Koreasn Journal of Sport. 2019; 17(1): 171–180.
3. Kwak KI, Baek CH, Ryu SY. Relationship between the physical activity levels and health care utilization in korean elderly. Korea Academy Industrial Coopertation Society. 2015; 16(1): 617–626.
4. Seo YM, Kang MS, Jeon MY. Predictive factors on level of physical activity in the community dwelling elderly. Journal of the Korea Convergence Society. 2016; 7(6): 151–160.
5. Koo KM, Kim CJ. Analysis of ecological factors of older adults participating in moderate to vigorous physical activities. Journal of Adapted Physical Activity and Exercise. 2018; 26(3): 67–83.
6. Moon HJ, Lee IS. Gender-based comparison of physical activity levels of older korean adults with chronic disease. J Korean Gerontol Nurs. 2011; 13(2): 120–130.
7. Jung HS, Lee BK. The difference of blood lipid and cognitive ability among female elderly people according to their physical exercise frequency. Korean Journal of Sport. 2017; 15(3): 545–552.
8. Lee IH, Kang HS. Association of health physical fitness and serum vitamin D with global cognitive performance in older persons. Ksles. 2016; 23(2): 217–224.
9. Chung JS. Effect of leg strength on flexibility, balance and gait characteristics in elderly woman. The Korean Journal of Growth and Development. 2011; 19(3): 233–239.
10. Liu CJ, Latham NK. Progressive resistance strength training for improving physical function in older adults. Cochrane Database Syst Rev. 2009; 8(3): 2759–2768.
12. Lee KS, Woo KJ, Shim JH, Lee GH. The clinical study of grip and pinch strength in normal korean adult Journal of the Korean Orthopaedic Association. 1995; 30(6):1589–1597.
13. Lee HS, Lee CH. The effect of progressive resistance training with elastic band on grip strength and balance in middle elderly women. J Kor Phys Ther. 2013; 25(2): 110–116.
14. Chung JY, Lee JW, Im JY, Lee DC. Hand grip power is independently associated with physical function in community dwelling elderly. Korean J Clin Geri. 2010; 11(4): 315–323.
15. Cho JK, Yoon ES, Park SH. Association of relative handgrip strength with the incidence of metabolic syndrome in korean adults: a community based cohort study. Exercise Science. 2019; 28(3): 303–310.
16. Choi MJ, Kim GY. The effects of relative handgrip strength on cognitive function: the moderating roles of paid employment status and social activities. Journal of the Korea Gerontological Society. 2019; 39(3): 549–567.
17. Lee JA. Relationship between grip strength and prevalence of hypertension in korean adults: the sixth korea national health and nutrition examination survey 2015. Asian J Kinesiol. 2017; 19(3): 53–60.
19. Hwang SH, Yu MS, Jeon JY. Impact of central obesity and physical activity behavior on health-related quality of life among korean older adults. Korean Journal of Sport Studies. 2018; 57(4): 375–386.
20. Jung DH, Kim JH. Relationships among muscle mass and obesity, metabolic syndrome, physical activity, and nutrient intake in elderly women: based on the 4th-5th (2008-2011) korean national health and nutrition examination survey. Korean J Community Living Sci. 2018; 29(4): 469–483.
21. Son JA. An analysis of factors related with sarcopenia and sarcopenic obesity in the elderly using 2008-2011 Korean National Health and Nutrition Examination Survey. Yeungnam University graduate school, Yeong nam. Republic of Korea; 2018.
22. Kim YS. Association between Grip Strength as Diagnostic Criteria of Sarcopenia and Health-Related Quality of Life in Korean Elderly. Korean J Sports Med. 2018; 36(1): 15–23.
23. Lee KH, Choi JW, Lee NE, et al. Relationship between health-related physical fitness, cognitive function and isolation in the elderly. Journal of the Korea Convergence Society. 2018; 9(4): 285–301.
25. Lee HS, Ahn JS, Chun SH. Analysis of environmental correlates with walking among older urban adults. Journal of the Korean Institute of Landscape Architecture. 2011; 39(2): 65–72.