Browse > Article
http://dx.doi.org/10.5762/KAIS.2021.22.5.403

A Study on Flow Characteristics around Foot to Investigate Principle of Underwater Exercise for Rheumatoid Arthritis Patients  

Choi, Ji-Hyun (Department of Mechanical Engineering, Kongju National University)
Park, Sung-Young (Div. of Mechanical & Automotive Engineering, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.5, 2021 , pp. 403-410 More about this Journal
Abstract
There are positive effects, such as pain reduction, when rheumatism patients exercise in water, but the cause of the pain reduction is unclear, and research on this is inadequate. This study examined the flow of the surface of the foot and the principles of pain relief. Unsteady simulations were conducted to analyze the flow, which was performed by repeatedly setting the movement of the foot raising and descending three times. Pressure fluctuations and frequencies were analyzed by designating pressure points at the painful location. The results showed that a positive and negative pressure of approximately ±500Pa was applied overall. A pressure of approximately ±2000Pa was applied when the direction of movement was changed. A frequency of approximately 35 to 80Hz was generated in the area where rheumatoid arthritis pain frequently occurs. The effects of reducing pain could be predicted when continuous pressure fluctuations and frequencies are applied repeatedly to the painful location, blood circulation promotion. The results could be used as basic data to understand the principles of aquatic exercise and support the development of underwater exercise programs and developing related medical equipment.
Keywords
Rheumatoid arthritis; Underwater Exercise; Flow Characteristic; Pressure Fluctuations; Foot;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 G. Caminiti, M. Volterrani, G. Marazzi, A. Cerrito, R. Massaro, et al., "Hydrotherapy added to endurance training versus endurance training alone in elderly patients with chronic heart failure: a randomized pilot study", International Journal of Cardiology, Vol.148, No.2, pp.199-203, April. 2011. DOI: https://doi.org/10.1016/j.ijcard.2009.09.565   DOI
2 G. J. Choi, If you have rheumatoid arthritis, you should be careful about your foot health [Internet], c2013 [cited 2013 October 18], Available From: https://blog.naver.com/ha4119woo/60201927563 (accessed Jan. 6, 2020)
3 My love rheumatism, Early Symptoms and Features of Toe Rheumatoid Arthritis [Internet], c2019 [cited 2019 April 16], Available From: https://ra7575.blog.me/221514693195 (accessed Jan. 6, 2020)
4 WallsHeaven, Foot bones pain Wall mural, [Internet], c2013 [cited 2013 January 1], Available From: https://wallsheaven.com/wall-murals/foot-bones-pain-A168674071 (accessed March. 25, 2021)
5 D. H. Yoo, "Recent Trend in the Treatment of Rheumatoid Arthritis", The Journal of the Korean orthopaedic association, Korea, Vol.45, No.10, pp.419-425, 2010. http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01573396   DOI
6 S. B. Hong, H. G. Cho, T. W. Jung, The Effects of Underwater Exercises Program with Buoyancy Appliances on Hemiplegies' Gait of Patients with Hemiplegia, Master's thesis, Yongin University of Special sports, Yongin, Korea, pp.81-96, 2016.
7 J. I. Kim, "An Effect of Aquatic Exercise Program with Self-help Group Activites and Strategies for Promoting Self-efficacy on Pain, Physiological Parameters and Quality of Life in Patients having Rheumatoid Arthritis", The Journal of Muscle and Joint Health, Korea, Vol.1, No.1, pp.1-30, 1994.
8 D. W. Han, Effects of aqua exercise program on the improvement of physical function, body compositions and blood components in the older adults, Ph.D dissertation, Daegu University Rehabilitation Science and Physical Treatment, Korea, p. 101, 2002.
9 H. C. Cho, Y. K. Kwon, B. Y. Kim, M. Y. Lee, J. S. Kim, H. S. Kang, "(The) effects of aquatic rehabilitation exercise on physical fitness, peripheral circulation, and bone mineral density of hemiplegic", Korean Association of Athletic Physiology, Korea, Vol.18, No.4, pp.559-566, 2009. DOI: https://doi.org/10.15857/ksep.2009.18.4.559   DOI
10 J. I. Kim, K. S. Cho, H. S. Sim, E. N. Lee, I. O. Lee, Y. Eun, D. S. Lee, H. S. Kang, W. S. Bak, J. H. Lee, "Analysis of Studies on the Effect of Aquatic Exercise Program", The Journal of Muscle and Joint Health, Vol.18, No.2, pp.257-269, November, 2011. DOI: https://doi.org/10.5953/JMJH.2011.18.2.257   DOI
11 CD-Adapco, Star-CCM+ ver. 11.04 User Guide, 2016.
12 O. K. Moon, J. G. Yoon, H. S. Jeong, "Effect of Arthrokinematic Treatment on the Cartilage of Knee Joint of Rabbit", International Journal of Cardiology , Korea, Vol.198, No.9, pp.225-232, 2007.
13 K. S. Hyun, (The) effects of rehabilitation exercise programs on muscular function and body composition of anterior cruciate ligament reconstruction surgery patients , Ph.D. dissertation, Korea University of Physical Education, Korea, 2000.
14 M. G. Neto, C. S. Conicao, F. L. Arcanjo de jesus, V. O. Carvalho, "Hydrotherapy on exercise capacity, muscle strength and quality of life in patients with heart failure: A meta-analysis", International Journal of Cardiology , Vol.198, No.1, pp.216-219, November. 2015. DOI: http://dx.doi.org/10.1016/j.ijcard.2014.10.132   DOI
15 J. H. Choi, S. Y. Park, "Numerical Study on the Characteristics of Fluid Flow and Pressure Fluctuation around Human Knuckle in Hydrogymnastics", Journal of the Korea Academia-Industrial, Korea, Vol.20, No.6, pp.390-395, 2019. DOI: http://dx.doi.org/10.1016/j.ijcard.2014.10.132   DOI
16 J. I. Kim, K. H. Choi, "Computation Fluid Flow Study on the pressure Fluctuation Caused by the Vortex Flow Arising From Underwater Exercises of Arthritis Patient", Defect and Diffusion Forum, Vol.390, pp.8-20, 2019.19. DOI: https://doi.org/10.4028/www.scientific.net/DDF.390.8   DOI