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한국생산제조학회 학술지 영문 홈페이지
[ Article ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 4, pp.198-205
ISSN: 2508-5107 (Online)
Print publication date 15 Aug 2023
Received 24 May 2023 Revised 22 Jun 2023 Accepted 27 Jun 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.4.198

A Study on the Effect of Flexcage Apparatus on Bone Density

Kyu-Taek Hana, *
aDepartment of Mechanical Engineering, Pukyong National University

Correspondence to: *Tel.: +82-51-629-6135 E-mail address: kthan@pknu.ac.kr (Kyu-Taek Han).

Abstract

The purpose of this study is to investigate the effect of functional shoe apparatus on bone density. To evaluate the usefulness of the flexcage apparatus inserted into the shoes, an appropriate impact force was applied to the feet. The model with the proposed structure had an effective stress of approximately 20–100% higher than that of the model without it, among most of 15 bone extraction points. Although the finite element analysis data from the human body model were not the values of mineral bone densities measured directly but those of the effective bone stresses against impact, the proposed structure was designed to increase the bone mass and improve the mineral bone density by actually improving the density of mineral bone. In conclusion, shoes with flexcage inserts were evaluated to improve the bone density compared with those without inserts.

Keywords:

Shoe apparatus, Flexcage, Human body, Bone density, Impact force

Acknowledgments

This work was supported by a Research Grant of Pukyong National University(2023).

References

  • Fujimura, R., Ashizawa, N., Watanabe, M., Mukai, N., Amagai, H., Fukubayashi, T., Hayashi, K., Tokuyama, K., Suzuki, M., 1997, Effect of Resistance Exercise Training on Bone Formation and Resorption in Young Male Subjects Assessed by Biomarkers of Bone Metabolism, J. Bone Miner. Res., 12:4 656-662. [https://doi.org/10.1359/jbmr.1997.12.4.656]
  • Williams, D. I., McClay, I. S., Hamill, J., 2001, Arch Structure and Injury Patterns in Runners, Clin. Biomech., 16:4 341-347. [https://doi.org/10.1016/s0268-0033(01)00005-5]
  • Hannsen, T., Roos, B., 1984, Age Change the Bone Mineral Density at the Lumbar Spine in Normal Women, Calcif. Tissue Int., 38 249-251. [https://doi.org/10.1007/BF02556602]
  • Ahn, Y. D., 2002, Effect of Participation in Hata Yoga and Gate Ball and Weight-training on Bone Mineral Density in Postmenopausal Women, The Korean Journal of Physical Education, 41:3 459-466.
  • Wolff, J., 1982, Das Gesetz der Transformation der Knocken, Berlin, Hirschwald.
  • Dalen, N., Olssen, K. E., 1974, Bone Mineral Content and Physical Activity, Acta Ortopedica Scondinavical, 45:1-4 170-174. [https://doi.org/10.3109/17453677408989136]
  • Chow, R., Harrison, J. E., Notarius, C., 1987, Effect of Two Randomised Exercise Programmes on Bone Mass of Healthy Postmenopausal Women, Br. Med. J., 295 1441-1444. [https://doi.org/10.1136/bmj.295.6611.1441]
  • Nichols, D. L., Sanbom, C. F., Love, A. M., 2001, Resistance Training and Bone Mineral Density in Adolescent Females, J. Pediatr., 139:4 494-500. [https://doi.org/10.1067/mpd.2001.116698]
  • Kwon, C. W., Kim, T. W., 1998, The Study of Upper and Lower Knee Bone Density in the Elite and College Students, KAHPERD Conference, 776-782.
  • Kim, H.-D., Kim, D.-J., 2008, The Effects of Taekwondo Training Program on Body Composition, Bone Mineral Density and Growth Factors in the Children, Journal of life Science, 18:9 1230-1238., <https://kmbase.medric.or.kr/Main.aspx?menu=01&d=KMBASE&m=VIEW&i=0613820080180091230>, .
  • Oh, D. W., Chon, S. H., Shim, J. H., 2010, Effect of Shoe Heel Height on Standing Balance and Muscle Activation of Ankle Joint, J. Ergon. Soc. Korea, 29:5 789-795. [https://doi.org/10.5143/JESK.2010.29.5.789]
  • Chun, S. M., Kim, C., 2012, Pressure Analysis of Plantar Musculoskeletal Fascia while Walking using Finite Element Analyses, Transactions of the Korean Society of Mechanical Engineers - A, 36:8 913-920.
  • Nigg, B., Stefanyshyn, D., Cole, G., Boyer, K., 2005, Footwear Research-past, Present and Future, Proceedings of the 7th symposium on Footwear Biomechanics, 726-732.
  • Ryu, S. H., Kim, S. H., Cho, J. R., 2005, Finite Element Analysis of Impact Characteristics of Shoes-Leg Coupled Model to Landing Mode, Transactions of the Korean Society of Mechanical Engineers - A, 29:9 1191-1198.
  • Martin, D., Notelovitz, M., 1993, Effects of Aerobic Training on Bone Mineral Density of Postmenopausal Women, J. Bone Miner. Res., 8:8 931-936. [https://doi.org/10.1002/jbmr.5650080805]
  • Han, K. -T., 2013, Development of the Functional Shoe Apparatus using FEM, J. Korean Soc. Manuf. Proc. Eng., 12:3 91-94.
  • Han, K. -T., 2022, A Study on the Die Shape Machining using CAD/CAE/CAM System, J. Korean Soc. Manuf. Technol. Eng., 31:2 86-93. [https://doi.org/10.7735/ksmte.2022.31.2.86]
  • NASTRAN, 2010, NASTRANTM , Release 2010, USA.
  • Ryu, T., Choi, H. S., Choi, H., Chung, M. K., 2006, A Comparison of Gait Characteristics between Korean and Western people for Establishing Korean Gait Reference Data, Int. J. Ind. Ergon., 36:12 1023-1030. [https://doi.org/10.1016/j.ergon.2006.09.013]
Kyu-Taek Han

Professor in the Department of Mechanical Engineering, Pukyong National University. His research interest is Computer Aided Manufacturing.

E-mail: kthan@pknu.ac.kr