http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : ( Yaodong Gu ) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
( Yan Zhang ),( Fekete Gusztav ),( Yaodong Gu ) 한국체육학회 2016 국제스포츠과학 학술대회 Vol.2016 No.1
Introduction: The high-heel design has been remaining one of the dominant features of women’s footwear. Social and fashion customs encourage the continued use of high-heel shoes (Hong et al., 2005) despite of detrimental effects on the musculoskeletal system, such as lower back pain, ankle sprains, foot pain, hallux valgus and increased predisposition toward degenerative knee osteoarthritis (Barkema, Derrick, & Martin, 2012; Chien et al., 2014; Dawson et al., 2002; Gu et al., 2014). The purpose of this study was to clarify differences in lower limb kinematics and GRF between EW and IEW during moderate high-heel jogging and running. It was hypothesized that EW would show faster self-select speeds of jogging and running than IEW; EW would decrease joint instability while increase GRF in comparison with IEW; changes of lower limb joints (range of motions and peak angles) and GRF would increase as speed increased for all wearers. Method: Eleven experienced female wearers of moderate high-heel shoes (EW: age: 24.2±1.2 years; height: 160±2.2 cm; mass: 51.6±2.6 kg) and eleven matched controls (IEW; age: 23.7±1.3 years; height: 162.3±2.3 cm; mass: 52.6±4.5 kg) participated in this test with informed written consent, as approved by the Ethics Committee of Ningbo University. Subjects completed jogging and running tasks separately at self-selected speed along a 10-meter-walkway. A force platform (Kistler, Switzerland) was fixed in the middle of the walkway and utilized to collect GRF at the frequency of 1000 Hz. The 8-camera Vicon motion analysis system (Oxford Metrics Ltd., Oxford, UK) was used to capture lower limb kinematics at the frequency of 200 Hz. Subjects were required to wear tight-fitting pants and 16 reflective markers (diameter: 14 mm) were attached with adhesive on the left and right lower limbs, respectively. Result: Fig1, 2 summarize the main GRF and VALR characteristics of EW and IEW. Impact force (Fz1) showed no significant differences between wearing experience or speeds. The maximal vertical GRF (Fz2) of EW during jogging was significantly larger than that of IEW jogging. EW during running showed significantly larger Fz2 compared with IEW jogging and running. Discussion: A key finding of this study was that compared with IEW, EW showed reduced joint ROM during stance phase to prevent excessive joint loading except for motions of knee and hip in sagittal plane that respectively aid in propulsion and load attenuation instead. Moderate high-heel shoes placed IEW at a greater risk of joint and soft tissue injury with generally larger peak angles during stance phase. However, the effect of these conservative control strategies adopted by EW partially lost during running in comparison with jogging. As speed increased from jogging to running, EW mainly relied on increasing SL, leading to landing with narrow high heel, which consequently resulted in an extremely high loading rate. From a kinetic perspective, EW also tended to have bone-on-bone injury in high-heeled running. In conclusion, moderate high-heeled wearers who have to run, whether regularly or occasionally, are putting themselves at high risk of lower limb damage. If having to run on high heels, even moderate ones, it is crucial for wearers to control joint stability and strike pattern consciously. Reference Barkema, D. D., Derrick, T. R., & Martin, P. E. (2012). Heel height affects lower extremity frontal plane joint moments during walking. Gait & posture, 35(3), 483-488. Chien, H. L., Lu, T. W., & Liu, M. W. (2014). Effects of long-term wearing of high-heeled shoes on the control of the body``s center of mass motion in relation to the center of pressure during walking. Gait & posture, 39(4), 1045-1050. Dawson, J., Thorogood, M., Marks, S. A., Juszczak, E., Dodd, C., Lavis, G., & Fitzpatrick, R. (2002). The prevalence of foot problems in older women: a cause for concern. Journal of Public Health, 24(2), 77-84. Gu, Y., Li, F., Li, J., Feng, N., Lake, M. J., Li, Z., & Ren, J. (2014). Plantar Pressure Distribution Character In Young Female With Mild Hallux Valgus Wearing High-heeled Shoes. Journal of Mechanics in Medicine and Biology, 14(01), 1450008. Hong, W.-H., Lee, Y.-H., Chen, H.-C., Pei, Y.-C., & Wu, C.-Y. (2005). Influence of heel height and shoe insert on comfort perception and biomechanical performance of young female adults during walking. Foot & Ankle International, 26(12), 1042-1048.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
