Analysis of Forefoot Bending Angle in Sprint Spikes According to Bobsleigh Start Lap Time for Development of Korean-Specific Bobsledding Shoes

Park, Seungbum; Lee, Kyungdeuk; Kim, Daewoong; Yoo, Junghyeon; Jung, Jaemin; Park, Kyunghwan; Park, Sungwon; Kim, Jinhoon

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자료유형: 학술저널

저자정보: Park, Seungbum (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Lee, Kyungdeuk (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Kim, Daewoong (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Yoo, Junghyeon (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Jung, Jaemin (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Park, Kyunghwan (Footwear Biomechanics Team, Footwear Industrial Promotion Center, Busan Economic Promotion Agency) Park, Sungwon (Design Center, TrekSta Inc.) Kim, Jinhoon (Design Center, TrekSta Inc.)

저널정보: 한국운동역학회 한국운동역학회지 한국운동역학회지 제26권 제3호

발행연도: 2016.1

수록면: 315 - 321 (7page)

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Objective: The aim of this study was to analyze effects of the toe-spring angle of bobsleigh shoes on start speed lap time to develop Korean-specific bobsled shoes suitable for winter environments and for domestic players on the basis of sports science and optimized biomechanical performance. Method: Seven Korean bobsleigh athletes participated in this study, with three pairs of sprint spikes from three companies (Type A, Type B, Type C). To analyze sprint lap time and forefoot bending angle for each shoe, participants were instructed to drag a sled 15 meters from the start line at a maximum sprint. forefoot bending angle was collected by a high speed camera, and lap time speed was measured. Results: Lap time for type B shoes was $3.52{\pm}0.17sec$, type A was $3.55{\pm}0.19sec$, and type C was $3.56{\pm}0.18sec$. Forefoot bending angles were: angle 1, $6.88{\pm}5.55^{\circ}$; angle 2, $9.23{\pm}6.38^{\circ}$; angle 3, $15.56{\pm}5.39^{\circ}$; angle 4, $9.54{\pm}3.85^{\circ}$; angle 5, $9.22{\pm}5.08^{\circ}$; angle 6, $7.66{\pm}6.44^{\circ}$; and angle 7, $4.30{\pm}6.24^{\circ}$ (p<.001). Forefoot bending in angle 3 was as follows: type A, $16.47{\pm}6.01^{\circ}$; type B, $14.30{\pm}4.96^{\circ}$; and type C, $15.90{\pm}5.17^{\circ}$. Conclusion: Hard outsoles and midsoles are better than soft type for reduced start lap time when developing a prototype Korean bobsled shoe.

#Bobsleigh #Toe spring angle #High speed camera #Lap time #Shoes

참고문헌 (20)

참고문헌 신청

Bonacci, J. / 2013 / Running in a minimalist and lightweight shoe is not the same as running barefoot: a biomechanical study / British Journal of Sports Medicine 47:387~392

Chen, C. H. / 2012 / Effect of shoe sole flexibility on shank muscles and lower limb joints in different speeds / proceedings of the XXXII FIMS world congress of sports medicine

Chowdhury, H. / 2015 / Aerodynamic Body Position of the Brakeman of a 2-man Bobsleigh / Procedia Engineering 112:424~429

Dabnichki P. / 2006 / Influence of the position of crew members on aerodynamics performance of two-man bobsleigh / Journal of Biomechanics 39(15):2733~2742

Dabnichki, P. / 2015 / Bobsleigh performance characteristics for winning design / Procedia Engineering 112:436~442

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