Total views : 161
Push-Off Mechanics in Actual Speed Skating and Slide Board Training: A Pilot Study for Designing Skating Simulator
Objectives: The purpose of this study was to analyze the differences in posture during push-off phase between an actual speed skating condition and on slide-board, and provide the basis for improvement of slide-boards. Methods/Statistical Analysis: Nine speed skaters participated in the experiment. To obtain kinematic data in these two conditions, two methods were taken under consideration for the recording motion. The push-off phase was defined as the time period from the left toe contact on the ice surface to the right toe off which was normalized to 100 data points. Univariate analysis of variance was used to test if the differences between two groups with changing time frame in the whole push-off phase are significant. Findings: The results show that the distance between the two feet on the slide board was much longer, while the angle of rotation of both feet was much smaller in the entire push-off phase. Also, there was no significant difference in hip angle between two situations. The knee angle was significantly higher at the early stage of push - off, and the ankle angle was higher at the end of the push - off phase during the slide board training than the actual skate situation. In conclusion, design constraints limits the space on the slideboard which effects the kinematic parameters and made the distance between the left and right foot more distant, as well as smaller rotations of the push off foot. Current slideboards prefer hip-bending exercises, but they do not help with stretching exercises on the knees and ankles. Application/Improvements: Therefore, the structural design of the slide board can be improved by allowing the skater to perform forward propulsion, but not propel the knee or ankle explosively in the medial-lateral direction at the end of the push-off phase.
Posture, Push-Off, Skating, Slide-Board.
- Panday SB, Yang J, Kim K, Moon J, Koo D, Shin I, et al. A proposed method of analyzing the skating posture for the development of real-time feedback skating simulator: A pilot study. International Journal of Applied Engineering Research. 2015; 10(16):37876–9.
- Guru VM, Kamalesh V. Vision based human gait recognition system: Observations, pragmatic conditions and datasets. Indian Journal of Science and Technology. 2015; 8(15).
- Lee JY, Park ME, Kim JS, Hong JH, Yu JH, Lee DY. The effect of muscle activation in trunk stabilization exercise according to the joint angle of normal adults. Indian Journal of Science and Technology. 2015; 8(19).
- Noordhof DA, Foster C, Hoozemans MJM, de Koning JJ. Changes in speed skating velocity in relation to push-off effectiveness. Int J Sport Physiol. 2013; 8(2):188–94.
- Piucco T, dos Santos SG, de Lucas RD, Dias JA. A novel incremental slide board test for speed skaters: Reliability analysis and comparison with a cycling test. Apunts Medicina de l’Esport. 2015 Apr-Jun; 50(186):57–63.
- Saravanan D. Performance analysis of video data image using clustering technique. Indian Journal of Science and Technology. 2016; 9(10):1–6.
- Thote A, Uddanwadiker R, Ramteke A. Simulation and analysis of leg length discrepancy and it’s effect on muscles. Indian Journal of Science and Technology. 2015; 8(17):1–7.
- Houdijk H, de Koning JJ, Bobbert MF, de Croot G. How klapskate hinge position affects push-off mechanics in speed skating. J Appl Biomech. 2002; 18(4):292–305.
- Houdijk H, Heijnsdijk EAM, de Koning JJ, de Groot G, Bobbert MF. Physiological responses that account for the increased power output in speed skating using klapskates. Eur J Appl Physiol. 2000; 83(4-5):283–8.
- Kandou T, Houtman I, de Boer R, de Groot G, van Ingen SG. Comparison of physiology and biomechanics of speed skating with cycling and with skateboard exercise. Canadian Journal of Sport Sciences. 1987; 12(1):31–6.
- Kim M-S, Kim I-G. A research on supportive policy for domestic winter sports on the occasion of 2018 pyeongchang winter olympics. Indian Journal of Science and Technology. 2015; 8(27):1–6.
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution 3.0 License.