A mathematical modelling study of an athlete's sprint time when towing a weighted sled

被引：6
作者：
Linthorne N.P. [1 ]
机构：
[1] Centre for Sports Medicine and Human Performance, School of Sport and Education, Brunel University, Middlesex, Uxbridge
来源：
Sports Engineering | 2013年 / 16卷 / 02期
关键词：
Biomechanics; Friction; Kinematics; Sled; Sprint;
D O I：
10.1007/s12283-013-0114-2
中图分类号：
学科分类号：
摘要：
This study used a mathematical model to examine the effects of the sled, the running surface, and the athlete on sprint time when towing a weighted sled. Simulations showed that ratio scaling is an appropriate method of normalising the weight of the sled for athletes of different body size. The relationship between sprint time and the weight of the sled was almost linear, as long as the sled was not excessively heavy. The athlete's sprint time and rate of increase in sprint time were greater on running surfaces with a greater coefficient of friction, and on any given running surface an athlete with a greater power-to-weight ratio had a lower rate of increase in sprint time. The angle of the tow cord did not have a substantial effect on an athlete's sprint time. This greater understanding should help coaches set the training intensity experienced by an athlete when performing a sled-towing exercise. © 2013 International Sports Engineering Association.
引用
收藏
页码：61 / 70
页数：9
相关论文
共 28 条
  • [1] Alcaraz P.E., Palao J.M., Elvira J.L.L., Linthorne N.P., Effects of three types of resisted sprint training devices on the kinematics of sprinting at maximum velocity, J Strength Cond Res, 22, pp. 890-897, (2008)
  • [2] Arsac L.M., Effects of altitude on the energetics of human best performances in 100 m running: a theoretical analysis, Eur J Appl Physiol, 87, pp. 78-84, (2002)
  • [3] Arsac L.M., Locatelli E., Modelling the energetics of 100-m running by using speed curves of world champions, J Appl Physiol, 92, pp. 1781-1788, (2002)
  • [4] Astrand P.-O., Rodahl K., Dahl H.A., Stromma S.B., Textbook of Work Physiology: Physiological Bases of Exercise, (2003)
  • [5] Barnard S., The effects of varying the length of tow rope during sled towing on sprint performance and joint kinematics in the acceleration phase, (2011)
  • [6] Crewther B.T., McGuigan M.R., Gill N.D., The ratio and allometric scaling of speed, power, and strength in elite male rugby union players, J Strength Cond Res, 25, pp. 1968-1975, (2011)
  • [7] Cronin J., Hansen K., Resistance sprint training for the acceleration phase in sprinting, Strength Cond J, 28, 4, pp. 42-51, (2006)
  • [8] Cronin J., Hansen K., Kawamori N., McNair P., Effects of weighted vests and sled towing on sprint kinematics, Sports Biomech, 7, pp. 160-172, (2008)
  • [9] Duthie G.M., Pyne D.P., Marsh D.J., Hooper S.L., Sprint patterns in rugby union players during competition, J Strength Cond Res, 20, pp. 208-214, (2006)
  • [10] Halliday D., Resnick R., Walker J., Fundamentals of Physics, (2010)
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