Increased sprint performance with false step in collegiate athletes trained to forward step

Sports Biomechanics
Aaron SchwenzfeierMartin Short

Abstract

The ability to achieve rapid acceleration is a crucial asset for athletes. An emergent tactic to achieve this advantage has been the performance of a backward step when beginning a sprinting action. This action has even gained the moniker 'false step', implying its lack of utility. Thus, a significant debate has developed among coaches regarding the value of this phenomenon. This study examined the false step through a comparison with a forward step condition, where participants were only allowed to step forward to initiate a sprint. Comparisons were made between velocity products as well as mechanical antecedents during the first milliseconds of sprint initiation. Participants were 30 healthy college-aged student-athletes, who were asked to perform three false step and forward step sprint trials. Timing gates and 3D modelling were used to examine velocities and mechanical variables during these trials. Overall, results demonstrated that the false step was significantly (p < 0.001) faster (0.23s; 9.44%) over a ten-metre sprint. Additionally, angular variables of the ankles during sprint initiation were found to be significantly different between false and forward step conditions. Findings suggest that the false step may be bene...Continue Reading

References

Jul 25, 2000·Sports Medicine·W G Hopkins
Feb 13, 2001·Journal of Biomechanics·G A KraanJ Storm
Nov 23, 2006·Journal of Science and Medicine in Sport·Matthew StewartScott Campbell
Oct 5, 2010·Journal of Strength and Conditioning Research·Trevor M JohnsonBrandon P Uribe
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Sep 14, 2011·Journal of Strength and Conditioning Research·David M Frost, John B Cronin
Jan 24, 2012·Journal of Strength and Conditioning Research·Jason A LeDuneRebecca A Zakrajsek
Mar 15, 2014·Journal of Strength and Conditioning Research·Jason L CusickTravis K Ficklin

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