Luis Cunha, Department of Sport Science, Faculty of Human Movement, Technical University of Lisbon, Portugal

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Purpose: Examine the relationship between different phases of a 100 meter sprint run (acceleration, max speed, deceleration) and results obtained from different tests (squat jumps, drop jumps, counter-movement jumps) to quantify the capability to produce force in isometric and stretch-shortening contraction modes, to discriminate between sprinters of different capacity.

 

Conclusions: No correlation was found between the different sprint phases and the various muscle force-producing tests.

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IN PLAIN ENGLISH: Due to differences in body posture, joint angles, specific muscle contraction requirements, amount of resistances, etc., it is difficult to assess sprinting ability based on conventional non-specific tests done aside from the act of sprinting itself. The laws of specificity clearly state that comparing two seemingly similar activities can be flawed.