Purpose: In this commentary, I present arguments against the use of the force-velocity profiling concept in design and adaptations of training programs targeting sprinting. The purpose of this commentary is to make sports practitioners more aware of the rationale behind the concept and explain why it does not work. Rationale: Force-velocity profiling is a mathematical way to present the velocity development during sprint behavior. Some details of this behavior may be accentuated by transforming it to other variables, but it does not add any new information about sprint performance. Thus, contrary to what is often claimed, the force-velocity profile does not represent maximal capacities (ability of force and velocity generation) of the athlete. It is claimed that through force-velocity profiling one may identify the optimal ratio of force and velocity capacities. Furthermore, proponents of the force-velocity profiling concept suggest that through directed training force and velocity capacities can be altered (inversely dependent) to obtain this optimal ratio, without changing the capacity to express power. Fundamentally, this idea is unfounded and implausible. Conclusion: At best, force-velocity profiling may be able to identify between-athletes differences. However, these can be more easily deduced directly from performance time traces.
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