Velocity-Based Strength Training: An Integrative Analysis of Methodological Evolution, Training Advantages, and Limiting Factors

Abstract

Velocity-based strength training has made full use of the continuous development of sports biomechanical measurement technology and is now an end in itself, not merely a way to monitor load. The basis of the above method is to construct an individual load-velocity profile and dynamically adjust the velocity-loss threshold; thus, it is a closed-loop adaptive control scheme based on real-time feedback and not the traditional open-loop training decision-making method. Another advantage of training is that it can selectively activate high-threshold motor units and change their firing frequency; thus, fatigue will be reduced and recovery will be improved by stimulating the high-velocity part of the force-velocity curve to enhance athletic performance. The application effect of this method is limited by factors that affect the external validity of the load-velocity relationship, by the different responses of various people to the threshold of velocity loss, and by the equipment used. The three dimensions of the theoretical framework for this method in this paper are the development of the method, the strengths and weaknesses of training, and the general application range and individualisation of the program.