Acceleration is the rate of change in velocity, so this phase of sprinting is critical for changing directions as rapidly and efficiently as possible. Optimal technique for linear sprinting in the acceleration phase involves four factors that maximize stride length and frequency.

Repeated sprint ability (RSA) may be one of the most important factors to consider when developing strength and conditioning programs for high-intensity repeated sprint sports. In this session from the NSCA’s 2016 Coaches Conference, Ernie Rimer reviews the latest science behind RSA, compares the pros and cons of RSA protocols performed in the laboratory and in the field, and suggests methods to improve RSA.

This excerpt from Developing Speed aims to develop athletes’ ability to accelerate quickly through stride modification.

This article highlights four non-traditional calf exercises that can immediately be used in strength programs for improving calf strength while also increasing ankle dorsiflexion mobility.

This excerpt from Developing Agility and Quickness provides a needs analysis for field hockey and possible program design options for optimal performance outcomes.

The purpose of this article is to discuss relationships between current fitness testing within the United States Army and its effect on overall tactical readiness.

The aim of the get up and go drill for rugby players is to develop the ability to accelerate from a low body position, which is especially important when accelerating into a potential contact situation.

The purpose of this article is to present normative data that has been previously collected for the 75PR, use the data to create informed training practices, and support the need for further research of this particular topic in law enforcement.

This article is intended to provide an understanding of the demands of football from a bioenergetic perspective and provides a framework in which strength and conditioning professionals can design conditioning plans that focus on preparing athletes for competition.

It is apparent that speed plays a vital role in successful baseball performance. Because of the short distances involved in the game, players rarely, if ever, achieve maximum speed and in actuality, it is acceleration that plays a much greater role in baseball.