This article briefly reviews the importance of the stretch-shortening cycle in power production.

Oxygen uptake (or consumption) is a measure of a person’s ability to take in oxygen and deliver it to the working tissues, and the ability of working tissues to use oxygen. During low-intensity exercise with a constant power output, oxygen uptake increases for the first few minutes until a steady state of uptake is reached.

This excerpt from Developing Power explains how to use bands for variable resistance training.

Lawrence Herrera, owner and founder of LH Performance, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about how strong is strong enough, keeping the training simple, and relating to athletes and coaches.

Dave Forman, Director of Strength and Conditioning at Virginia Military Institute, talks to the former NSCA Head Strength and Conditioning Coach, Scott Caulfield, about becoming a strength coach. Topics under discussion include communication with athletes, appreciating the growth as a coach over time, and creating lasting impressions and relationships with athletes. Find Dave on Twitter: @VMIStrength

Jason Loscalzo, Head Strength and Conditioning Coach for the Chicago Bears National Football League (NFL) team, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about his journey from a college to NFL strength and conditioning coach. Topics under discussion include networking, diversifying your portfolio, and coaching philosophy. Find Jason Loscalzo on Twitter: @jason_loscalzo| Find Scott on Instagram: @coachcaulfield

This article breaks down youth training. To develop athleticism for youth, coaches should follow the C.O.R.E. principles: context in which to apply movement patterns, opportunities to develop proper movement, recognition of physical attributes required, and environments in which youth explore movement.

This article discusses the variability in physical testing outcomes for law enforcement recruits based on the ambient temperatures and relative humidity present on test day.

This article provides the personal trainer with sample exercise progressions for teaching resistance training movement patterns along with practical strategies for instruction and reinforcement of proper technique.

This PTQ article discusses current research examining the relationship between training volume and muscle hypertrophy and provides guidelines for optimizing training outcomes. Visit NSCA online to read more on exercise science and sport performance.