The goal of this brief review is to describe what classifies as high-intensity interval training (HIIT) and summarize the potential benefits for various populations: athletic, general, and clinical.

The VO2max test is the most effective measurement of the body’s ability to deliver and use oxygen for producing energy that can be used by the muscles. VO2max (i.e., maximum aerobic power) simply stands for the maximal volume of oxygen that can be used.

This article briefly explains different squat variations, as well as how they differ from a physics and biomechanics standpoint.

Confused about which diet is best? Alan Aragon examines the evidence behind the claims made by each of the main diet perspectives in this session from the 2015 NSCA Personal Trainers Conference. The questions answered include: “which diet is best for weight loss?” and “which diet is best for promoting health and preventing cardiovascular disease?” Individual goals and circumstances will be discussed as well as practical applications.

The purpose of this article is to compare the effects of quarter, parallel, and full depth squats on muscle activity, joint stress, athletic abilities, and potential injury risks for the consideration of all strength and conditioning professionals.

This article looks at the four phases of the rowing stroke: the catch, drive, finish, and recovery. A sample resistance training program that addresses all four phases is included.

This Personal Trainers Quarterly article shares considerations to counteract the decline of muscular fitness in older adults. Visit NSCA online to read more on corrective exercises, health, and fitness

Drew Hammond, Army Holistic Health and Fitness (H2F) Program Director at Fort Bragg, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about differences between tactical and collegiate strength and conditioning. Topics include the Army H2F Program, tactical athlete programming, and how to pursue military strength and conditioning positions. Find Drew on LinkedIn: Drew Hammond | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This article focuses on the requirements that must be met for sailors to pass a Physical Fitness Assessment (PFA), and resources the Command Fitness Leader (CFL) and tactical facilitator have at their disposal to assist sailors. In addition, an example program is provided to help support sailors struggling to meet PFA requirements.

This article discusses lactate testing as a cost-effective alternative way to create advanced exercise prescriptions, as well as opening the possibility of being a new biomarker of metabolic health for personal trainers.