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.

This article discusses the importance and impact a qualified fitness professional on the fitness and readiness of soldiers for the United States Army.

This article explains Fartlek training as well as how it can be programmed and individualized for different clients.

This article features the recharge skate—an in-season hockey conditioning drill, designed by the authors, to maintain hockey-specific energy system fitness throughout the competitive season.

Coaches can use drills to improve quickness and agility. The training session can improve the specific areas needed to increase performance results by setting up appropriate intensity levels, duration of drills, recovery periods, and volume of drills.

High-intensity strength training paired with explosive, high-velocity movements is suggested to enhance endurance performance. It is recommended that a practical approach be taken when implementing this model of strength training, which would involve a thorough preparatory period.

A review of the literature concludes that a strength training program including low-intensity to high-intensity resistance exercises and plyometric exercises performed 2 – 3 times per week for 8 – 12 weeks is an appropriate strategy to improve running economy in highly trained middle- and long-distance runners.

The 3-minute all-out exercise test (3MT) was developed over a decade ago and enables the estimation of time for onset of momentary fatigue for a given speed or power output exceeding critical speed (CS) or critical power (CP), respectively. The 3MT has been validated for conducting high-intensity interval training, used with load carriage prediction and prescription, and validated for shuttle running. These prescriptions are novel because they allow for standardizing exercise intensities relative to metabolic parameters as opposed to a percentage of a given maximum or reserve. Research was identified using leading search engines (e.g., PubMed, Google Scholar, and Research Gate) and citations to similar articles. The objective of this review article was to summarize research that emerged on the CS/CP concept with emphasis on applications since the advent of the 3MT. The review concludes with application of the CS/CP concept to the frequency, intensity, time, and type of exercise for exercise prescription.

This article from NSCA Coach explores how beet juice and nitrate supplements can enhance athletic performance. Learn more about nutrition and exercise physiology online at NSCA.com.

High-Intensity Resistance and High-Impact Training and Bone Mineral Density—a Narrative Review: Part 1