The aim of this article is to provide an overview of the research on multi-ingredient pre-workout supplements (MIPS) and help practitioners become educated consumers when evaluating the various formulas and products on the market for making recommendations to clients or athletes.

This review analyzes relevant variables involved in acute interference effects of concurrent training (CT) sessions of aerobic exercise followed by strength exercises. The aerobic exercise intensity, mode, volume, duration of recovery interval between exercises, muscle groups involved, and utilization of ergogenic aids are the variables identified in this review. High-intensity interval aerobic exercises result in more pronounced negative effects on strength-endurance exercise but not in maximal strength. Cycling results in more negative effects on strength endurance performance exercise than running. A 4-hour to 8-hour recovery interval seems to be enough to avoid interference on strength-endurance performance. Reduction in strength-endurance performance is located in muscle groups involved in both exercises. Low aerobic exercise volume (3 km) with; 18 minutes of duration does not diminish strength endurance, whereas higher volumes (5 and 7 km) with ;30 and ;42 minutes of duration, respectively, generate impairments. Caffeine, carbohydrate, and beta-alanine are not able to revert the deleterious effect on strength-endurance performance, whereas creatine and capsaicin analog supplementation are. Thus, these variables must be taken into consideration to prescribe and organize a CT session. This information may help coaches to organize exercise sessions that minimize or avoid the impairment in strength performance after aerobic exercises.

Advances in Sports Nutrition: The Latest in Nutrition, Supplementation, Relative Blood Work and Gene Testing on All Aspects of Athletic Performance

Do you know what is in your client’s pre-workout drinks? This article discusses the most common individual ingredients typically found within pre-workouts and describes “the good, the bad, and the ugly” associated with its usage.

This excerpt briefly describes key aspects of this nonessential amino acid including its effect on the body, efficacy, and adverse effects.

Eating a diet rich in leucine and supplementing HMB may be beneficial for tactical athletes as long as they are following the recommended guidelines.

This article aims to offer guidance on the effects of certain medications, as well as help personal trainers and their clients in the consultation process with qualified physicians and pharmacists.

This excerpt from NSCA's Guide to Sport and Exercise Nutrition briefly discusses micronutrients and their role in optimal athletic performance.

This TSAC Report article discusses the training load of GPS technology and blood lactate monitoring for first responders. Visit NSCA online to learn more about tactical fitness.

The purpose of this article is to identify considerations that are to be taken into account when designing and implementing an annual training program for firefighters, as well as to discuss strategies for implementation.