This Personal Trainers Quarterly article promotes the benefits of walking to boost physical activity and improve overall health outcomes. Visit NSCA online to read more on health science and low-impact exercises.

Supplements that claim to boost nitric oxide have not been proven to be all that effective since the actual conversion in the blood cell is rather complicated and requires oxygen, which is usually in short supply during exercise or at high altitude. So how does an athlete boost their nitric oxide production?

Concussion is a concerning injury and recovery can last days, weeks, or even months. Becoming familiar with post-concussion symptoms and the ensuing health-related sequelae is essential for those aiming to optimize the physical performance of tactical athletes.

Although most resources on program design review the foundational scientific principles of training, they often fail to provide practical strategies that strength and conditioning professionals need in order to apply these principles successfully. To help bridge the gap between science and application, this article provides a simple and practical, step-by-step system for applying the scientific principles of training into the program design process.

There is no argument that periodization is successful, and that different models can be applied with success in different fashions. The question of how shift work really affects a periodized program—more specifically firefighter shift work—is less clear.

The purpose of this article is to propose a training model for the aging firefighter to improve the athletic qualities of aerobic fitness and muscular strength so that they may remain healthier longer into their careers.

This article summarizes the relevant literature regarding post-workout nutrient timing and its importance to training adaptations, specifically increasing skeletal muscle hypertrophy and replenishing skeletal muscle glycogen stores.

This is the second part of a two-part series that investigates the effects of dietary carbohydrate availability on exercise performance and how specifically timed restriction of carbohydrates may also paradoxically enhance exercise performance in the medium and long term.

This article explores the possible causes of low back pain, as well as three potential strategies that a personal trainer may use to work with someone dealing with low back pain.

In addition to standard health, fitness, or sport assessment guidelines, several guidelines exist for the fire service. Since each agency is different in its preferences, capabilities, and philosophies, applying a standard recommendation may not be possible. This article introduces basic decision-making considerations for fire service assessment batteries.