Although it may be possible to increase skeletal muscle levels of carnitine by combining it with relatively large amounts of carbohydrates repeatedly throughout the day, or by taking it with choline, there is limited data that shows that carnitine is a fat-burner that results in significant reductions in fat mass.

This article builds upon two other client assessment tools (breathing and posture, as seen in Personal Training Quarterly Issues 5.3 and 6.1, respectively) and discusses ways to assess client movement.

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.

Many personal trainers work with clients who are dealing with musculoskeletal pain that has negative consequences both on the client’s ability to exercise and their activities of daily living. This article discusses the different types of pain, and describes targeted approaches for training clients with persistent musculoskeletal pain.

Assessing clients is a vital component of the personal training experience. This article gives an overview of breathing mechanics and how to apply proper breathing exercises into a client’s assessment and program.

Due to the principle of specificity, training should be tailored to the goal of the lifter in terms of the prioritization of strength, hypertrophy, health, and functional outcomes. If the goal is muscular hypertrophy, it may be beneficial to vary the repetition range, and to utilize a variety of loads and loading strategies in the pursuit of maximizing hypertrophy.

This article aims to discuss concurrent activation potentiation (CAP) and the proposed mechanisms underlying it, summarize the available research examining the phenomenon, and provide strategies for its implementation.

This article is part of a continuing series of tactical strength and conditioning (TSAC) research reviews. It is designed to bring awareness to new research findings of relevance to tactical strength and conditioning communities.

This is my story of how a strength and conditioning coach influenced not only one of Pakistan’s up and coming cricket team’s approach to fitness and lifestyle, but also that of the wider community.

Football is evolving fast, and the coaches who keep pace are the ones who control what they can and win the little details. Ted Rath, Director of Sports Performance for the New Orleans Saints, reflects on over 15 years in the National Football League (NFL). He explains how training times, availability, and sheer athleticism have shifted with the game's expansion. Rath makes the case for gaining a well-rounded experience by coaching different sports, seeking knowledge, and being patient on your path. He also shares his linear progression approach to sport science that keeps new tools actionable and avoids technology overload. With players now arriving more educated and invested in their data, creating understanding and buy-in remains essential. Rath reveals that his coaching philosophy and culture starts with “leading yourself,” emphasizing ownership and helping others. Apply his perspective to protect availability, dial in the little details, and integrate sport science with purpose. Reach out to Ted on Instagram: @tedrathstrengthcoach | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Catch Ted’s session, “The Future of Training in Professional Football,” at the 2026 NSCA National Conference in New Orleans, July 8–11. Sign up early and save at NSCA.com/NSCACon.