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.

Blood pressure changes acutely during resistance exercise. Continuous, beat-by-beat assessment provides detailed temporal resolution of blood pressure profiles, through techniques including intra-arterial catheterization, photoplethysmography, or applanation tonometry. However, noncontinuous measurements may be conducted before and after resistance exercise through auscultatory sphygmomanometry or oscillometry. Blood pressures tend to increase across repetitions within sets, influenced by load magnitude, repetitions and sets performed, muscle mass recruited, and rest periods; the highest pressures result from multi-joint, large muscle group exercises. Evaluation of such factors may facilitate better understanding of blood pressure responses to acute resistance exercise and influence program design considerations relative to anticipated hemodynamic changes.

Various methods of eccentric training that aim to increase muscle mass or reduce ground contact time during a landing task have been extensively researched and practically examined. However, multiple methods to implement eccentric training currently exist; they differ in execution and intended training adaptions. There is a clear differentiation between an eccentric muscle action and an eccentric motion whereby a motion alludes to a downward movement of an exercise. The proposed eccentric motions are dissipating eccentrics, deceleration eccentrics, overcoming eccentrics, maximal eccentrics, and rebound eccentrics. These motions formulate into training methods and cues to allow practitioners to clearly differentiate the various eccentric training methods used in research and practice. This review proposes a new conceptual framework that clearly outlines the different forms of eccentric motions that fall into a desired eccentric training method.

This excerpt from Developing Speed looks at how a fundamental understanding of the biomechanical principles that affect speed can assist coaches and athletes in developing running speed.

This excerpt breaks down the optimal positions of the body during acceleration and deceleration.

This Personal Trainers Quarterly article presents protein dosing strategies to maximize wellness for the aging population. Visit NSCA online to read more on nutrition, health, and wellness.

This article explores evidence-based nutrition practices for youth athletes, emphasizing hydration, dietary quality, and breakfast consumption to support long-term athletic development. Visit NSCA online to read more about sports nutrition and athletic development.

Time-restricted eating (TRE) is an application of intermittent fasting where an individual consumes their calories in a specific eating window (e.g., 8 hours) followed by a prolonged fasting window (e.g., 16 hours). Several randomized controlled trials have analyzed the combined effect of resistance training (RT) and TRE on physical adaptations, including fat mass (FM) loss, fat-free mass (FFM) retention, hypertrophy, local muscular endurance, power, and strength. In this mini review, we highlight the methodology and results from these studies and conclude by providing practical application suggestions for fitness professionals striving to maximize RT + TRE with their clientele. Generally, RT + TRE leads to positive body composition changes, including FM loss and FFM retention, which culminates in improved body fat percentage. Similarly, RT + TRE consistently stimulates positive neuromuscular adaptations, such as increased hypertrophy, local muscular endurance, power, and strength. When positive changes are not observed, and when safely implemented, RT + TRE rarely confers negative effects on the abovementioned adaptations. In short, RT + TRE may be a beneficial dietary and exercise strategy to improve body composition and muscular fitness. However, there are several caveats for practitioners to consider, which are discussed at length in this article.

Take a deep dive into force plate research and trends with “Force Plate Coach”, Dr. John McMahon from the University of Salford in England. In this episode, John discusses his path from Royal Marine Commando into strength and conditioning and biomechanics teaching and research. Listen in as John connects with NSCA Coaching and Sport Science Program Manager, Eric McMahon, on the past, present, and future of force plates in sport and the ways we can improve our testing and evaluation of athletes. This episode mentions the following paper from NSCA’s Strength and Conditioning Journal: McMahon, JJ, Suchomel, TJ; Lake, JP, and Comfort, P. Understanding the Key Phases of the Countermovement Jump Force-Time Curve, Strength and Conditioning Journal 40(4): 96-106, 2018 Find John on Instagram: @forceplatecoach, on Twitter: @ForcePlateCoach, and on YouTube: @ForcePlateCoach| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs