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.

Developing safe and effective exercise training programs requires the application of abundant training variables and the implementation of appropriate progression for each variable. Importantly, the outcomes of each training program are the product of these variables and their progression, so practitioners are keen to select methodologies and overload strategies that effectively support their target training outcomes. One such training variable is mechanical loading, which describes the forces of gravity, resistance, and muscle contraction and how these forces affect musculoskeletal adaptations. Numerous research articles and texts have been published regarding mechanical loading and its effects on exercise adaptations; however, these findings can be arduous to organize, which requires additional time investment by professionals. Developing a succinct system is critical because practitioners face clients and patients with a wide range of physical skills and challenges, and having an easily referenced loading guide may assist them in designing appropriate strength and conditioning or rehabilitation programs. Thus, the purpose of this review is to define and describe the mechanical loading continuum and its individual components to better assist the practitioner in identifying appropriate exercise modes and progression strategies.

Resistance training or strength training has become one of the most popular forms of exercise, because it is the only method capable of improving physical fitness and increasing muscle mass simultaneously. Among the variables of training, the relationship between intensity and volume has been extensively addressed to enhance exercise induced muscular hypertrophy. For many, mechanical stress is seen as a factor of greater relevance and, because high loads promote greater mechanical tension and high intensities are traditionally used to increase muscle mass. However, evidence has shown greater safety and similar results through training based on lower intensities and increased training volume. Thus, this narrative review aimed to search the current literature for evidence on using different training loads to promote muscle hypertrophy. An extensive nonsystematic literature review was conducted in the PubMed, Google Scholar and Scielo databases. It was possible to conclude that the use of high and low intensity promotes similar results in muscle hypertrophy in all groups, leading to the belief that there is greater safety and adherence to the use of lower intensities compared with close effort to concentric failure.

NSCA has a network of volunteer leaders who direct NSCA’s efforts at the state level. NSCA’s Mid-Atlantic Regional Coordinator provides oversight and training to local state directors. Members in the Mid-Atlantic Region can connect at local and regional events as well as on Facebook to others in this area.

This article briefly explains the two principles necessary for muscle growth.

This article discusses the findings of a recent study on the effectiveness of a time-efficient occupationally-specific training program to improve performance in qualities related to physically demanding tactical tasks in law enforcement officers.

This three-part series shows how personal trainers can create a physically literate cradle-to-grave culture for all, with LTAD as the framework.

The purpose of this article is to identify and discuss some barriers and benefits of training initiatives among professional firefighters.

Dave Forman, Director of Strength and Conditioning at Virginia Military Institute, talks to the former NSCA Head Strength and Conditioning Coach, Scott Caulfield, about becoming a strength coach. Topics under discussion include communication with athletes, appreciating the growth as a coach over time, and creating lasting impressions and relationships with athletes. Find Dave on Twitter: @VMIStrength

What's behind enduring success at the highest level of college athletics? Kate Smith, Head Strength and Conditioning Coach at the University of Michigan, shares insights from nearly 14 years of experience coaching multiple sports in a competitive collegiate environment. Smith emphasizes sustained excellence through adaptability, genuine curiosity, and openness to opportunities — even outside of athletics. Drawing on her private-sector experiences, she explains how diverse roles helped shape her flexible, athlete-centered philosophy. Smith candidly addresses current collegiate challenges, including navigating Name, Image, and Likeness (NIL) distractions and adjusting motivational strategies across team cultures and generations. As a Certified Performance and Sport Scientist® (CPSS®), Smith highlights how integrating data-driven insights helps her create a more effective training environment. This expertise uniquely positions her to bridge athletics with academics, deepening collaboration on campus-wide performance initiatives. Learn how to implement practical strategies for keeping athletes engaged amidst external pressures, leverage performance data meaningfully, and continually refresh your coaching approach. Connect with Kate via email at kannehay@umich.edu and on Instagram: @katehaycock | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs