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.

Are you looking for assistance in studying and preparing for the NSCA Certified Strength and Conditioning Specialist (CSCS) and NSCA-Certified Personal Trainer (NSCA-CPT) exams? Check out NSCA Exam Prep Live Clinics! These in-person educational clinics are offered in three formats: 1.5-Day, 2-Day and 3-Day options with a blend of classroom lecture and hands-on training.

In this session from the 2020 NSCA Coaches Conference, Matt Nein, Coordinator of Sports Performance at Salisbury University, discusses his fluid periodization model for coaches to use to easily adapt to the changing situations on a week-to-week (or even day-to-day) basis, and still optimize training for the athletes.

Learn more about coaching and training pre- and post-natal women from Molly Galbraith at 2020 NSCA Personal Trainers Virtual Conference

Learn, participate and network with colleagues at while earning CEUs.

This system is designed to make it easier for you to develop effective and periodized exercise programs for your athletes and clients. From pre-formatted Excel spreadsheets with drop down options, to Quick Tip exercise videos with coaching cues, Program Design Essentials is your partner for professional-level training and coaching. Be sure to watch the video tutorial below and consult NSCA’s Foundations of Fitness Programming before beginning the process.

In this video from the 2022 NSCA National Conference, Allison Randall discusses effective instructional strategies for coaches to utilize to promote psychomotor skill acquisition and performance in student-athletes.