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.

Matt Thompson gives an overview of different variations of the deadlift and their pros and cons.

David Crump describes how semi-private training can be an effective model for some studio and small gym owners to continue to grow their business and reach individuals.

Brent Alvar, PhD, CSCS,*D, RSCC*D, spoke at the NSCA's 2013 Personal Trainer conference on the evidence supporting resistance training for older adults.

Two of the key people that an injured athlete will communicate with are the strength and conditioning coach and the athletic trainer. This article examines the roles of these two professionals in directing an athlete from an injury through the complete rehabilitation program and back to full participation in their sport.

Learn how to cultivate a client-centered coaching mindset. In this session from the NSCA 2017 Personal Trainers Conference, Matt Berenc, Director of Education for Equinox Fitness Training Institute, explains how to create an optimal learning environment for the client in the training session and develop an authentic coaching presence and style that meets the needs of both the client and personal trainer.

Heart rate variability (HRV) testing is at the forefront of a wave of cutting-edge assessment tools that are becoming available to the personal trainer. In this session from the 2015 NSCA Personal Trainers Conference, Carmine Grieco provides an overview of the physiological background and dynamics of HRV, including the most current supportive evidence, with an emphasis on the practical application for personal trainers.

The NSCA is offering a new book that contains a holistic overview of the knowledge and skills required to support athlete and team performance as a modern-day sport scientist. Learn more here about this new resource.