One resistance training variable that may be altered to achieve desired outcomes is the range of motion used in training. Generally, the strength and conditioning field has accepted that using a greater range of motion in strength training exercises results in more substantial muscle hypertrophy outcomes. However, this theory has proved to be inconsistently supported in the literature, and to date, no sufficient explanation exists to explain this phenomenon. This review article seeks to outline a novel approach for potentially describing the disparities seen in range of motion research with respect to hypertrophy outcomes by applying the unique length-tension curve of each muscle being examined. As will be discussed in the review, virtually all the results from range of motion studies in various muscles have corresponded to each muscle’s length-tension curve; muscles that are active on the descending limb of the curve appear to garner greater hypertrophy from using larger ranges of motion. Conversely, muscles that are not active on the descending limb exhibit similar adaptations despite alterations in range of motion. A novel hypothesis for applying this information to resistance training programs will be presented and discussed.

Contrary to popular belief, you do not need to “pump iron” to build muscle. In this session from the NSCA’s 2015 Personal Trainers Conference, Nick Tumminello explains that to build muscle you need to create a training stimulus that elicits the three mechanisms for muscle growth. In other words, building muscle is not about the specific exercises you do, it is about the specific stimulus you create.

This infographic discusses factors to consider when training to muscle failure.

This Kinetic Select from Developing the Core reviews the effects of muscle activity when performing exercises on unstable surfaces.

This infographic looks at the percentages of optimal muscle activation in variations of the hip thrust.

Learn how to recognize and treat muscle dysmorphia in your athletes. In this session from the NSCA’s 2017 Personal Trainers Conference, James Leone covers many facets of athlete muscle dysmorphia, including the clinical features, identifying at-risk populations, using assessment tools, managing athletes suspected of having muscle dysmorphia, and how to treat it using a team-based approach.

There is a sound theoretical rationale supporting a potential role for muscle damages in the hypertrophic response, but a cause-effect relationship directly linking these gains to muscle damage is yet to be established. If such a relationship does in fact exist, it is not clear as to what extent of damage is optimal for inducing maximum muscle growth.

This article provides a brief overview of literature where regional hypertrophy was reported. It also discusses the basic science and application of regional hypertrophy training.

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