Flexibility training is important because of the role that flexibility plays in improving movement performance and reducing the opportunity for injury. Learn more about the role of flexibility training in this exclusive excerpt from the book NSCA's Essentials of Personal Training, Second Edition, published by Human Kinetics.

Matthew Ibrahim, Co-Owner of TD Athletes Edge, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about using setbacks as a learning opportunity. Topics under discussion include creating a holistic approach to a client’s training by collaborating with other professionals, and the importance of deceleration technique and eccentrics in his programs for skill acquisition. Find Matthew on Instagram: @matthewibrahim_ | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This article briefly reviews the importance of the stretch-shortening cycle in power production.

Oxygen uptake (or consumption) is a measure of a person’s ability to take in oxygen and deliver it to the working tissues, and the ability of working tissues to use oxygen. During low-intensity exercise with a constant power output, oxygen uptake increases for the first few minutes until a steady state of uptake is reached.

Joe Siara, Manager of Peak Performance Programs for the New York Yankees Major League Baseball (MLB) team, joins NSCA Coaching and Sport Science Program Manager, Eric McMahon, to discuss the path from Minor League Baseball Strength and Conditioning Coach to sport scientist. The discussion includes a recap of the 2021 Professional Baseball Strength and Conditioning Coaches Society (PBSCCS) Baseball Sport Science Virtual Clinic, an explanation of the Certified Performance and Sport Scientist™ (CPSS™) exam development process, and practical applications of technology across a variety of performance settings. Find Joe via Email: jsiara@yankees.com | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This Kinetic Select excerpt from Developing the Core describes how to perform the medicine ball twist variation as a rotational core movement.

Learn about a unique path into strength and conditioning from J. Aggabao, the Associate Athletic Director of Sports Performance at Santa Clara University (SCU). Aggabao shares insights on coaching pathways and hiring, with NSCA Coaching and Sport Science Program Manager, Eric McMahon, that includes service in the United States Navy, working in the National Football League (NFL), and progressing into a department leadership role at SCU. From networking in the strength and conditioning field to beyond the campus and athletic communities, this episode speaks to various career stages, from aspiring strength and conditioning coaches seeking their first jobs, to experienced professionals aiming to become effective leaders. Reach out to Coach Aggabao on Instagram: @j.aggabao, or by email at jaggabao@scu.edu | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

The purpose of this article is to give an overview and theoretical framework on the concept of periodized nutrition—with an emphasis on adequate carbohydrate intake to enhance performance.

Lifestyle modification, including exercise, is important for both preventing and treating hypertension. More recent guidelines for treating hypertension have increased emphasis on lifestyle factors, such as exercise. As fitness professionals, it is important to educate and encourage clients with hypertension on the importance of exercise in their overall health.

As the second of a three part series, this article will focus on the Practitioner Pillars of LTAD, including relevant monitoring and assessment tools, as well as systematical progressions and individualized training programs for successful long-term physical development.