The purpose of this article is to examine components that affect speed to determine the degree that speed is governed by skill versus genetic factors.

This article examines how training the core and performance are connected. This article seeks to help propose how to best use the literature to maximize understanding and use of the current concepts.

Alex Calder, Head of Sports Science for the Houston Dynamo Major League Soccer (MLS) team, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about sports science data driving better decisions on and off the field. Topics under discussion include the importance of traditional strength training for soccer players, as well as, the variety of strength and conditioning opportunities there are to gain experience from at the high school, college, private, and professional level of sports. Find Alex on Twitter: @calder_05 or Instagram: @calder_05 | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Drew Hammond, Army Holistic Health and Fitness (H2F) Program Director at Fort Bragg, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about differences between tactical and collegiate strength and conditioning. Topics include the Army H2F Program, tactical athlete programming, and how to pursue military strength and conditioning positions. Find Drew on LinkedIn: Drew Hammond | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

The goal of this brief review is to describe what classifies as high-intensity interval training (HIIT) and summarize the potential benefits for various populations: athletic, general, and clinical.

Mandy Nice explains the benefits and need of expanding health and fitness programs into military and law enforcement agencies, and offers strategies for the common obstacles preventing implementation of these programs.

Chris Morris, Director or Performance Science at the University of Kentucky, talks to the NSCA Coaching Program Manager, Eric McMahon, about the importance of capturing athlete readiness through data and technology. Topics under discussion include Dr. Morris’s time as a University of Kentucky football player turned PhD student, how sports science is critical to understanding athlete’s capacities on a much deeper view, and developing interpersonal relationships with athletes to create trust and buy-in. Find Dr. Morris on Twitter: @CMorrisPhD | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

This article is part of a continuing series of tactical strength and conditioning (TSAC) research reviews. It is designed to bring awareness to new research findings of relevance to tactical strength and conditioning communities.

Kevin Neeld, Head Performance Coach of the Boston Bruins National Hockey League (NHL) team, joins the NSCA Coaching Podcast to share about strength and conditioning practices in the NHL. Neeld connects with NSCA Coaching and Sport Science Program Manager, Eric McMahon, on his path to working in professional hockey, the involvement of strength and conditioning at the annual NHL Draft Combine, and the partnership between the Strength and Conditioning Association of Professional Hockey (SCAPH) and the NSCA. The discussion includes perspectives for aspiring coaches about working in professional hockey, on-ice and off-ice training, and the recent growth of performance staffs. Connect with Kevin on Instagram: @kevinneeld or Twitter: @KevinNeeld| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Learn from a coach who took his career from working with Winter Olympic and professional sport athletes to success in the private sector. In this episode, Bret Kelly of Exos and formerly United States Ski and Snowboard, shares about his journey and the need for coaches to remain versatile in growing their professional skills in the field. Tune in as Kelly connects with Eric McMahon, the NSCA Coaching and Sport Science Program Manager, on seeking out opportunities to work in niche Olympic sports, the growing uses of performance technology, and the value of building a strong support staff. Find Bret on Instagram: @bk_strengthcoach and on Twitter: @bret_kelly_ | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs