This excerpt from Developing the Core briefly defines closed- and open-chain exercises and their respective roles in training.

Casey Kramer, Assistant Strength Coach for the Chicago Bears National Football League (NFL) team, talks to the NSCA Coaching Program Manager, Eric McMahon, about working with tactical, Olympic sport, and professional football athletes. Topics under discussion include advice for young coaches, scheduling strength and conditioning sessions in the NFL calendar, and different qualities coaches should seek to have outside of the weight room. Find Casey on Instagram: @caseykramer12| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

The purpose of this article is to examine the critical role of core stability in soccer performance.

Traditional lower-body resistance exercise alone may not be an optimal means of developing agility. Further, the effectiveness of straight-sprint training on agility performance has not been well established. In contrast, jump training, including loaded jump squats and horizontal and lateral jumps, holds promise.

A qualified strength and conditioning professional in the high school environment can benefit both the school and the students in a number of ways, including injury reduction, improved performance, and risk management.

Learn how diet and strength training in the absence of aerobic exercise can be used to improve body composition through simultaneous fat loss and muscle gain. In this session from the NSCA’s 2016 Personal Trainers Conference, Todd Miller demonstrates how to use body composition and metabolism measurements along with popular food tracking apps and activity monitors to design individualized diet and exercise strategies. CEUs available.

What's behind enduring success at the highest level of college athletics? Kate Smith, Head Strength and Conditioning Coach at the University of Michigan, shares insights from nearly 14 years of experience coaching multiple sports in a competitive collegiate environment. Smith emphasizes sustained excellence through adaptability, genuine curiosity, and openness to opportunities — even outside of athletics. Drawing on her private-sector experiences, she explains how diverse roles helped shape her flexible, athlete-centered philosophy. Smith candidly addresses current collegiate challenges, including navigating Name, Image, and Likeness (NIL) distractions and adjusting motivational strategies across team cultures and generations. As a Certified Performance and Sport Scientist® (CPSS®), Smith highlights how integrating data-driven insights helps her create a more effective training environment. This expertise uniquely positions her to bridge athletics with academics, deepening collaboration on campus-wide performance initiatives. Learn how to implement practical strategies for keeping athletes engaged amidst external pressures, leverage performance data meaningfully, and continually refresh your coaching approach. Connect with Kate via email at kannehay@umich.edu and on Instagram: @katehaycock | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs

This infographic summarizes how varying sled-loads increase different characteristics of sprint performance in male high school athletes.

Examine the scientific rationale underpinning the 10 pillars of long-term athletic development proposed in the recently published NSCA position statement. In this session from the NSCA’s 2016 National Conference, Rhodri Lloyd demonstrate how the scientific principles surrounding the 10 pillars of long-term athletic development can be applied by coaches in a practical setting.

Strength and conditioning professionals have a finite time to develop their athletes or clients. Too often the first 10 – 15 min of sessions are under-coached and poorly structured. In this session from the 2015 NSCA National Conference, Coach Emily Nolan explores ways to maximize the use of warm-ups.