Marquis Johnson, Assistant Strength and Conditioning Coach with the Minnesota Vikings National Football League (NFL) team, and Bryan Doo, former Head Strength and Conditioning Coach of the Boston Celtics National Basketball Association (NBA) team and owner of Optimal Fitness, join as guests with the NSCA Coaching and Sport Science Program Manager, Eric McMahon. Also returning for this Gatorade Performance Partner collaboration episode is guest co-host Jon Jost, a 27-year veteran college strength and conditioning coach and the Team Sports Manager for Gatorade. Join this fun group of strength and conditioning coaches from across the industry as they discuss what it means to be successful, as well as how they are reshaping the different career paths within the field. Connect with Marquis on Instagram: @quis_fit | Reach Bryan on Instagram: @bdoostrength or Twitter: @bdoo22 | Email Jon at: jonathan.jost@pepsico.com | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs To learn more and join the Gatorade Performance Partner Community, visit GatoradePerformancePartner.com.

The purpose of this article is to compare the effects of quarter, parallel, and full depth squats on muscle activity, joint stress, athletic abilities, and potential injury risks for the consideration of all strength and conditioning professionals.

This article will analyze and compare squats with different loading positions to draw out practical applications for the personal trainer.

Josiah Igono, Director of Peak Performance for the Texas Rangers Major League Baseball (MLB) team, talks to the NSCA Coaching and Sport Science Program Manager, Eric McMahon, about what defines performance. Topics under discussion include the importance of coaching mental skills, diversifying your skillsets as a coach, and leaving a legacy. Find Dr. Igono on Instagram: @josiahigono or Twitter: @JosiahIgono | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Hear from Bri Kanz, Assistant Athletic Director of Sports Performance for Santa Clara University. Kanz connects with NSCA Coaching and Sport Science Program Manager, Eric McMahon, on key stops along her professional path, including her most recent position at Stanford University. Learn how injury inspired Kanz to pursue strength and conditioning, about her move to the West Coast, and her enthusiasm for Olympic sport strength and conditioning. Kanz shares her insight on what it takes to be an effective strength and conditioning coach and where she sees the field going in the future. Connect with Bri on Instagram: @brikanz| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Biofeedback is a tool that not everyone knows about, yet many coaches and athletes could benefit from using it. This article will describe the psychophysiological principle, introduce biofeedback, and provide descriptions of two biofeedback modalities that may be useful for strength and conditioning professionals to improve performance.

Jason Loscalzo, Head Strength and Conditioning Coach for the Chicago Bears National Football League (NFL) team, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about his journey from a college to NFL strength and conditioning coach. Topics under discussion include networking, diversifying your portfolio, and coaching philosophy. Find Jason Loscalzo on Twitter: @jason_loscalzo| Find Scott on Instagram: @coachcaulfield

Hunter Schurrer, Contracted Human Performance Specialist for Fort Lewis Washington 1st Special Forces Group talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about Coach Schurrer’s experience working with collegiate athletes, his mentors at the beginning of his S&C career, and his transition from D1 athletics to Tactical Strength and Conditioning. Topics under discussion include coaching colligate athletes, transitioning to the tactical setting, and training special forces groups.

As some of the most influential people in athletes’ lives, coaches can play a powerful role in keeping sport clean by helping athletes understand and act upon their anti-doping responsibilities. These Coach’s Advantage videos cover the latest anti-doping information.

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.