Interlimb asymmetries have been recently investigated in athletic populations. However, the effects of training interventions on interlimb asymmetries have been scarcely examined. Therefore, the aim of this study was to determine the effects of training interventions on changes in interlimb asymmetries from pre- to post-training. Furthermore, to examine the effects of training programs on intervention groups compared with control groups. A database search was completed (MEDLINE, CINAHL, and SPORTDiscus). Eight studies were then included in the meta-analysis. Results showed small reductions in interlimb asymmetries in single-leg broad jump (SLBJ) and change of direction (COD) speed from pre- to post-training interventions, whereas moderate effects were found in single-leg countermovement jump (SLCMJ) and SL lateral jump. When comparing the training interventions with the control groups, results showed small effects in favor of the training groups for reducing interlimb asymmetries in SLBJ and large effects in SLCMJ and COD speed. Thus, training interventions can evoke small to moderate reductions in interlimb asymmetries from pre- to post-training programs. Strength training performed unilaterally or bilaterally may elicit these reductions. Furthermore, training interventions showed larger effects compared with the control groups in reducing interlimb asymmetries. However, further research is needed.

Catch up on this presentation from the 2024 NSCA Coaches Conference with Major League Baseball (MLB) Tampa Bay Rays Strength and Conditioning Coach, Joey Greany. Greany takes NSCA Coaching Program Manager, Eric McMahon, on a deep dive into plyometrics for a wide range of athletes. He also shares the importance of professional development for strength and conditioning coaches. Tune in to learn in-season training tips and how the NSCA inspired Greany’s path to the Big Leagues. As mentioned in the episode, here is a link to learn more about the Professional Baseball Strength and Conditioning Coaches Society (PBSCCS). Connect with Joey on Instagram at: @joeygreany | Find Eric on Instagram: @ericmcmahoncscs or X (Twitter): @ericmcmahoncscs

This article highlights the scientific evidence on exercises like the seated leg extension, leg curl, and adduction machines to highlight their potential benefits on enhanced performance and potentially reducing injury risk.

Brendon Rearick

This video demonstrates proper landing technique for a box jump, as well as common errors and a progression for teaching proper landing technique.

This book excerpt explains how to perform the box step-off landing assessment, which is used to determine an athlete’s readiness before beginning a program in agility and quickness.

CC22

This excerpt from Developing the Core discusses two testing methods that may predict a strong or weak core based on how well the participant completes the task.

This book excerpt is an overview of the fundamentals to sprinting mechanics and technique. It also covers starting, acceleration, drive phase, recovery phase, and deceleration.

Access the videos to the 2017 NSCA Training for Combat Sports Clinic, held September 22-23, 2017 at the new UFC Performance Institute in Las Vegas, NV. This two-day clinic brings together elite strength and conditioning coaches from the worlds of boxing, judo, mixed martial arts, and other Olympic combat sports to give you the most cutting-edge topics and best practices in strength and conditioning for combat sports.