Multidirectional ground reaction forces (GRFs) and jump tests within baseball pitchers provide insight into athletic ability and coordination to produce lower-body force and power. Lower-body power is a biomechanical feature that denotes physiological capacity through dynamic and passive tissue stretch-shortening in transferring energy from the ground through the kinetic chain. Optimized lower-body power may lessen the magnitude of forces on the upper extremity. Insufficient lower-body power may create a greater risk of upper-body injury. Lower-body power and its relationship to ball velocity have been minimally investigated, yet some research points to a correlation between jumping ability and fastball velocity. Because pitching is unilateral, practitioners should consider unilateral jumps to determine the extent of bilateral asymmetry or stride to drive leg differences that can guide training to remediate deficiencies. The purposes of this brief review are to (a) examine factors that influence vertical jump performance among baseball players, (b) examine research on pitching multidirectional GRFs, and (c) examine literature concerning jump performances to baseball pitching performance. Collectively, this review can assist coaches and practitioners in lower-body power testing and training for baseball pitchers.

Considering the great popularity of eccentric-based training, the purpose of this review is to first provide the scientific rationale for its use; second, summarize the eccentric-based training modalities that can be used; and finally, offer practical recommendations on how to implement eccentricbased modalities to enhance sports performance. The molecular and neural mechanisms underlying eccentric actions are partially distinct from those of concentric and isometric actions. During eccentric actions, theories suggest a strain-induced modulation of actin-myosin interactions at the crossbridge level, activation of structural protein titin, and winding of titin on actin. Eccentric acute physiological responses differ from concentric exercise responses, including variations in neuromuscular, metabolic, hormonal, and anabolic signaling. Eccentric training elicits greater improvements in muscle strength, power, and stretch-shortening cycle function compared with concentric-only or traditional resistance training. Therefore, eccentric-based training can lead to unique neuromuscular (e.g., improved coordination of motor units) and morphological (e.g., increased muscle fascicle length and enhanced distal cross-sectional area) adaptations that could play a key role in sport performance. Practitioners may implement eccentric exercises with external loads, fully eccentric-based exercises (e.g., Nordic hamstring curl), accentuated eccentric loading, flywheel resistance exercise, and plyometrics to develop specific physical adaptations in line with their goals. Eccentric work (e.g., for hamstrings) can be obtained during other exercises such as downhill running tasks, decelerations, and sprinting activities. Practitioners need to be aware that no single “silver bullet” training modality exists; consequently, practitioners should use a combination of eccentric-based training approaches with their athletes to obtain the desired adaptations.

Clayton Kuklick, coaching researcher at the University of Denver, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about what it truly means to be a master coach. Topics under discussion include motor learning, practice design, mentorship in coaching, and coaching standards.

Elite sport often gets more attention, but youth training gives strength and conditioning coaches an earlier chance to build athletes’ competence and confidence. Kelli Brightwell specializes in youth development and brings more than a decade of sports training experience, including four years at Michael Johnson Performance. Brightwell defines peak height velocity as the period during which height increases fastest. She then explains why its timing can differ among teammates of the same age. So what should strength coaches test, and what do the results mean? The answer changes with each athlete’s maturity and training experience. Brightwell addresses the growth-spurt “awkward phase,” when familiar movement patterns can break down as an athlete adjusts to a changing body. She also considers how sport sampling can expand children’s range of physical skills and help them discover what they enjoy. Learn how maturation can affect movement, testing, and programming — and why young athletes need foundations before specialization.

September 22-23,2020 | The conference committee handpicked 12 sessions considered hot topics for 2020.

All fitness components depend on body composition to some extent, and the demands of many sports require that athletes maintain standard levels of body composition.

Learn about middle school and high school strength and conditioning from 2022 NSCA Coaches Conference presenter Elton Crochran. Coach “Croc” shares his story about transitioning from collegiate strength and conditioning to his work as the Strength and Conditioning Coordinator at Randolph Field School District in San Antonio, TX. Crochran is currently the Head Strength and Conditioning Coach at Veterans Memorial High School. He talks about his hands-on coaching session from Coaches Conference, as well as developmental milestones across key stages of long-term athlete development. Find “Coach Croc” on Instagram: @ecrock2 or Twitter: @TheCrocShow| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

In the intercollegiate athletic setting, the strength and conditioning coach can play a role in the development of student-athlete leadership. For the strength and conditioning coach to be a positive contributor to this effort, he or she must have a clear understanding of their role, the role of the sport coach, and the interaction and relationship between the two.

Ankle sprains are an extremely common injury of both sports and everyday life. In the post-rehabilitation setting, it is important to first identify and then address deficits in ankle, hip, and knee range of motion and strength.

The purpose of this article is to discuss the different opinions regarding the validity of early sport specialization as opposed to diversification, specifically the effect these two methods have on injuries, motor development, skill acquisition, and social and psychological aspects.