In this episode, Lilly Bernardi, Assistant Strength and Conditioning Coach at Hofstra University, talks to Eric McMahon, the NSCA Coaching and Sport Science Program Manager, about her journey from being an athlete to becoming a coach. Bernardi shares sentiments over losing her senior lacrosse season as a college athlete during the COVID-19 pandemic, and how it has fueled her motivational approach in coaching. The episode highlights the importance of building confidence as a young professional and adopting a growth mindset for career development. Additionally, the conversation delves into social media etiquette for coaches in the age of information sharing. Connect with Lilly on Instagram: @lilly_bernardi1 or by email: lilly.a.bernardi@hofstra.edu| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

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.

This excerpt from NSCA’s Essentials of Sport Science highlights the importance of quantifying training load for both programming and monitoring an athlete’s progression or regression over time.

Colorado Springs, CO – Coaches Bill Foran, Jeff Connors, and Domenic Reno recognized for their career accomplishments at the National Strength and Conditioning Association’s Coaches Conference on January 4, 2017 in Nashville, TN.

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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.

During the initial interview, the personal trainer and client assess compatibility, develop goals, and establish a client-trainer agreement.

This is an excerpt from NSCA's Essentials of Sport Science by NSCA -National Strength & Conditioning Association, Duncan N. French & Lorena Torres-Ronda.