Strength and conditioning coaches who systematically progress specific training variables, including games, can help youth improve performance and reduce the risk of injury.

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.

By examining a practical approach to programming fundamentals based on a needs analysis and training objectives relative to the program, a foundational plan can be laid that may lead not only to the appropriate progression of a given officer but also to the mutual satisfaction of the trainer and trainee alike.

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.

Rhodri S. Lloyd, lead author of the LTAD Position Statement, provides an abbreviated look at what long-term athletic development is and how strength and conditioning professionals can implement effective training strategies into programming to improve health, well-being, and growth.

For emerging athletes to move properly and develop athletic skills, they must first develop proficiency in fundamental motor skills. The ABCs of athleticism, therefore, must reflect the development of fundamental motor skills first, and specific athletic skills second.

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 TSAC Report article discusses the training load of GPS technology and blood lactate monitoring for first responders. Visit NSCA online to learn more about tactical fitness.

This article seeks to explain monitoring body composition, including how to assess it properly for an accurate evaluation to minimize errors in body fat estimation and maximize physical training.

The purpose of this article is to help both personal trainers and clients with seven main concepts within exercise physiology that will improve training effectiveness and assist in explaining the body’s response to exercise.