Rob Orr, co-lead of Bond University’s Tactical Research Unit, explains the differences in load carriage requirements and contexts between different tactical forces, and how to prepare tactical personnel for load-carriage tasks. This session from the NSCA’s 2018 Tactical Annual Training also looks at how to employ fitness assessments to determine future load carriage requirements.

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 article provides a first-hand account of the usage and benefits of dumbbell training programs with athletes.

This excerpt from NSCA’s Guide to Sport and Exercise Nutrition explains branched-chain amino acids

This article summarizes the adaptations of cartilage via anaerobic training.

Michol Dalcourt

This article explains how training age, training frequency, limb length, height, and relative strength relate to concentric barbell velocities at varying loads.

The aim of this article is to provide those working with tactical populations an introduction into tracking training load to mitigate injury risk while concurrently optimizing fitness.

This excerpt will briefly discuss the importance of exercise, dosage of the supplement, efficacy, body mass changes, and adverse effects of creatine.

This article is an overview of the Turkish get-up movement, as well as cues and drills to help in this movement.