This excerpt from Developing the Core briefly defines closed- and open-chain exercises and their respective roles in training.

Ankle injuries are very common and their incidence potentially can be reduced or prevented if the person has a better sense of foot position if proper footwear is worn while exercising.

Kevin Neeld, Head Performance Coach of the Boston Bruins National Hockey League (NHL) team, joins the NSCA Coaching Podcast to share about strength and conditioning practices in the NHL. Neeld connects with NSCA Coaching and Sport Science Program Manager, Eric McMahon, on his path to working in professional hockey, the involvement of strength and conditioning at the annual NHL Draft Combine, and the partnership between the Strength and Conditioning Association of Professional Hockey (SCAPH) and the NSCA. The discussion includes perspectives for aspiring coaches about working in professional hockey, on-ice and off-ice training, and the recent growth of performance staffs. Connect with Kevin on Instagram: @kevinneeld or Twitter: @KevinNeeld| Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

To operate at the highest level possible, tactical athletes should train for the validated physical abilities applicable to their respective positions as identified by applicable subject matter experts.

Tactical athletes, due to the nature of their jobs, may have sleeping problems (such as falling asleep and/or staying asleep) which is indicative of poor sleep quality. This article shares sleep hygiene strategies that can help tactical athletes achieve better rest.

The purpose of this article is to provide warfighters and tactical facilitators with an evidence-based approach to improve maximal strength and power using the trap bar deadlift as it relates to combat preparedness.

Live high/train low: what changes can be expected, what dose is required, and is it preferable to other training models for improving performance in endurance sports such as running, swimming, and cycling?

This article provides guidance on designing strength and conditioning programs for male collegiate trampolinists by combining the available sport science with practical coaching experience.

This excerpt from Developing Speed describes an agility drill that aims to develop acceleration and defensive positioning.