Although fatigue is commonly experienced in many highly demanding occupations (e.g., military, first responders, etc.), it is poorly defined. Fatigue can strongly affect occupational performance by negatively influencing the ability to interact with the world by altering the capacity to think, move, feel, see, and speak. The first step in fatigue risk management strategies is to establish a context. The context of this narrative review is to specifically describe and discuss the 6 overarching types of occupational fatigue: cognitive, physical, burnout, emotional, visual, and vocal fatigue, and how each affects varying occupations. Furthermore, fatigue type can be influenced by several intrinsic factors, such as sleep deprivation, circadian alignment, ultradian process, sleep homeostasis, and health factors. Similarly, extrinsic factors influence fatigue, such as workload, shift work, and environmental issues. Understanding the types and contributors to occupational fatigue may help clarify the context of occupational fatigue and serve to guide future occupational fatigue management.

Specialist law enforcement resources are under constant strain to maintain operational and organizational outcomes. The high operational tempo disturbs many functions including skill enhancement, personal development, work/life balance, and time for physical conditioning.

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

This excerpt from NSCA’s Essentials of Sport Science briefly explains workload and injury risk factors.

This article is intended to provide an understanding of the demands of football from a bioenergetic perspective and provides a framework in which strength and conditioning professionals can design conditioning plans that focus on preparing athletes for competition.

This article from TSAC 76, describes first responder wellness and the effects of PPE on occupational performance. Visit NSCA online to learn about exercise science and tactical fitness.

The goal of this brief review is to describe what classifies as high-intensity interval training (HIIT) and summarize the potential benefits for various populations: athletic, general, and clinical.

The purpose of this article is to provide personal trainers an overview of training clients for their first Spartan Sprint event.

When isolating aerobic capacity as a determinant of performance, traditional interventions have focused on increasing an individual’s VO2max. Based on the large acute improvements from a single positive psychology research study, investigations into the application of integrated psychophysiological strategies to optimize performance should be explored.

The ability to manage the adaptive response, handle accumulated fatigue, and capitalize on the aftereffects established from training is central to the training process.