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Notice: The NSCA website is scheduled to undergo system maintenance from 2:00 AM - 2:30 AM EST. During this time, there may be short service interruptions across the site and some parts of the site may not be accessible. We apologize for any inconvenience while we work to improve the website experience and security.
Knowledge of metabolic rate can help athletes as well as health-conscious people improve their exercise performance or obtain the fat-to-lean-mass ratio optimal for their personal situations. Two examples of how this works follow.
Learn to identify and combat risk factors among high stress tactical personnel; how they affect performance, sleep, and recovery; and how to begin managing stress. In this session from the 2016 TSAC Annual Training, Jeff Nichols explains how to lay out a clear and concise process to evaluate stress and create a plan specific to each individual to combat the negative side effects of stress.
The catecholamines—primarily epinephrine, but also norepinephrine and dopamine—are secreted by the adrenal medulla and are important for the acute expression of strength and power because the hormones act as central motor stimulators and peripheral vascular dilators to enhance enzyme systems and calcium release in muscle.
Knowing when to train and how much time to devote to training each of the three energy systems is an important ingredient of success in endurance sports. This knowledge is also reflected in a well-designed and scientifically-based training plan.
The periodization of training is facilitated by a hierarchical structure that allows for several distinct interrelated levels that can be used in the planning process. Each level of the periodization process should be based on the training goals established for the athlete or team.
The loading intensity a person chooses depends on his or her goals and training status (i.e., whether the person is a trained athlete or a sedentary individual). Ultimately, the number of repetitions you can perform at a given intensity or load determines the effects of training on strength develop.
Personal trainersTSAC FacilitatorsCoachesExercise TechniqueProgram design
Oxygen uptake (or consumption) is a measure of a person’s ability to take in oxygen and deliver it to the working tissues, and the ability of working tissues to use oxygen. During low-intensity exercise with a constant power output, oxygen uptake increases for the first few minutes until a steady state of uptake is reached.