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.
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.
This article covers commonly used terminology from United States of America Weightlifting (USAW), plus it contains illustrations of the basic positions for weightlifting exercises.
Knowing the risks of cold weather training is only half the battle. It is important to be familiar with a proper risk management strategy to help guide decision-making that can enhance safety and exercise performance.
This excerpt explains the role that lactate plays in exercise metabolism and how that information is useful for athletes to predict things like pacing, fitness, and efficacy of training programs.
Personal trainersTSAC FacilitatorsCoachesExercise ScienceProgram designTesting and Evaluation
Learn the basics of conducting a needs analysis for tactical athletes based on the athlete’s goals and desired outcomes, assessments, limitations on workout frequency and duration, equipment availability, health and injury status, and occupational physiological demands.
TSAC FacilitatorsProgram designTesting and Evaluation
This PTQ article focuses on the use of the back squat along with innovative technology to measure velocity during lower body lifts. Visit NSCA online to read more on personal training news and athletic performance.
Personal trainersExercise ScienceExercise TechniqueProgram designOrganization and AdministrationProfessional Development
The VO2max test is the most effective measurement of the body’s ability to deliver and use oxygen for producing energy that can be used by the muscles. VO2max (i.e., maximum aerobic power) simply stands for the maximal volume of oxygen that can be used.
Field tests have become popular in applied exercise science and sport performance enhancement programs because of their simplicity and ability to generalize results. However, numerous confounding factors may influence the validity of test data from such evaluations.