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.
This article discusses how personal trainers can utilize the strength zone training system in order to develop true full range of motion strength, and thus help clients perform better and further reduce injury risk.
Potentially, an instability training program that first involves static balance and then progresses to dynamic balance activities would improve intrinsic balance. This improvement in balance would increase movement confidence, releasing the neuromuscular system from a stiffening strategy to more unimpeded motion, force, and power development.
Personal trainersTSAC FacilitatorsCoachesExercise TechniqueProgram design
Dr. Lonnie Lowery spoke at the NSCA's 2012 National Conference about the value of incorporating omega-3 fatty acids into the nutrition of youth athletes.
This article discusses the importance of resistance training for older adults and considerations that personal trainers need to be aware of when working with this population.
Personal trainersExercise ScienceProgram designClient Consultation|Assessment
In addition to standard health, fitness, or sport assessment guidelines, several guidelines exist for the fire service. Since each agency is different in its preferences, capabilities, and philosophies, applying a standard recommendation may not be possible. This article introduces basic decision-making considerations for fire service assessment batteries.