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 the variability in physical testing outcomes for law enforcement recruits based on the ambient temperatures and relative humidity present on test day.
TSAC FacilitatorsTesting and EvaluationLaw EnforcementFitness TestingRecruitsTemperatureRelative Humidity
Acceleration is the rate of change in velocity, so this phase of sprinting is critical for changing directions as rapidly and efficiently as possible. Optimal technique for linear sprinting in the acceleration phase involves four factors that maximize stride length and frequency.
CoachesExercise ScienceExercise Techniquespeedagilitystrength and conditioning
Periodization of training is based on the principle that different loads (e.g., light, moderate, or heavy) or power requirements recruit different types and numbers of motor units. Recruitment order is important from a practical standpoint for several reasons.
CoachesExercise Sciencekinetic selectstrength and conditioningstrength training
Periodization of training is based on the principle that different loads (e.g., light, moderate, or heavy) or power requirements recruit different types and numbers of motor units. Recruitment order is important from a practical standpoint for several reasons.
CoachesExercise Sciencestrength and conditioningstrength training
This article discusses the importance of upper body power training for protective security personnel and its potential for an occupational performance marker.
TSAC FacilitatorsProgram designTesting and EvaluationProtective Security PersonnelUpper Body PowerTactical AthleteCombat
This is the third and final article of a series on strength training practices for rowing and will focus on the energy systems development of rowing athletes.
CoachesProgram designRowingEnergy Systems DevelopmentHeart RateBreathing Strategies
The snatch is one of the most technically demanding competitive movements. This article focuses on barbell trajectory (or bar path), motor control, and the height of the bar relative to the athlete’s body.
CoachesExercise ScienceExercise TechniqueProgram designstrength and conditioningOlympic LiftsSnatch