Archives for scott christensen

Fatigue, Part 4 – The Aerobic Energy System

The scientific information presented in the first three sections on the onset of fatigue during exercise (Part 1 Fatigue–Energetics, Part 2 Fatigue–Anaerobic Alactic Energy System, and Part 3 Fatigue–Anaerobic Glycolytic Energy System) pointed out the importance of beginning each discussion on energy system metabolism with basic review of adenosine triphosphate (ATP) and its role in…

Fatigue, Part 3 – The Anaerobic Glycolytic Energy System

Information presented in the first two sections on fatigue during exercise (Part 1 Fatigue-Energetics and Part 2 Fatigue-Anaerobic Alactic Energy System) pointed out the importance of beginning every discussion on energy system metabolism with basic knowledge of adenosine triphosphate (ATP) and its role in muscle contraction.  Humans have advanced through natural selection using three metabolic…

Cross-Training Nonsense

General athletic skill is governed by physical maturity and individual developments in the five biomotor skills of speed, strength, endurance, flexibility, and coordination.  Development of specific athletic skill is governed by a training blend of the five biomotor skills, but with a strong emphasis on the singular skill type that is characteristic of the narrow…

Fatigue, Part 2 – The Anaerobic Alactic Energy System

Information presented in the first section on fatigue during exercise (Part 1 Fatigue-Energetics) pointed out the importance of beginning every discussion on energy system metabolism with knowledge of adenosine triphosphate (ATP) and its role in muscle contraction.  Humans have evolved using three metabolic energy systems for their daily activities which may range from lifting a…

Gerard Mach Speed Drills

Most successful track coaches prescribe repetitive physical drills for their team members on a regular basis to facilitate the learning of an under-developed skill.  Warm-up activities are probably the most commonly done drills throughout the team, but other events, especially those in the field, have a selection of drills that are necessary for successful learning. …

Running Cadence

It is well known by scientists through academic studies, and with coaches working in the field, that the two measurable factors that determine speed of performance in an endurance runner are stride length and stride frequency. A common term for stride frequency is cadence, and this word refers to the rate of leg gait cycling…

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