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Exercise Phys 2010

Exercise Physiology

Claudius Galenus Gladiator doctor; anatomist, caused people to neglect the study for many years; "Laws of Health"
Augustus Flint Jr. Published 5 textbooks; combined into "The Principles and Practice of Medicine" (first exercise physiology book)
Edward Hitchcock Jr. Amherst Professor of Hygiene and PE; First to record annual statistical data on large group of subjects; proof-exercise is good
George W. Fitz Helped create Dept. Anat., Phys. and Physical Training at Harvard (first formal exercise physiology class/lab); class died when he quit
Harvard Fatigue Laboratory First major research lab to focus on the physiology of human movement and the effects of environmental stress on exercise; large influence because scientists went on to major positions
Exercise physiology Study of how the body's structures and functions are altered when exposed to acute and chronic bouts of exercise
Sport physiology Application of exercise physiology concepts to an athlete's training and performance
Metabolism Breakdown of nutrients to create energy; catabolic or anabolic
Catabolic Breaking things down
Anabolic Building things up
ATP Adenosine triphosphate; energy source for all cells; facilitates muscle contraction
Three metabolic pathways to synthesize ATP Immediate energy system (ATP-PCr); Anaerobic glycolytic system (lactic acid); oxidative system
Substrate Substance acted upon by an enzyme
Immediate energy system ATP, PCr; very quick rate of reaction; duration 0-30s; limiting factor PCr depletion
Anaerobic glycolytic system Glucose, glycogen; quick rate of reaction; duration 30s-3 min; limiting factors glycogen depletion, lactate accumulation (relative acidity); in cytoplasm and sarcoplasm
Created by: ktpognc