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Lesson 2.docx - Lesson 2A: Kinesiology Concepts - Physical...

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Lesson 2A: Kinesiology Concepts-Physical activity: any bodily movement that results in energy expenditure-Exercise: specific type of physical activity that is planned, repetitive, and done for aspecific purpose-Physical fitness: set of measurable physiological parametersKinesiology-Study of the physiological processes and anatomy of the body during movement-Exercise physiology (physiological processes)-Study of how the body structures and functions are altered by acutebouts of exercise or physical activity, and how the body adapts to thechronic stress of physical training-Movement sciences (motor learning, motor control, biomechanics)-Motor learning: study of how we learn and perform motor skills such ascycling and dancing-Motor control: study of human information processing and theintegration of motor movements that involve motor planning andexecution-Biomechanics: the study of physics applied to the understanding ofmovement in living organisms-Sport and exercise psychology (behaviors and outcomes related to sport orexercise)-Study of behaviors and outcomes related to participation in sports orprograms of exercise training-A functionally healthy person has been defined as a reasonably (not perfectly) healthyperson with a lot of health, but some disability and includes the maintenance offunctional ability and role abilityMovement-Sliding filament theory-Muscle contraction-Series of chemical reactions-Needs ATP-Aerobic-Requires oxygen for ATP-Anaerobic-Does not require oxygen for ATPMuscle Fiber Types-Fast Twitch-Recruited primarily with higher work intensities and quickly fatigue-Stain light-Anaerobic-Suited to strength and speed-Slow Twitch-Recruited more at low to moderate work intensities and are fatigue resistant-Stain dark
-Aerobic-Suited to endurance activityEnergy Production-Energy- Food (fats, protein, carbs)-ATP: adenosine triphosphateEnergy Production Options-Anaerobic-Immediate source-Creatine Phosphate System-Fast energy production, short lasting (~10 sec)-Short-term source-Glycolysis: glucose stored in cell and within muscle-Results in ATP and pyruvate-Fast energy production, intermediate (~20-120 seconds)-Aerobic-Long-term source-Oxidative phosphorylation-Uses fat as energy source-Slower energy production, long lasting (3+ minutes)Graded Exercise Test (GXT)-Treadmill, Cycle Ergometer-Multiple, advancing stages-VO2maxor submax-Measures-Heart rate-Blood pressure-Ratings of perceived exertion-Gas exchange-Blood lactate-Determine-If there was a normal response-Maximal aerobic capacityCaloric Expenditure-Related to the volume of training over time-

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Term
Fall
Professor
AmyFletcher
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