An Introduction to Exercise and Sport Physiology Prepared By: Daniel Guzman Derek Maxwell.
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Transcript of An Introduction to Exercise and Sport Physiology Prepared By: Daniel Guzman Derek Maxwell.
An Introduction to Exercise An Introduction to Exercise and Sport Physiologyand Sport Physiology
Prepared By:Prepared By:
Daniel GuzmanDaniel Guzman
Derek MaxwellDerek Maxwell
Chapter OverviewChapter Overview
DefinitionDefinition HistoryHistory Responses to ExerciseResponses to Exercise ErgometersErgometers Specificity of Exercise TestingSpecificity of Exercise Testing Training PrinciplesTraining Principles Research MethodologyResearch Methodology
DefinitionDefinition
Physiology of exercise is made up of both Physiology of exercise is made up of both anatomy and physiologyanatomy and physiology
Anatomy - Study of the body’s structuresAnatomy - Study of the body’s structures
Physiology- Study of the body’s functionsPhysiology- Study of the body’s functions
DefinitionDefinition
Physiology of Exercise:Physiology of Exercise:
Is the study of how the human body adapts Is the study of how the human body adapts or alters its structures and functions to or alters its structures and functions to physical stress.physical stress.
HistoryHistory
Early explanations of physiology were either Early explanations of physiology were either vague or incorrectvague or incorrect
Microscope Microscope
HistoryHistoryThe Harvard Fatigue LaboratoryThe Harvard Fatigue Laboratory
Had the greatest impact on Physiology of Had the greatest impact on Physiology of Exercise.Exercise.
Laid the foundation for what is now modern Laid the foundation for what is now modern exercise and physiologyexercise and physiology– Nevada desert, Mississippi Delta, White MTN.Nevada desert, Mississippi Delta, White MTN.
Was the mecca of exercise physiologyWas the mecca of exercise physiology
Responses to ExerciseResponses to Exercise
Acute ResponseAcute Response How the body responds to a bout of exerciseHow the body responds to a bout of exercise
Factors that may alter an acute responseFactors that may alter an acute response Temperature, humidityTemperature, humidity Amount of noiseAmount of noise Food intakeFood intake
Acute Response TableAcute Response Table
Responses to ExerciseResponses to Exercise
Chronic AdaptationsChronic Adaptations Adaptations the body makes when challenged Adaptations the body makes when challenged
with repeated bouts of exercisewith repeated bouts of exercise Improves exercise capacity and efficiency.Improves exercise capacity and efficiency.
ErgometersErgometers
An ergometer is an exercise device that An ergometer is an exercise device that allows the amount and rate of a persons allows the amount and rate of a persons physical work to be controlled and physical work to be controlled and measured.measured.
ergo = workergo = work
meter = measuremeter = measure
Types of ErgometersTypes of ErgometersThe Cycle ErgometerThe Cycle Ergometer
AdvantagesAdvantages– Ease of taking blood pressure and blood samplingEase of taking blood pressure and blood sampling– Amount of work is independent of body weight Amount of work is independent of body weight
DisadvantagesDisadvantages– Legs become fatigued before the rest of the bodyLegs become fatigued before the rest of the body– Peak physiological variables are frequently lower than Peak physiological variables are frequently lower than
with other Ergometerswith other Ergometers
The TreadmillThe Treadmill
AdvantagesAdvantages– Doesn’t need to be closely monitored due to the belt Doesn’t need to be closely monitored due to the belt
speedspeed– Adaptability: everyone walksAdaptability: everyone walks
DisadvantagesDisadvantages– More expensiveMore expensive– PortabilityPortability– When the treadmill requires jogging, taking blood When the treadmill requires jogging, taking blood
pressure is difficultpressure is difficult
The Swimming FlumeThe Swimming Flume
AdvantagesAdvantages– Allows swimmers to accurately simulate their Allows swimmers to accurately simulate their
natural style while being closely observed. natural style while being closely observed.
Disadvantages Disadvantages – Very expensiveVery expensive
Specificity of Exercise TestingSpecificity of Exercise Testing
When using an ergometer for testing:When using an ergometer for testing:
Select an ergometer that most closely Select an ergometer that most closely approximates the activity of the given approximates the activity of the given individual being tested.individual being tested.
Training PrinciplesTraining Principles
SpecificitySpecificity DisuseDisuse Progressive OverloadProgressive Overload Hard/EasyHard/Easy PeriodizationPeriodization
SpecificitySpecificity
Optimal performance in a given activityOptimal performance in a given activity
Example:Example:
– A swimmer would train by swimming, not by A swimmer would train by swimming, not by running.running.
DisuseDisuse
Use it or lose itUse it or lose it
Example:Example:
– If a marathon runner stops running, he won’t be If a marathon runner stops running, he won’t be able to run marathons anymore.able to run marathons anymore.
Progressive OverloadProgressive Overload
Increasing your physical capabilities by Increasing your physical capabilities by loading beyond the point to which you are loading beyond the point to which you are normally used tonormally used to
Example:Example:– A short distance runner would run slightly longer A short distance runner would run slightly longer
distances every week until he can run a distances every week until he can run a marathon.marathon.
Hard/EasyHard/Easy
Incorporate both hard and easy workouts Incorporate both hard and easy workouts into your training routine.into your training routine.
Example:Example:– On a day following a high intensity workout, On a day following a high intensity workout,
prescribe an easy training day so that the body prescribe an easy training day so that the body can rest.can rest.
Research MethodologyResearch Methodology
Research DesignResearch Design Cross-sectional research designCross-sectional research design
A large population is tested at the same time. A large population is tested at the same time. Physiological differences between groups within Physiological differences between groups within
the population are used to estimate change.the population are used to estimate change.
Longitudinal DesignLongitudinal Design Individuals are tested more than once to measure Individuals are tested more than once to measure
changes over time.changes over time.
Research MethodologyResearch Methodology
Longitudinal studies are generally the most Longitudinal studies are generally the most accurate for studying a problem.accurate for studying a problem.
Cross-sectional studies are used usually Cross-sectional studies are used usually when longitudinal studies are not possible.when longitudinal studies are not possible.
ChapterChapter ConclusionConclusion
DefinitionDefinition HistoryHistory Responses to ExerciseResponses to Exercise ErgometersErgometers Specificity of Exercise TestingSpecificity of Exercise Testing Training PrinciplesTraining Principles Research MethodologyResearch Methodology