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Lecture 4

Lecture 4 (revised).docx

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School
McGill University
Department
Kinesiology&Physical Education
Course
EDKP 330
Professor
David J Pearsall
Semester
Fall

Description
9/26/2012 3:16:00 PM Kinesiology  Exercise and performance o Movement science o Sports psychology o Exercise physiology Epidemiology  Basic science of public health o Cases and consequences of diseases  the two together promote physical activity and public health  Public health aspect: how do we promote PA at a POPULATION level History  1990‟s- development of exercise sciences o life expantancy inc. by 30yrs  20 thcentury was the time for the most advances in exercise science, epidemiology, and life sciences in general  Dr snow- father of epidemiology o Stopped the cholera out break by figuring it out it‟s source (main water well) via deductive thinking „  Dr Morris- grandfather of PA and health o Looked at PA in correlation to heart attack in conductors and bus drivers  Dr Paffenberger o Harvard alumni study looking at PA and how it can prolong life o Created the field of PA and public health  Behavioral science: 1960‟s promoting PA in everyday life o Investigae how inactive people could adopt and maintain healthier beaviors  Built environment: o Looking at the role of the environment play in encouraging or discouraging PA activity behaviors  I.e. Bixies in montreal promote biking Note: penicillin was the first antibiotic used to control bacterial infections (1928) o Past vs Present  Then: pneumonia and influenza were main causes of death  INFECTIOUS  Now: heart disease is the number one killer  CHRONIC o Most important and powerful health benefit of PA are the prevention and treatment of chronic diseases  Public health surveillance- o ongoing systematic collection/analysis and interpretation of data to help us understand what type of people are at risk for different diseases essential to planning, implemtation, and evaluation of public health practice  “Population studies”  need enough people/parties represented in order for this to be nationally represented  Ex. diabetes: most prevalent in mexico, middle east and northern America  these are also the sites that have an abundant amount of obese people  There has been a significant amount of people suffering from diabetes in America since 1990 males are more likely to have diabetes o note that in the 80‟s/early 90‟s men and women were at about the same level of risk African American individuals are more likely to be diagnosed with diabetes  Intervention is done via efficacy trials o studies that are used to establish that a certain intervention or public health program can change a certain condition  ex. supplementing one‟s diet who suffers from iron deficiency anemia o Effectiveness trials  Main outcome of interest relates to how well a trament works in practice- in real life instead of a controlled setting  ex. encouraging people to use the stairs by using motivational signs  over 325 million people take the elevator, 245 take escalator daily o even a minor amount of PA can alter health drastically- a weight stable man who adds 2 flights of stairs to his daily activity will reduce his weight by 2.7 kg  methods: two signs placed where two flights of 15 stairs and escalators were adjacent (note: age, weight, sex, race were all taken into account) o one sign encouraged stairs for health benefits o one sign encouraged stair use for improving waistline  Results
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