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Lecture 3

Lecture 3 (revised).docx

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

Description
Finishing Chp. 1 9/25/2012 5:17:00 PM Jack Rabbit- made skiing popular in Canada and the US Framinham heart study  Questionnaire and physical exams throughout generations o 1967- PA reduces risk of heart disease o 1971- off spring o 1995 omni study Landmark research  Tecumseh community health study (1957) o 2 cycles to asses physical activity of men  College alumni study- Paffenbarger o Looked at patterns of physical activity and health in Harvard alumni  Exercise: walking, stair climbing, sports  Mortality rates declined as energy expended increased up to 3500, after that point rates only decreased slightly  They decreased up to 55%  Rates were 25-33% lower in those who expended ~2000+ kcal/week  Mortality rates were significantly lower among the physically active, with or without adjustment for hypertension, cigarette smoking, body weight, or early parental death  he was able to determine the type of PA that was associated with improved health one of the first to do a follow up study findings can not be generalized to the population because these were a certain type of person  Ken Cooper: coined the term “arobics” o Cardiologist o 12min run test  Participaction (1970) o Public education/policy to educate Canadians about the important of PA o Had a commercial with a 60yr old swwede that had the heart capacity of a 30yr old Canadian Many different attemps have been made at publicizing PA  Health people 200 o PA & fitness o Nutrition o Tabacco o Alcohol and drugs o Family planning o Mental health o Violence o Education  Healthy people 2010 o PA o Overweight/obesity o Tobacco use o Substance abuse o Responsible sexual behavior o Mental health o Injury and violence o Environmental quality o Immunization o Access to health care PA has been hard to promote in schools, as physical education is deemed “only for boys” or “uncool”  shows a trend of kids (in general) dropping out of PE  women tend to drop out of PE more so then men shows that 25% of boys don’t get enough vigorous activity  30min 3x a week Chapter 2 9/25/2012 5:17:00 PM Physical activity: any bodily movement that results in energy expenditure  Walking up stairs  Putting away groceries Exercise: physical activity that is planned, repetitive, and done for a specific purpose  Running  Weight training Physical fitness: set of measurable physiological parameters Kinesiology: addresses the interrelationship of physiological processes and the anatomy of the body WRT movement  composed of- o Exercise physiology- how the body structures and functions are altered by exercise or PA and how the body adapts to the chronic stress of physical training o Movement sciences  Motor learning- learn to perform motor skills  Motor control- information processing/integration of motor movements  Biomechanics- physics of moving o Sports and exercise psychology (behavioral sciences) Physical inactivity and sedentary lifestyle can lead to  Psychological disorder o Depression o Mood o Anxiety  Cancers o Breast- exercise can reduce the risk o Colon o Prostate o Lung  Metabolic disorders o Obesity o Diabetes  Cardiovascular diseases o Hypertension o Congestive heart failure o Coronary heart diseases o Hypercholesterolemia o Cardiomyopathy  Pulmonary diseases o Emphysema o Chronic bronchitis o Asthma  Musculoskeletal disorders o Lower back pain o Osteoporosis o Bone fractures/connective tissue tears Threshold of gaining health benefits from PA comes at 150-300min of moderate – vigorous activity per week Dose-response: amount of physical activity or exercise needed for achieving health, fitness, or performance goals  Frequency, duration, intensity Volume – dose response: total caloric expenditure is directly related to the volume or dose of training that accumulates over time (accumulation: acquiring a specific dose of physical activity or exercise, or achieving a physical activity/exercise goal by performing several shorter bouts  Voluntary caloric expenditure can burn 15-30% of total daily expenditure  You burn 1.2 kcal per minute during rest  MET: unit of metabolic measure o 1 met = 3.5 ml/kg/min o Gross energy expenditure: combines physical activity or exercise energy requiremets with resting energy expenditure o Net energy expenditure: just the physical activity or exercise energy requirements Health outcomes decrease as you go down (less likely to obtain disease)  Note that as long as they are doing something, they are most likely going to get some benefits from the PA o However, too much can increase the chances of diseases and injury (see over training)  the amount of exercise needed to increase health benefits is significantly lower then the amount needed to improve athletically Functional health” reasonably healthy person with a lot of health but some disability and includes the maintenance of functional ability and role ability Principals of training, prescription, and planning FITT concept  F: frequency- how often an exercise/PA is performed o Sessions, episodes  I: intensity: physical eff
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