Test 1 Study Guide - Chapter 1 Physical Activity and Health...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1- Physical Activity and Health Males more active 18-29 age group more active Education and income increase activity West Coast more active Black/Hispanic least active Leading cause of death: 1900 1998 Flu Heart Disease TB Cancer Diarrhea Stroke CVD leading cause of death in US (1.1 millions heart attacks per year) Coronary heart disease-48% Stroke-17% Hypertensive disease-5% Chronic Activity will reduce/improve: CVD Obesity/overweight Diabetes Cancer Osteoporosis Mental heath Bad News: 40% people are sedentary Public confused about activity recommendations Limited access Decline in PE in schools 2003-23% moderate activity 1997-32% moderate activity Sedentary Lives Study: Total Energy Expenditure (TEE) 19%-sleeping 11% driving 9.2% office work 8.6% TV 86% no leisure activity
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
We are designed to walk 9-12 miles per day Everyday Find ways to stay active as possible in everyday tasks 3-5 times per week 20 min aerobic exercise 30 min recreational exercise 2-3 times per week Flexibility/Strength Training Cut down Sedentary activity (TV, video games) ACSM Guidelines for exercise (CV health) Large muscle group aerobic exercise Intensity: 55/65 – 90% HRmax or 40/50 – 85% VO2max Duration: 20-60 min continuous or added up Frequency: 3-5 days per week National Academy of Sciences Nutritional Rec’s (DRI, RDA) Focus heavily of body weight control 60 min moderate activity each day ACSM Optimum exercise for CV health (improve VO2max) and prevention of chronic disease CDC Min amount of activity to reduce disease burden in a population NAS Weight loss and prevention of weight gain
Image of page 2
Chapter 18: Cardiovascular Disease CVD: Number 1 cause of death in US Major cause of premature death and disability Movement of blood through heart: 1. Used blood enter heart 2. Right atria 3. Right ventricle 4. Lung 5. Left atria 6. Left ventricle 7. New blood into body Movement of blood through blood vessels: 1. Arteries 2. Arterioles 3. Capillaries 4. Venules 5. Veins Abnormalities of the heart: Holes between chambers (blue babies) Mitral valve prolapse or heart murmur = valves not working correctly Oxygen use by the heart: Myocardium needs O2 to contract O2 is supplied by coronary arteries O2 demand of heart depends on: Heart rate BP Myocardial O2 demand estimated by: SBP x HR Angina: Chest pain from occlusion of coronary arteries Occurs when O2 demand exceeds O2 supply Scale of 1-4 (4 severe) Cardiac Cycle: Systole (highest BP b/c of contraction) Ventricles contract and eject blood into body vessels
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Diastole (lowest BP b/c of ventricular relaxation) Ventricles being filled and no blood ejected from heart Blood Pressure: Lateral pressure of blood against vessels Pressure highest as it leaves the heart (arteries) Falls as it flows away from heart Becomes very low by the time it gets to the veins Arterial BP: Normal= 120/80mmHg High= 140/90mmHg Electrical Activity of the heart: 1.
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern