13 Results for physical activity

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GREATER ATHLETIC TRAINING YEILDS LOWER PULSE RATE AFTER STRENUOUS ACTIVITY Introduction: This experiment was performed to investigate the hypothesis: greater athletic training yields a lower pulse rate after strenuous activity. After performing Experiments 15.1 and 15.2 (Dickey 1995), our te...
Angina · Pain starts in the chest & can spread to neck, jaw & arms. Mainly occurs on the left hand side of the body. · The pain may either be a dull ache or a crushing feeling, causing breathlessness. · The pain occurs because not enough oxygen is getting to the heart, es...
Stress was originally isolated and defined by Dr. Hans Selye, the "grandfather" of stress research. Dr. Selye defined stress as the nonspecific response of the body to any demand. The effect is nonspecific because it effects up in three primary ways: Physically, Emotionally, And Interpe...
Impact of Heart Diseas Stages of the condition There are many types of heart disease. About 25% of all Americans have one or more types of cardiovascular disease. The major types of heart disease are atherosclerosis, coronary, rheumatic, congenital, myocarditis, angina and arrhythmia. Heart...
ARRHYTHMIAS An arrhythmia is a disruption in the normal events of the cardiac cycle. It may take a variety of forms. SINUS TACHYCARDIA A. General information A heart rate of over 100 beats/minutes, originating in the SA node. May be caused by fever, apprehension, physical acti...
Congestive heart failure is a condition that happens when the heart is not able to pump enough blood to meet the needs of the body's tissues. When the heart fails, it is unable to pump out all the blood that enters its chambers. In other words, all the blood that is pumped to the body is ret...
1. Homeostasis is defined as the body's internal environment being within a certain physiological state. There are seven major factors that need to be homeostaticly maintained. They are: concentration of oxygen and carbon dioxide, nutrition of cells, concentration of wastes, concentration of s...
Pseudohypertropic muscular dystrophy, or Duchenne muscular dystrophy is an inherited disease whose symptoms include quickly progressive muscle weakness. This muscle weakness begins in the legs and pelvis and slowly affects the whole body. Duchenne muscular dystrophy only affects boys (girls are on...
Cholesterol is a waxy, fatty substance that circulates through the bloodstream as part of the cell membrane. Unable to dissolve in blood, it is transported by lipoproteins to and from the liver through the circulatory system. Found throughout all human bodies, it is an integral part of life, ...
Heart Attacks A heart attack is also known as Myocardial Infarction (M.I.). A heart attack occurs when the blood supply to a portion of the heart muscle is severely reduced or stopped. This happens when one of the arteries that supply blood to the heart muscle is blocked by an obstruction. This b...
Cardiovascular diseases rank as America's number 1 killer. They claim the lives of 42.7 percent of the more than 2 million Americans who die each year. Cancer follows, killing 23.8 percent. All other causes of death account for 33.5 percent. Medical research continually seeks to reduce di...
"How ya holdin' up, kid?" The old man in a pit-stained wife beater with his right cheek pressed close against his prized fighter whispers more words of encouragement as his hands knead into the fighter's shoulders and as they both stare across the ring at the powerhouse pugilist that has alread...