PSY333H1 Lecture Notes - Breast Self-Examination, Rectal Examination, Blood Test
Document Summary
Physical activity any sketal muscle contraction that results in an increased energy expenditure any physical activity even fidgeting will use energy and burn calorie s. Many diff types of exercise or physical activitybut physiologically there a re 5 forms of exercise. Energy for exercise comes from buring glucose and fatty acids can be in the prescence of oxygen or not before oxygen circulate in muscle or with oxygen in muscle. Aerobic sustained exercise, prolonged oxy use high intensity, long duration, high endurance. Stimulates and strengthens heart and lungs improves bodies oxy usage. Examples jogging, bicycling and swimming prolonged high intensits. Anearboci high intensity, short duration, low endurance creates deficit in 02 example is sprinting fast short distance. Ability to perform physical work is dependet upon the ability of muscle to transform chemical energy into mechanical energy. Muscles source of energy that keeps everything going is atp adenosine triphospahte.
