effects of exercise

Question 1

how does moderate exercise enhance the immune response

Answer 1

• exercise increases the number and activity of natural killer cells
• decreases the risk of upper respiratory infections

Question 2

how does vigorous exercise negatively effect the immune response

Answer 2

• decrease activity of natural killer cells, phagocytes, B lymphocytes and T helper cells
• risk of upper respiratory tract infection
• exposure to pathogens from other countries

Question 3

effects of vigorous exercise in joints

Answer 3

• cartilage is warn away causing arthritis
• cruciate ligament damage
• inflammation of tendons causing tendonitis

Question 4

benefits of physical activity

Answer 4

• increasing arterial vasodilation lowers blood pressure which reduces risk of CHD and stroke
• increases HDL’s levels and reduces LDL’s
• maintain a healthy weight
• increased sensitivity of muscles to insulin
• increases bone density
• reduces risk of some cancers
• improves mental well-being