Reasons for Doing PA I do it for my HEALTH. READINESS FOR EXERCISE If you are not exercising regularly, are you willing to stop contemplating and give exercise a try? Ĭommon reasons people give for not being active “ I don’t have the time” “ it’s too inconvenient” “ I don’t enjoy it” “ I’m no good at it” “ I’m not fit so avoid activity” “ I have no place to be active especially in bad weather” “ I am too old” Lower blood pressure & blood lipids - reduces major risk factor for stroke & coronary heart disease - lower levels of fats ( such as cholesterol and triglycerides) Lower blood pressure & blood lipids - reduces major risk factor for stroke & coronary heart disease - lower levels of fats īenefits of Aerobic Training 9. Increase in number of functional capillaries - more gas exchange can take place 8. Increase in the number and size of the mitochondria 7. Lower heart rate at a given workloads īenefits of Aerobic Training 6. Decrease in Resting Heart Rate by 10 – 20 beats per minute (bpm) after 6-8 weeks of training A reduction of 20 bpm saves the heart about 10,483,200 beats per year. Increase in cardiac muscle strength heart responds to training by increasing in strength and size stronger heart, more forceful contraction which aids to eject more blood w/ each beat ( Stroke volume ) īenefits of Aerobic Training 4. Increase in oxygen-carrying capacity of the blood Red blood cell (hemoglobin) count 3. As much as 30% increase in people with very low initial levels of fitness īenefits of Aerobic Training 2. īenefits of Aerobic Training Higher maximal oxygen uptake (VO2max ) increase in the amount of oxygen the body is able to use during physical activity allows one to exercise longer & more intensely before becoming fatigued. intensity is so high that oxygen cannot be delivered and utilized to produce energy - can be carried out for only short periods – 2-3 minutes. Īnaerobic exercise – activities that do not require oxygen to generate the energy for muscular activity. Īerobic and Anaerobic Exercise Aerobic Exercise – energy required to perform cardiorespiratory activities is generated through aerobic (oxygen-using) metabolism e.g. Hence, the higher capacity to deliver and utilize oxygen indicates a more efficient cardiorespiratory system. Unfit individual Has to work the cardiorespiratory system much harder the heart has to work at a higher rate, less oxygen is delivered to the tissues, and consequently, the individual fatigues faster. The most important component of physical fitness and best indicator of overall health A measure of how efficiently our bodies work įit Individual During prolonged exercise, an individual with a high level of cardiorespiratory endurance is able to deliver the required amount of oxygen to the tissues easily. CARDIORESPIRATORY ENDURANCE The ability of the lungs, heart, and blood vessels to deliver adequate amounts of oxygen to the cells to meet the demands of prolonged physical activity.
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