Increased respiratory muscle strength

When you are resting you breathe in oxygen from the atmosphere from your nose and mouth where it is warmed filtered and humidified as it flows through the larynx into the trachea. From the trachea the oxygen flows into two bronchi that divide from the trachea and are part of your right and left lung. These bronchi divide further into bronchioles where the air continues to travel into the alveoli which are the respiratory tracts ending sacs where gas exchange occurs. From the lungs oxygen is sent out to the body for metabolism and carbon dioxide waste returns to the lung to be expelled in exhalation (Katch et al. 2015) When you are new to running the respiratory system must work harder to adjust to the new demand. At rest your respiratory rate is about 12 breaths per minute. When you start running it can go as high as 45. The amount of air moved with each breath you take is called your tidal volume. With increased exercise your tidal volume rises. The amount of air you breathe each minute is called your minute ventilation and it will also increase. At first you will find yourself breathing hard and fast but in time your body will adapt and your tidal volume will increase with only a minimal increase in respirations (Katch et al. 2015). Just as there is a gas exchange in your alveoli there is also gas exchange in your tissues. Because you are running your muscles need more energy so they will use up more oxygen. The oxygen will flow into your muscle cells and carbon dioxide will flow out to be returned to the heart to be delivered to your lungs to be expelled. Your body will keep up and not run out because most people tend to over-breathe to make up for it (Katch et al. 2015). Like I said before your body in time is going to adapt beautifully to running. Two adaptation examples are increased respiratory muscle endurance and increased respiratory muscle strength. Your minute ventilation can increase 20-fold from what it is at rest and your lungs will be able to handle the heavier demands of your training (McKenzie 2012). As the lung muscles are able to work harder and longer with exercise you will find yourself running faster and longer. I wish you much success Meghan. ReferencesKatch V. McArdle W. & Katch F. (2015). Essentials of exercise physiology. (5th ed.). Retrieved from https://www.vitalsource McKenzie D. C. (2012). Respiratory physiology: adaptations to high-level exercise. British Journal of Sports Medicine 6 381..com/ Stefanović R. (2016). Model of a Recreational Running Program for Beginners. Activities in Physical Education & Sport 6(1) 132.ReplyReply to Comment COLLAPSE SUBDISCUSSIONDominique IvoryDominique Ivory11:49amJan 28 at 11:49amManage Discussion EntryEvening from Italy Megan it is really great that you are taking your health more seriously. The saying that it is better to start late than to not start at all applies to your awesome decision. Jogging 3 days a week is a great start and will give you a foundation for you to develop as a runner.Cardiovascular System: The cardiovascular system is comprised of the heart arteries capillaries and veins.There is an interconnected continuum of the vascular system that pumps the blood and distributes blood and oxygen to the rest of the body and vital organs. The heart muscle consists of two separate pumps. The right pump receives deoxygenated blood returning from the body and pumps blood to the lungs. The left pump receives oxygenated blood from the lungs and pumps blood into the aorta for distribution throughout the body.Heart rate- This is the number of times the heart beats in the space of a minute. This is normally an important indicator of the health of the human body. The heart rate should be between 60-100 beats per minute while resting.Stroke volume is the end diastolic and end systolic volumes. It is the volume ejected with each heartbeat. It is the volume of blood ejected during ventricular contraction or for each stroke of the heart.Cardiac output is the heart rate and stroke volume being measure in liters per minute.Blood pressure- The left ventricular contraction causes an amount of blood to enter the aorta which distending the vessel and creating pressure.VO2 MaxThe increasing in the muscle thickness also increases the contractility which increases the stroke volume at rest and during exercise. This increases blood supply to the body. Katch V. McArdle W. & Katch F. (2015). Essentials of exercise physiology. (5th ed.). Retrieved from https://www.vitalsource.com/ Cardiovascular System: The cardiovascular system is comprised of the heart arteries capillaries and veins. Heart rate- This is the number of times the heart beats in the space of a minute. This is normally an important indicator of the health of the human body. The heart rate should be between 60-100 beats per minute while resting. Stroke volume is the end diastolic and end systolic volumes. It is the volume ejected with each heartbeat. It is the volume of blood ejected during ventricular contraction or for each stroke of the heart. Cardiac output is the heart rate and stroke volume being measure in liters per minute. Blood pressure- The left ventricular contraction causes an amount of blood to enter the aorta which distending the vessel and creating pressure. VO2 Max Compare normal physiological functions of the cardiovascular respiratory and neuromuscular systems at rest and during exercise.Explain acute and chronic physiological responses that occur with exercise. Katch V. McArdle W. & Katch F. (2015). Essentials of exercise physiology. (5th ed.). Retrieved from https://www.vitalsource.com/Chapter 9 The Pulmonary System and Physical ActivityChapter 10 The Cardiovascular System and Physical ActivityChapter 11 The Neuromuscular System and Physical Activity Chapter 9 The Pulmonary System and Physical ActivityChapter 10 The Cardiovascular System and Physical ActivityChapter 11 The Neuromuscular System and Physical Activity Films Media Group. (2010). The body in motion: The respiratory system (Links to an external site.). Retrieved from the Films On Demand database in the Ashford University Library. Films Media Group. (2010). The body in motion: The muscular system (Links to an external site.). Retrieved from the Films On Demand database in the Ashford University Library. Films Media Group. (2010). The body in motion: The circulatory system (Links to an external site.). Retrieved from the Films On Demand database in the Ashford University Library. How the body responds to exercise (Links to an external site.). (2009). Retrieved from Physiological responses to exercise (Links to an external site.). (2013). Retrieved from ThreeTreasuresStudio. (2010). Simple exercise physiology (Links to an external site.). Retrieved from Films Media Group.(2012). Lifelong Physical Activity (Links to an external site.). Retrieved from the Films On Demand database in the Ashford University Library.

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