The document discusses the short-term and long-term effects of exercise on the respiratory system. In the short-term, exercise increases breathing rate, depth of breathing, oxygen demand and carbon dioxide removal. This leads to oxygen debt as the body does not take in enough oxygen during intense exercise like sprinting. Over time with training, the respiratory muscles and lung capacity strengthen. This allows for more efficient gas exchange and an increased ability to exercise at a higher intensity for a longer period of time.
2nd and 3rd September 2011,a General Lecture Theatre, Dr Chirantan Mandal, Dr Avik Basu, Dr Dipayan Sen Dr Ushnish Adhikari,Dr Srimanti Bhattacharya, Dr Shubham Presided by Dr Arnab Sengupta (Physiology Dept Medical College Kolkata)
2nd and 3rd September 2011,a General Lecture Theatre, Dr Chirantan Mandal, Dr Avik Basu, Dr Dipayan Sen Dr Ushnish Adhikari,Dr Srimanti Bhattacharya, Dr Shubham Presided by Dr Arnab Sengupta (Physiology Dept Medical College Kolkata)
Physiological changes During Aerobic ExerciseAnand Vaghasiya
Exercise induces more activity in the whole body almost every system of the body affected by exercise.
Increasing muscular activity demands the more Oxygen and red blood cell supply to the muscular tissue.
So what is Physiological changes During Aerobic Exercise? explained in detail.
Changes in Cardio-Vascular System
Changes in Respiration
Changes in Blood System
Endocrine functions
The Fick principle
Oxygen delivery or oxygen consumption ( VO2 )
Arterial venous oxygen difference (a-v O2 difference )
Exercise physiology is concerned with the study of how the body adapts physiologically to the acute stress of exercise or physical activity, and the chronic stress of physical training.
Cardio and muscle endurance
Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. Aerobic literally means "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism. Generally, light-to-moderate intensity activities that are sufficiently supported by aerobic metabolism can be performed for extended periods of time
Physiological changes During Aerobic ExerciseAnand Vaghasiya
Exercise induces more activity in the whole body almost every system of the body affected by exercise.
Increasing muscular activity demands the more Oxygen and red blood cell supply to the muscular tissue.
So what is Physiological changes During Aerobic Exercise? explained in detail.
Changes in Cardio-Vascular System
Changes in Respiration
Changes in Blood System
Endocrine functions
The Fick principle
Oxygen delivery or oxygen consumption ( VO2 )
Arterial venous oxygen difference (a-v O2 difference )
Exercise physiology is concerned with the study of how the body adapts physiologically to the acute stress of exercise or physical activity, and the chronic stress of physical training.
Cardio and muscle endurance
Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. Aerobic literally means "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism. Generally, light-to-moderate intensity activities that are sufficiently supported by aerobic metabolism can be performed for extended periods of time
Respiration is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
The physiological definition of respiration should not be confused with the biochemical definition of respiration, which refers to cellular respiration: the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Although physiologic respiration is necessary to sustain cellular respiration and thus life in animals, the processes are distinct: cellular respiration takes place in individual cells of the organism, while physiologic respiration concerns the bulk flow and transport of metabolites between the organism and the external environment.
8. Oxygen debt After anaerobic activity, oxygen is needed to neutralize the lactic acid. This is called an oxygen debt . It is repaid after exercise. The oxygen reacts with the lactic acid to form CO 2 and water. Rapid and deep breathing is needed for a short period after high intensity exercise in order to repay the debt. This also helps to remove the carbon dioxide which accumulates in the blood during intense exercise.
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12. Gas exchange at the alveoli The alveoli are bunches of tiny air sacks inside the lungs. Each individual sack is called an alveolus . When you breathe in, they fill with air. The alveoli are covered in tiny capillaries (blood vessels). Gases can pass through the thin walls of each alveolus and capillary, and into the blood stream. Gases can also pass from the blood stream, into the alveolus.
14. Measuring breathing Tidal volume is the amount you breathe in and out in one normal breath. Residual volume is the amount of air left in your lungs after you have breathed out as hard as you can. Minute volume is the volume of air you breathe in one minute. Respiratory rate is how many breaths you take per minute. Vital capacity is the maximum volume of air you can breathe out after breathing in as much as you can. Multiply together Tidal volume and respiratory rate This will give you minute volume!
Clarify and expand on the definitions with the students
Relate these facts to improvements in performance. Emphasise that lungs are NOT muscles and therefore do not increase in size – they function more efficiently.