Cardiovascular response to exercise avik baxsu

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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)

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Cardiovascular response to exercise avik baxsu

  1. 1. EXERCISE AND SPORTS PHYSIOLOGY<br />CARDIOVASCULARRESPONSE TO EXERCISE<br />Presented by:<br />AVIK BASU<br />
  2. 2. The following aspects of cardiovascular system are influenced by exercise:<br />1. Blood Flow Distribution<br />2. Heart Rate<br />3. Cardiac Output<br />4. Blood Pressure<br />
  3. 3. REGULATION <br />OF <br />BLOOD FLOW<br />
  4. 4. Metabolic<br />What is <br />auto-regulation?<br />Myogenic<br />It is a manifestation of local blood flow regulation in a particular organ system at tissue level<br />
  5. 5. Metabolic Theory of Auto-regulation<br />Pre-capillary Sphincters Closed<br />Pre-capillary Sphincters Opened<br />
  6. 6. During Exercise…<br />
  7. 7. Blood Flow Redistribution during Exercise<br />
  8. 8. GOALS OF BLOOD FLOW REDISTRIBUTION<br />Satisfy the altered nutritional requirement<br />Keep the core body temperature at a constant<br />Maintain perfusion of the essential organs<br />
  9. 9. REGULATION <br />OF <br />HEART RATE<br />
  10. 10. DURING EXERCISE...<br />
  11. 11. AT REST<br />DURING EXERCISE<br />
  12. 12. REGULATION OF <br />CARDIAC OUTPUT<br />
  13. 13. FACTORS RESPONSIBLE FOR INCREASED CARDIAC OUTPUT IN EXERCISE<br />Increased venous return to the heart<br />Positive inotropy<br />Positive chronotropy<br />
  14. 14. GRAPHICAL REPRESENTATION OF THE RELATIONSHIP BETWEEN CARDIAC OUTPUT, VENOUS RETURN AND INOTROPY AND THEIR CHANGES DURING EXERCISE<br />
  15. 15. REGULATION OFBLOOD PRESSURE<br />
  16. 16. EFFECT ON SYSTOLIC BLOOD PRESSURE<br />Catecholamine release during exercise<br />Positive chronotropy and inotropy<br />Rise in Systolic Blood Pressure<br />
  17. 17. EFFECT ON DIASTOLIC BLOOD PRESSURE<br />In Aerobic Exercise…<br />DBP is decreased<br />In Anaerobic Exercise…<br />DBP is increased<br />
  18. 18. THANK YOU!<br />

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