the ATP resynthesis from EMP occurs much quicker than that from Krebs cycle. Recall, the number of steps in EMP is, much smaller than that in the Kreb

. Metabolic. 4.Thermal and cutaneous. 5. Second wind. 6. Water end electrolyte. 7. Eruiocrinal. 8. Steady state. IV. Fatigue V. Effects of training. Isometric versus isotonic exercise. VI. Therapeutic values of exercises. Introduction The history of sports is probably as old as the history of man himself. In the ancient classic 'Shrimat Bhagvatam', there are references of professional wrestlers Lord Krishna while still in His very early teens, (or, may be even when he was only eleven) beat some of the greatest contemporary professional wrestlers" in the court of the tyrant king Kamsa. Both the ancient Greeks and Romans were great sport loving people and their sports included a formidable variety. The ancient Buddhist priests, to whom non violence was a creed, practised kangfu to protect themselves from the armed bandits. Yet, the physiology of exercise, in particular, sports physiology is not a very old subject. It is however, growing very rapidly now, and a probable reason of its rapid growth may be the patronage it receives from the state and the society. The state and the society hope that development of sports physiology in the country can bring reputation for the country not only in the field of sports but also in other fields too. The modern sports have become indeed very demanding because of the fierce competitions. Besides, regular physical exercise is known to have beneficial effects on many diseases. Although the current chapter deals with the physiology of exercise, it does not aim to be a treatise on sports physiology, for which excellent books are available II.