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Athletics and Oxygen Supply

    Abstract

    I N attempting to analyse the factors which underlie muscular efficiency, most observers have been content to concern themselves with a consideration of the oxygen supply. They have devoted themselves to a study of the means by which fuel arrives at the engine rather than to a study of the behaviour of the engine itself. As a result of the work of Fletcher, Hopkins, and of Hill, we are now in a position to consider the broad question of athletic capacity from the details of the changes which we know take place in the contraction of a single isolated muscle.

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