Yes, one hypothesis in this paper is "Differences between men and women in muscle enzymes is the explanation for differences in carbohydrate loading." However, a second hypothesis is "The lower dietary energy intake in women compared to men is the explanation for differences in carbohydrate loading." Thus, this paper has two main hypotheses; they are alternative explanations for the gender differences in carbohydrate loading.

The last four paragraphs of the introduction describe the hypotheses that will be tested in the study, giving justification for each hypthesis by citing the relevant literature. The last paragraph of the introduction summarizes the hypotheses that are tested. Notice that each is stated as a "purpose" or "objective". In many papers, the last paragraph of the introduction is that place where the hypothesis or hypotheses are stated.

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