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Changes in distance achieved in the shuttle walk test. Lines in bold with large solid circles indicate mean values in each group. Mean (SD) distance walked at baseline was similar in testosterone and placebo treated groups (328 (174) m v 314 (92) m, p = 0.825). In the testosterone treated group, exercise duration increased significantly to 419 (200) m, p = 0.001, but there was no significant change with placebo, to 340 (101) m, p = 0.122.
