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Changes in body weight (A) and distance walked in 6 min (B) at 4 and 6 mo by age. (A) Age tended to be positively (P = 0.06) associated with amount of weight lost. There was a time × age interaction, such that middle-aged women had lost more weight at 4 than at 6 mo, whereas older women had lost more weight at 6 than at 4 mo [F(1, 48) = 4.71, P < 0.03]. (B) There was no association of age with 6-min walk results. *P < 0.10.
