Changes in the Mineral Status during Diet-and Exercise-Induced Weight Loss in Male College Athletes

To understand the changes in the mineral status u\during diet- and exercise- induced weight loss in male college athletes, the present study was undertaken. Eighteen non-obese young males were isolated and received 7 days of a very-low-calorie diet (VLCD) providing ~810 kcal/day. A low dose of multivitamin-multimineral supplement was given to each subject daily. This resulted in an inadequate macromineral and adequate miocromineral intakes. Groups, assigned basing on the match of body weight and age, were diet only (DN) and diet plus daily 30 min aerobic exercise (low/moderate, HRmax 60-80%) (DE). Changes in body wight were not different between the groups, on a dally basis. In either group, the body weight was decreased after the experiment (P＜.05). The plasma Ca and Mg concentrations were decreased with the experimental proceeding (P＜.05). Generally, the plasma P and Fe concentrations were slightly affected by the experimental design whereas the plasma Zn and Cu concentrations were not changed. The urinary macromineral excretions were below the normal ranges. The low/moderate intensity exercise did not affect the mineral status in the athletes. However, the VLCD along with the supplements could not provide adequate macrominerals to the athletes, especially in Ca intake. The results of this study suggest that during the reducing body weight phase, the ca intake level should be the primary concern as well as other nutrients along with the long-term aerobic exercise.

並列關鍵字

VLCD exercise minerals

國際替代計量

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