| Summary: | 碩士 === 臺北巿立體育學院 === 運動科學研究所 === 101 === Abstract
Purpose: The purpose of this study was to investigate the effect of the mineral water supplement on skeletal muscle oxygenation and exercise performance; the changes of blood lactate concentration during exercise were observed as well. Methods: Ten male college basketball players were recruited and divided into two trials: placebo and mineral water determined by VO2 max. The study was used the double-blend and cross over design. All subjects were received ether placebo or mineral water (1.8 ml/kg) before 15 minutes experiment begins. In this study, all subjects were underwent 80% VO2 max intensity and performed on the ergometer bike to exhausted. Each 15 minutes collected blood sample for determining the level of blood lactate and supplied the placebo and mineral water (1.8 ml/kg) during exercise, respectively. The changes of oxygenation in skeletal muscle were recorded by NIRS during exercise to exhaust. Subjects were received the same diet during the experiment. Results: The levels of muscle oxy-hemoglobin, dexoy-hemoglobin, and total hemoglobin were not significant difference between in placebo and mineral water trials. The muscle oxygen saturation in mineral water trial was significantly lower than in placebo trial at 15 and 18 minutes during exercise. Blood lactate level was no significant changed between in these two trials during performance, however, the blood lactate concentration was found significantly higher in mineral water trial than in placebo trial after exercise immediately. Conclusions: In this study, we found that mineral water supplementation could improve the aerobic exercise performance; this improvement might be associated with increase the capacity of anaerobic metabolism.
Key Words: lactate, Near Infrared Spectroscopy, NIRS, VO2Max
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