運動様式および運動後の水分補給が血液流動性に与える影響

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In recent years, physical exercise has been proposed for improvement of health. However, dehydration by physical exercise is known to be harmful to health and may injure blood fluidity which affects the cardiovascular system. Therefore, we studied the effects of two different exercises (aerobic or anaerobic) and water (intake or no intake) on blood fluidity by MC-FAN (Micro Channel array Flow Analyzer) which mimics the capillary system. The subjects were 24 healthy male volunteers divided into four groups: anaerobic and no water intake (6 subjects), aerobic and no water intake (6 subjects), aerobic and 100 mL water intake (6 subjects), aerobic and 500 mL water intake (6 subjects) . Blood flow time immediately after exercise was longer than that before exercise in all four groups. Blood flow time of 30 minutes after exercise (BF30) returned to pre-exercise levels in the aerobic and no water intake group. However. BF30 did not return to the pre-exercise level in the aerobic and no water intake group. BF30 returned to the pre-exercise level in the aerobic and 500 mL water intake group but did not return to the pre-exercise level in the aerobic and 100 mL water intake group. Statistically significant data were obtained only in the case of heparin used as an anticoagulant. Heparin blocks blood coagulation but does not block platelet agglutination. However, constant data were not obtained when EDTA, which blocks both blood coagulation and platelet agglutination was used as an anticoagulant. The blood fluidity deteriorated after both anaerobic and aerobic exercises. When using EDTA, the most important factor affecting blood fluidity is the deformation of red blood cells because platelet agglutination is blocked. On the other hand, in the case of heparin, the most important factor affecting blood fluidity is platele agglutination since platelet agglutination is not blocked by heparin. These data suggest that aerobic and anaerobic exercises may affect blood fluidity mainly through the platelet agglutination mechanism, and water intake to a certain extent is indispensable for restoration of blood fluidity after aerobic exercise through the platelets agglutination mechanism.
学校法人昭和大学・昭和医学会の論文

運動様式および運動後の水分補給が血液流動性に与える影響

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