RECOVERY FROM EXERCISE-INDUCED DESATURATION IN THE QUADRICEPS MUSCLES OF ELITE COMPETITIVE ROWERS
RECOVERY FROM EXERCISE-INDUCED DESATURATION IN THE QUADRICEPS MUSCLES OF ELITE COMPETITIVE ROWERS
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DOI：
10.1152/ajpcell.1992.262.3.c766
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发表时间：
1992-03-01
影响因子：
--
通讯作者：
HAGERMAN, F
中科院分区：
文献类型：
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作者：
CHANCE, B;DAIT, MT;HAGERMAN, F
简单的肌肉组织分光光度计适用于测量运动肌肉毛细血管床中血红蛋白/肌红蛋白（Hb/Mb）去饱和的恢复时间（T(R)），称为脱氧仪。使用该仪器测量脱氧程度，但使用T(R)避免了量化Hb/Mb饱和度变化的困难。T(R)反映了精英男性和女性赛艇运动员（总共22人）在两次间隔1年的情况下，在最大自愿收缩（MVC）附近工作后，股四头肌局部肌肉的氧气输送和氧气需求的平衡。T(R)的范围从10到80秒，被解释为在ADP控制下，组织呼吸偿还剧烈运动中积累的氧气和能量缺陷的时间。Hb/Mb再饱和时间提供了一种无创的局部指示，表明划艇几何形状引起的氧输送应激程度，并可能为划艇比赛中特定个体的局部肌肉力量输出改善提供指导。
A simple muscle tissue spectrophotometer is adapted to measure the recovery time (T(R)) for hemoglobin/myoglobin (Hb/Mb) desaturation in the capillary bed of exercising muscle, termed a deoxygenation meter. The use of the instrument for measuring the extent of deoxygenation is presented, but the use of T(R) avoids difficulties of quantifying Hb/Mb saturation changes. The T(R) reflects the balance of oxygen delivery and oxygen demand in the localized muscles of the quadriceps following work near maximum voluntary contraction (MVC) in elite male and female rowers (a total of 22) on two occasions, 1 yr apart. T(R) ranged from 10 to 80 s and was interpreted as a measure of the time for repayment of oxygen and energy deficits accumulated during intense exercise by tissue respiration under ADP control. The Hb/Mb resaturation times provide a noninvasive localized indication of the degree of O2 delivery stress as evoked by rowing ergometry and may provide directions for localized muscle power output improvement for particular individuals in rowing competitions.