Peikert D, Smolander J
Bundesanstalt für Arbeitsmedizin, Berlin, Federal Republic of Germany.
Eur J Appl Physiol Occup Physiol. 1991;62(6):445-9. doi: 10.1007/BF00626618.
The purpose of this study was to determine if the cold pressor test during isometric knee extension [15% of maximal voluntary contraction (MVC)] could have an additive effect on cardiovascular responses. Systolic and diastolic blood pressures, heart rate and pressure rate product were measured in eight healthy male subjects. The subjects performed the cold pressor tests and isometric leg extensions singly and in combination. The increases of systolic and diastolic blood pressure during isometric exercise were of almost the same magnitude as those during the cold pressor test. The responses of arterial blood pressure, and heart rate to a combination of the cold pressor test and isometric knee extension were greater than for each test separately. It is suggested that this additional effect of cold immersion of one hand during isometric exercise may have been due to vasoconstriction effects in the contralateral unstressed limb. In summary, the circulatory effects of the local application of cold during static exercise at 15% MVC were additive.
本研究的目的是确定在等长伸膝（最大自主收缩的15%）过程中进行冷加压试验是否会对心血管反应产生叠加效应。在8名健康男性受试者中测量了收缩压、舒张压、心率和压力心率乘积。受试者分别进行了冷加压试验和等长腿部伸展，以及两者相结合的试验。等长运动期间收缩压和舒张压的升高幅度与冷加压试验期间几乎相同。冷加压试验和等长伸膝相结合时，动脉血压和心率的反应大于单独进行每项试验时的反应。提示等长运动期间单手冷浸的这种额外效应可能是由于对侧无负荷肢体的血管收缩效应。总之，在15%最大自主收缩的静态运动期间局部应用冷的循环效应是叠加的。
