Kobryn U, Hoffmann B, Ransch E
Eur J Appl Physiol Occup Physiol. 1986;55(1):79-82. doi: 10.1007/BF00422898.
Four groups of subjects of different ages and sex (group I: 20-29 years, women; group II: 20-29 years, men; group III: 30-39 years, women; group IV: 30-39 years, men) undertook dynamic one-hand work (load range 40%-80% of maximum voluntary contraction, at 60 working cycles/min) to allow a study of cardiovascular responses as shown by the resultant changes in blood pressure and heart rate. During fatiguing dynamic one-hand work, there was a large increase in systolic and diastolic blood pressures in both sexes after a few minutes. For all load levels, the systolic blood pressure was found to be higher by about 4 kPa in men (groups II and IV) than in women (groups I and III). Other age-related differences became evident in the diastolic blood pressure changes. The values obtained for the older groups were higher than those in the two younger groups. These differences in blood pressure response are possibly due to sex-related differences in the release of catecholamines, or to age-related organic changes in the vessels.
四组不同年龄和性别的受试者（第一组：20 - 29岁，女性；第二组：20 - 29岁，男性；第三组：30 - 39岁，女性；第四组：30 - 39岁，男性）进行单手动态工作（负荷范围为最大自主收缩的40% - 80%，每分钟60个工作循环），以便通过血压和心率的相应变化来研究心血管反应。在疲劳的单手动态工作期间，几分钟后男女的收缩压和舒张压均大幅升高。对于所有负荷水平，发现男性（第二组和第四组）的收缩压比女性（第一组和第三组）高约4千帕。在舒张压变化方面，其他与年龄相关的差异变得明显。老年组获得的值高于两个较年轻组。血压反应的这些差异可能是由于儿茶酚胺释放的性别差异，或血管中与年龄相关的器质性变化。
