Harshfield G A, Dupaul L M, Alpert B S, Christman J V, Willey E S, Murphy J K, Somes G W
Department of Pediatrics, University of Tennessee, Memphis 38103.
Hypertension. 1990 Jun;15(6 Pt 2):810-4. doi: 10.1161/01.hyp.15.6.810.
We examined the effects of aerobic fitness and race on the diurnal rhythm of blood pressure of 175 healthy adolescents who performed a cycle ergometer maximal exercise test while oxygen consumption was measured. A median split of maximum oxygen consumption for boys and girls separately classified them as either "more-fit" or "less-fit" subjects. Ambulatory blood pressure recordings were also performed, and the data were analyzed for means while subjects were awake and asleep. Less-fit black boys had higher systolic pressures than more-fit black boys while awake (124 vs. 115 mm Hg; p less than 0.009) and asleep (117 vs. 108; p less than 0.001). Less-fit black boys also had higher systolic pressures than less-fit white boys while awake (114; p less than 0.002) and asleep (105; p less than 0.001), and they had higher systolic pressures than more-fit white boys while asleep (105; p less than 0.01). Less-fit black girls had higher systolic pressures than more-fit black girls while awake (116 vs. 109; p less than 0.004) and asleep (109 vs. 100; p less than 0.001). Less-fit black girls also had higher diastolic pressures than more-fit black girls while awake (71 vs. 66; p less than 0.002) and asleep (66 vs. 61; p less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
我们研究了有氧适能和种族对175名健康青少年血压昼夜节律的影响，这些青少年进行了蹬车测力计最大运动测试，同时测量了耗氧量。分别根据男孩和女孩最大耗氧量的中位数将他们分为“更健康”或“不太健康”的受试者。还进行了动态血压记录，并对受试者清醒和睡眠时的数据进行了均值分析。不太健康的黑人男孩在清醒时（124对115毫米汞柱；p<0.009）和睡眠时（117对108；p<0.001）的收缩压高于更健康的黑人男孩。不太健康的黑人男孩在清醒时（114；p<0.002）和睡眠时（105；p<0.001）的收缩压也高于不太健康的白人男孩，并且他们在睡眠时（105；p<0.01）的收缩压高于更健康的白人男孩。不太健康的黑人女孩在清醒时（116对109；p<0.004）和睡眠时（109对100；p<0.001）的收缩压高于更健康的黑人女孩。不太健康的黑人女孩在清醒时（71对66；p<0.002）和睡眠时（66对61；p<0.001）的舒张压也高于更健康的黑人女孩。（摘要截断于250字）
