[Muscle blood flow in lower limbs of healthy Chinese and variance according to sex and age].
The Xe-133 clearance method is used to measure muscle blood flow in the lower limbs to establish normal values and evaluate the variance between different sex and age groups in healthy Chinese. 99 healthy volunteers were included in this study and divided into three groups according to age and two groups according to sex. Group I: < 40 y/o, 34 persons; Group II: 41-60 y/o, 30 persons; Group III: > 60 y/o, 35 persons; male group: 51 persons; and female group: 48 persons. Intramuscular injection of Xe-133 saline solution in the anterior tibial muscle of the right leg was performed in all the volunteers to calculate muscle blood flow. The muscle blood flow is 3.21 +/- 1.29 ml/100 gm/min in Group I, 3.19 +/- 1.28 in Group II, 2.71 +/- 1.17 in Group III, 3.09 +/- 1.38 in male, and 2.96 +/- 1.24 in female. There was no significant difference in Groups I and II, or in the male and female groups using the Student's t test for unpaired data. However, a mild difference was observed between Groups I and III, and between Groups II and III (P values of 0.09 and 0.11 respectively). We conclude that there is no variance of muscle blood flow in the lower limbs between different sexes and the effect of aging on peripheral muscle blood flow is not significant before 60 in healthy Chinese.
Lin
W Y
WY
Department of Nuclear Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China.
Tsou
C T
CT
Kao
C H
CH
Hsu
C Y
CY
Liao
S Q
SQ
Wang
S J
SJ
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000098:blood supply*; D012039:Regional Blood Flow; D012727:Sex Characteristics; D014980:Xenon Radioisotopes
D014980:Xenon Radioisotopes