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Kee Hong Park1
, Byoung Joon Kim2, Sa-Yoon Kang3, Sun-Young Oh4, Eun Hee Sohn5, Kyeong-jin Song5, Jin-Hong Shin6, Kyoung Hwa Kang6, Eun Bin Cho7, Heejeong Jeong7, Hyung Lee, Hyun Ah Kim, Rock Bum Kim, Ki-Jong Park
, Byoung Joon Kim2, Sa-Yoon Kang3, Sun-Young Oh4, Eun Hee Sohn5, Kyeong-jin Song5, Jin-Hong Shin6, Kyoung Hwa Kang6, Eun Bin Cho7, Heejeong Jeong7, Hyung Lee, Hyun Ah Kim, Rock Bum Kim, Ki-Jong Park
초록
Background
The standardized autonomic function test has become widely available. How-ever, there are no reference data for this test for the Korean population. This study explored reference data for sudomotor and cardiovagal function tests for the Korean population.
Methods
The sweat volume by quantitative sudomotor axon reflex test, heart-rate response to deep breathing (HRdb), expiration:inspiration (E:I) ratio, and Valsalva ratio (VR) were measured in 297 healthy Korean volunteers aged from 20 to 69 years. Multivariate regression analysis was performed to evaluate the effects of age, sex, and body mass index on these variables. The 2.5th, 5th, 10th, 90th, 95th, and 97.5th percentile values were obtained for each investigation.
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Fig. 1.
Heart-rate response to deep breathing (HRdb) as a function of age for males (A) and females (B). The HRdb was negatively correlated with age and was lower in females than in males. Lines show 2.5th, 5th, 50th, 95th, and 97.5th percentiles. bpm, beats per minute.
Fig. 2.
Expiration:inspiration (E:I) ratio as a function of age for males (A) and females (B). The E:I ratio was negatively correlated with age and was lower in females than in males. Lines show 2.5th, 5th, 50th, 95th, and 97.5th percentiles.
Fig. 3.
Valsalva ratio (VR) as a function of age. The VR was negatively correlated with age. Lines show 2.5th, 5th, 50th, 95th, and 97.5th percentiles.
Table 1.
Demographic characteristics of the participants
Table 2.
Sweat volume in the four tested regions according to sex
Table 3.
Heart-rate response to deep breathing according to age group and sex
Table 4.
Expiration:inspiration ratio according to age group and sex
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