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KMID : 0648320110170040166
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Journal of The Korean Society of Hypertension
2011 Volume.17 No. 4 p.166 ~ p.176
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Relationship between Clinical Factors Including Physical Activity and Job Category and Masked Effect Defined by Ambulatory Blood Pressure Monitoring
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Kim Yu-Mi
Lee Hyung-Min
Seo Joo-Youn
Kim Yeon-Soo
Kim Bae-Keun
Kim Mi-Kyung
Choi Bo-Youl
Shin Jin-Ho
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Abstract
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Background: Masked hypertension is well known for its poor cardiovascular outcome. But clinical clues related to the masked hypertension and/or masked effect (ME) are rarely known. Physical activity and/or job stress are related to increased daytime blood pressure (BP). This study is to identify whether ME is caused by physical activity and/or job category.
Methods: Physical activity using Actical and masked effect by clinic BP and ambulatory BP monitoring were applied to 167 person for this study.
Results: Age of the subjects was 54.9 ± 9.6 and 74 subjects were female (57.4%). Field worker was 81 (48.5%) and office worker was 86 (51.5%). Clinic BP was 125.8 ± 14.3 mmHg / 79.8 ± 10.9 mmHg in male and 119.0 ± 14.0 mmHg / 74.2 ± 8.9 mmHg in female (p = 0.03). Daily energy expenditure representing physical activity was 1,831.1 ± 420.4 kcal. ME for systolic BP was 11.0 ± 11.1 mmHg and ME for diastolic BP was 3.9 ± 8.0 mmHg. In multiple linear regression adjusted by smoking and antihypertensive medication showed that clinic systolic BP was the only significant factor related to the ME (β = -0.44755,
Conclusions: Neither physical activity nor job category is related to ME. This indicates that diagnosis of the masked hypertension is not affected by physical activity or job status.
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KEYWORD
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Motor activity, Workplace, Hypertension, Blood pressure monitoring, Ambulatory
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