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- Chuang Ming-Lung
- Section one, Chung Shan Medical University Hospital
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- Lee Chih-Hsin
- Department of Internal Medicine, Buddhist Tzu Chi General Hospital School of Medicine, Tzu-Chi University
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- Lin I-Feng
- Institute of Public Health, National Yang Ming University
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Background Maximal incremental exercise testing should be completed within 8-12 minutes. The ramp-slope influences the exercise duration. Oxygen-cost diagram (OCD) is a scoring scale for the capability of daily activity performed and therefore can be used to estimate the ramp-slope.<br> Methods The OCD-algorithm and the reported-algorithm were used prospectively in random order for selecting optimal ramp-slope: Ramp-slopeOCD=ScoreOCD×weight in kg/40 for men and weight/50 for women and Ramp-slopereported=(Predicted VO2peak-VO2unloaded)/100. Fifty-three dyspneic patients and 16 normal controls were enrolled to perform a ramp-pattern exercise. Fourteen patients not reaching maximum exercise levels were excluded. The exercise capacity, exercise time, and success rate of loaded exercise between 8 and 12 minutes were measured.<br> Results Comparing the reported-algorithm to the OCD-algorithm in normal controls, the only difference was that the ramp-slope was higher in males; in patients, the ramp-slope was higher in males, the exercise time shorter and the success rate lower (8.6±3.3 vs. 9.4±2.1 min, 61.5% vs. 84.6%, both p<0.05); in obese patients, the ramp-slope was lower and the exercise time longer.<br> Conclusion OCD score can predict the ramp-slope selection for exercise testing in normal controls and dyspneic patients. This may be affected by gender and body weight when using the reported-algorithm for dyspneic patients.<br>
収録刊行物
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- Internal Medicine
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Internal Medicine 49 (14), 1325-1332, 2010
一般社団法人 日本内科学会
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詳細情報 詳細情報について
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- CRID
- 1390001204872914432
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- NII論文ID
- 130000299535
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- ISSN
- 13497235
- 09182918
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 使用不可