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頁籤選單縮合
題 名 | 肥胖者減重前後之攝氧效率斜率變化=Oxygen Uptake Efficiency Slope before and after Weight Reduction Program in Obese Adults |
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作 者 | 吳爵宏; 葉書銘; 張凱閔; 李鴻斌; 陳思遠; 藍青; 蔡鴻池; 黃雅鈴; 賴金鑫; | 書刊名 | 臺灣復健醫學雜誌 |
卷 期 | 39:4 2011.12[民100.12] |
頁 次 | 頁219-225 |
分類號 | 528.9012 |
關鍵詞 | 攝氧效率斜率; 肥胖; 心肺適能; Oxygen uptake efficiency slope; Obesity; Cardiorespiratory fitness; |
語 文 | 中文(Chinese) |
中文摘要 | 攝氧效率斜率(oxygen uptake efficiency slope)為近年來被廣泛應用之運動生理參數,攝氧效率斜率與最大攝氧量有高度相關,可在非最大強度運動下預測最大攝氧量,及評估心臟衰竭患者的預後。然而,目前仍無肥胖者減重前後攝氧效率斜率變化之研究。本研究目的是探討肥胖者減重前後在踏車最大運動測驗時攝氧效率斜率的變化。受測肥胖者有58位(男性13位,女性45位),平均年齡為43.5±15.0歲,體重為79.6±16.5公斤,身體質量指數為30.4±4.7公斤/平方公尺。受測者均接受為期12週之減重訓練,其中包含有氧運動訓練及飲食控制,在減重訓練前及訓練後皆以固定式腳踏車作一次最大運動測驗。測驗過程中持續監測心電圖及血氧飽和濃度、每兩分鐘自動做血壓測量、並逐次分析呼出氣體。減重後,體重減少大於5%者有34人,體重減少小於5%者有24人。結果發現攝氧效率斜率與體重呈正相關(r=0.60,p<0.0001),且體重減少大於5%受試者族群,其攝氧效率斜率亦隨之降低(p=0.01),表示攝氧效率降低。本研究結果顯示,肥胖者族群之攝氧效率斜率與體重呈正相關,且體重若有顯著下降者,其攝氧效率斜率也會明顯降低。因此,如根據攝氧效率斜率評估肥胖者之心肺適能,必須考慮體重變化帶來之影響。 |
英文摘要 | Background and Purpose: Oxygen uptake efficiency slope (OUES) is an index for evaluating cardiorespiratory fitness without performing maximal exercise and correlates well with the individual's peak oxygen uptake (□O(superscript 2peak)). The purpose of this study was to determine the clinical usefulness of OUES for determining the cardiorespiratory fitness of obese adults without cardiovascular diseases by investigating (1) the correlation between OUES and weight (2) the change in the OUES after a weight-reduction program. Methods: Fifty-eight obese subjects (13men and 45women) were enrolled in a 12-week weight-reduction program, including diet, exercise and psychological programs. They underwent maximal cycle ergometer exercise testing, with breath-by-breath gas analysis performed before and after the program. Pearson correlation coefficients were calculated to determine the correlation between OUES and other physiological variables, including weight, body mass index, (□O(superscript 2peak)), (□O(superscript 2peak))/weight and minute ventilation/carbon dioxide production slope. Paired t tests were used for comparing these variables before and after the weight-reduction program. Results: The OUES values were positively correlated with the weights (r=0.60, p<0.001) of the individuals. By the end of the weight-reduction program, the weights of 34 subjects had reduced by >5% and of another 24 subjects by <5%. Both groups showed a statistically significant increase in the (□O(superscript 2peak))/weight value at the end of the program. By the end of the program, the OUES had not changed for individuals whose weight had reduced by <5% (p=0.12) but showed a statistically significant decrease (p=0.011) from 2119 to 1970 for those whose weight had reduced by >5%. Conclusions: While using the OUES for assessing cardiorespiratory fitness, the influence of weight on the OUES value should also be considered. |
本系統中英文摘要資訊取自各篇刊載內容。