| 主观用力感觉在预测心脏康复适宜运动度中的作用 |
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| 引用本文： | 刘洵,原晓晶.主观用力感觉在预测心脏康复适宜运动度中的作用[J].天津体育学院学报,2006,21(3):194-196. |
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| 作者姓名： | 刘洵 原晓晶 |
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| 作者单位： | 天津体育学院,运动人体科学系,天津,300381 |
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| 基金项目： | 天津市高等学校科技发展基金 |
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| 摘 要： | 目的:探讨主观用力感觉(RPE)在预测急性期后心梗患者(PMIP)对运动的生理和临床反应中的作用,这将有利于适宜运动强度的制定。方法:46名服用β阻断剂的男性PMIP(年龄60.9±7.5岁)5,5名未服用β阻断剂的男性PMIP(年龄63.6±7.3岁)在活动跑台上进行递增负荷实验,终止实验的标准依美国运动医学会的指南(ACSM)或病人的主观要求。运动中每30 s测量一次摄氧量(VO2)和通气量(VE)、每3 min记录一次心率(HR),血乳酸(BL)和主观用力感觉(RPE),并连续监测12导心电图。结果:两组病人在VO2,BL,VE和ST段降低与RPE的关系方面无显著差异(P>0.05)。然而,在运动实验过程中,两组病人在心率方面有显著差异(P<0.01)。无论是服用还是未服用β阻断剂的PMIP,RPE达到13都是其运动中有氧代谢向无氧代谢过渡的转折点。结论:基于以上结果,建议PMIP在运动心脏康复中感觉到"稍费力"时即不应再加大运动强度。
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| 关 键 词： | 急性期后心梗患者 心脏康复 主观用力感觉 运动强度 |
| 文章编号： | 1005-0000（2006）03-0194-03 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006-02-102006-04-01 |
The use of ratings of perceived exertion to indicate appropriate exercise intensities in cardiac rehabilitation |
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| LIU Xun,YUAN Xiao-jing.The use of ratings of perceived exertion to indicate appropriate exercise intensities in cardiac rehabilitation[J].Journal of Tianjin Institute of Physical Education,2006,21(3):194-196. |
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| Authors: | LIU Xun YUAN Xiao-jing |
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| Institution: | Department of Human Movement Science, Tianjin Institute of Physical Education, Tianjin 300381, China;Department of Human Movement Science, Tianjin Institute of Physical Education, Tianjin 300382, China |
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| Abstract: | Purpose: The objective of the study was to examine the extent that ratings of perceived exertion (RPE) can be used to predict physiological and clinical responses to exercise in post myocardial infarction patients (PMIP). This may enable appropriate exercise intensities to be recommended. Methods:Forty- six male recent PMIP with beta block therapy (aged 60.9±7.5 years) and 55 male recent PMIP without beta blockade therapy (aged 63.6±7.3 years)performed a graded exercise test on a motorized treadmill until volitional cessation or reaching any of the American College of Sports Medicine (ACSM)criteria. Oxygen uptake (V# O2) and volume of expired gas (V# O2) were measured every 30 seconds during the exercise. Heart rate (HR), blood lactate (BL) and ratings of perceived exertion (RPE) were recorded every three minutes, and a 12 lead electrocardiogram was monitored continuously. Results: The results
showed that there was a non- significant difference between the two groups in V# O2, BL,V# E and ST segment depression in relation to the RPE scale. (P>0.05). However a significant difference in HR was observed between the two groups throughout the exercise test (P<0.01). An RPE level of 13 can be regarded as the transfer point from aerobic to anaerobic metabolism for the patients both with and without beta blockade therapy. Conclusion: Based on above evidence, it is recommended that during cardiac rehabilitation PMIP should not increase exercise intensity further when it feels ' somewhat hard' .Purpose: The objective of the study was to examine the extent that ratings of perceived exertion (RPE) can be used to predict physiological and clinical responses to exercise in post myocardial infarction patients (PMIP). This may enable appropriate exercise intensities to be recommended. Methods:Forty- six male recent PMIP with beta block therapy (aged 60.9±7.5 years) and 55 male recent PMIP without beta blockade therapy (aged 63.6±7.3 years)performed a graded exercise test on a motorized treadmill until volitional cessation or reaching any of the American College of Sports Medicine (ACSM)criteria. Oxygen uptake (V# O2) and volume of expired gas (V# O2) were measured every 30 seconds during the exercise. Heart rate (HR), blood lactate (BL) and ratings of perceived exertion (RPE) were recorded every three minutes, and a 12 lead electrocardiogram was monitored continuously. Results: The results
showed that there was a non- significant difference between the two groups in V# O2, BL,V# E and ST segment depression in relation to the RPE scale. (P>0.05). However a significant difference in HR was observed between the two groups throughout the exercise test (P<0.01). An RPE level of 13 can be regarded as the transfer point from aerobic to anaerobic metabolism for the patients both with and without beta blockade therapy. Conclusion: Based on above evidence, it is recommended that during cardiac rehabilitation PMIP should not increase exercise intensity further when it feels ' somewhat hard' . |
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| Keywords: | PMIP Cardiac rehabilitation Ratings of perceived exertion Exercise intensity |
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