Improvements in Quadriceps Force and Work Efficiency are Related to Improvements in Endurance Capacity Following Pulmonary Rehabilitation in COPD Patients
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概要
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Background and Objective The endurance time has been reported to be the most sensitive measure of improved exercise capacity in response to a variety of interventions for COPD. The aim of the present study was to determine whether the improvements in quadriceps force and measures obtained from a symptom-limited maximal test contributed to the improvements in endurance time following pulmonary rehabilitation. Methods Fifty-seven consecutive COPD subjects completed a 10-week pulmonary rehabilitation program. The subjects completed a symptom-limited incremental cycle ergometry test and a constant work rate test before and after pulmonary rehabilitation. Peripheral and respiratory muscle strength was also measured. The relationships between the change in endurance time and the changes obtained from the incremental test and muscle strength test were investigated. Results The endurance time showed the greatest improvement among the exercise capacity indices. The changes in endurance time were significantly correlated to changes in quadriceps force, peak work rate, anaerobic threshold and work efficiency on the incremental load test. In the multiple stepwise regression analysis, changes in quadriceps force and work efficiency measured on the maximal exercise test were selected. Conclusion These findings suggest that the improvements in endurance time after pulmonary rehabilitation may be explained by increased quadriceps force and improvements in peak work rate and work efficiency.
著者
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Kondoh Yasuhiro
Department Of Respiratory Medicine And Allergy Tosei General Hospital
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Nishiyama Osamu
Department Of Cardiology Iwate Medical University
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Ogawa Tomoya
Department Of Agricultural Chemistry Faculty Of Agriculture The University Of Tokyo
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Taniguchi Hiroyuki
Department Of Electronic Engineering Nihon University
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Watanabe Fumiko
Department of Cardiovascular Surgery and Internal Medicine Ohtemae General Hospital
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Nishimura Koichi
Department Of Anesthesiology Nihon University School Of Medicine
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Kataoka Kensuke
Department Of Applied Chemistry School Of Engineering Tokai University
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Kimura Tomoki
Department Of Radiation Oncology Hiroshima University Graduate School Of Biomedical Sciences
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Tabira Kazuyuki
Division of Health Science, Graduate School of Health Science, Kio University, Japan
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Kimura Tomoki
Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
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Arizono Shinichi
Department of Rehabilitation, Tosei General Hospital, Japan
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Senjyu Hideaki
Graduate School of Biomedical Sciences, Nagasaki University, Unit of Rehabilitation Science, Department of Cardiopulmonary Rehabilitation Science, Japan
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Kondoh Yasuhiro
Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
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Nishimura Koichi
Department of Respiratory Medicine, Nagoya Kyoritsu Hospital, Japan
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Watanabe Fumiko
Department of Rehabilitation, Tosei General Hospital, Japan
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Ogawa Tomoya
Department of Rehabilitation, Tosei General Hospital, Japan
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