慢性中風患者之心肺適能及其相關因子之探討

Investigation of Cardiorespiratory Fitness and Related Factors in Patients with Chronic Stroke

賴忠駿(Chung-Chun Lai) ； 黃文興(Wen-Shing Huang) ； 蔡昀萍(Yun-Ping Tsai) ； 吳英黛(Ying-Tai Wu)

《物理治療》 32卷4期 (2007/08) Pp. 175-182

摘要

Background and Purpose: The purpose of our study was to investigate the differences in cardiorespiratory fitness between patients with mild to moderate chronic stroke and gender-age-matched sedentary healthy subjects and the correlation with the possible related factors, including daily physical activity, lower extremity function, distance walked in six-minute walking test (6MWT), and the respiratory muscle endurance. Methods: Fifteen subjects (10 males and 5 females, mean age 60.1±11.3 years) with first stroke greater than 6 months and 15 gender-age-matched healthy subjects were recruited. They underwent 6MWT, the respiratory muscle endurance measurement, the symptom limited maximal exercise test and filled in a 7-day recall physical activity questionnaire. In addition, the lower extremity function was evaluated in stroke patients. Independent t test was used to make group comparison, Pearson and Spearman's correlation coefficients were used to test if the correlations with cardiorespiratory fitness existed in stroke patients. Result: Stroke patients had significantly lowered peak oxygen consumption (peak VO2), distance walked in 6MWT and walking speed than the control subjects (p＜0.01), about 61% in peak VO2 and 52% in 6MWT. Significantly higher values in ventilatory equivalents for oxygen and carbon dioxide were noted in stroke patients, no differences found in respiratory muscle endurance and breathing reserve between groups. Peak VO2 significantly correlated with the lower extremity function and the distance walked in 6MWT (r=0.6-0.8). Conclusion: The reduced cardiorespiratory fitness in mild-to-moderate stroke patients was related to their decreased lower extremity function and walking ability. Clinical Relevance: Exercise training to enhance cardiorespiratory fitness was needed in chronic stroke patients. Periodic evaluation of lower extremity function and 6MWT was suggested.

關鍵字

中風 ； 心肺適能 ； 身體活動 ； 行走測試 ； 呼吸肌耐力

並列摘要

Background and Purpose: The purpose of our study was to investigate the differences in cardiorespiratory fitness between patients with mild to moderate chronic stroke and gender-age-matched sedentary healthy subjects and the correlation with the possible related factors, including daily physical activity, lower extremity function, distance walked in six-minute walking test (6MWT), and the respiratory muscle endurance. Methods: Fifteen subjects (10 males and 5 females, mean age 60.1±11.3 years) with first stroke greater than 6 months and 15 gender-age-matched healthy subjects were recruited. They underwent 6MWT, the respiratory muscle endurance measurement, the symptom limited maximal exercise test and filled in a 7-day recall physical activity questionnaire. In addition, the lower extremity function was evaluated in stroke patients. Independent t test was used to make group comparison, Pearson and Spearman's correlation coefficients were used to test if the correlations with cardiorespiratory fitness existed in stroke patients. Result: Stroke patients had significantly lowered peak oxygen consumption (peak VO2), distance walked in 6MWT and walking speed than the control subjects (p＜0.01), about 61% in peak VO2 and 52% in 6MWT. Significantly higher values in ventilatory equivalents for oxygen and carbon dioxide were noted in stroke patients, no differences found in respiratory muscle endurance and breathing reserve between groups. Peak VO2 significantly correlated with the lower extremity function and the distance walked in 6MWT (r=0.6-0.8). Conclusion: The reduced cardiorespiratory fitness in mild-to-moderate stroke patients was related to their decreased lower extremity function and walking ability. Clinical Relevance: Exercise training to enhance cardiorespiratory fitness was needed in chronic stroke patients. Periodic evaluation of lower extremity function and 6MWT was suggested.

並列關鍵字

Stroke ； Cardiorespiratory fitness ； Physical activity ； Six-minute walking test ； Respiratory muscle endurance