Effects of exercise position on the ventilatory responses to exercise in chronic heart failure

被引:7
作者
Armour, W
Clark, AL [1 ]
McCann, GP
Hillis, WS
机构
[1] Univ Glasgow, Western Infirm, Dept Cardiol, Glasgow G11 6NT, Lanark, Scotland
[2] Univ Glasgow, Dept Med & Therapeut, Glasgow, Lanark, Scotland
关键词
ventilation; chronic heart failure; posture; exercise;
D O I
10.1016/S0167-5273(98)00193-4
中图分类号
R5 [内科学];
学科分类号
1002 [临床医学]; 100201 [内科学];
摘要
Objective: Patients with heart failure frequently complain of orthopnoea. The objective was to assess the ventilatory response of patients with chronic heart failure during erect and supine exercise. Design: Maximal incremental exercise testing with metabolic gas exchange measurements in erect and supine positions conducted in random order. Setting: Tertiary referral centre for cardiology. Patients: Nine patients with heart failure (aged 61.9+/-6.1 years) and 10 age matched controls (63.8+/-4.6). Outcome measures: Metabolic gas exchange measurements. The slope of the relation between ventilation and carbon dioxide production. Ratings of perceived breathlessness during exercise. Results: Oxygen consumption ((V) over dot(O2)) and ventilation were higher during erect exercise at each stage in each group. Peak V-O2 was [mean (SD)] 17.12 ml/kg/min (4.07) erect vs 12.92 (3.61) supine in the patients (P<0.01) and 22.62 (5.03) erect-supine vs 19.16 (3.78) erect (P<0.01) in the controls. Ratings of perceived exertion were higher in the patients at each stage, but unaffected by posture. There was no difference in the slope of the relation between ventilation and carbon dioxide production between erect and supine exercise 36.39 (6.12) erect vs 38.42 (8.89) supine for patients; 30.05 (4.52) vs 28.80 (3.96) for controls. Conclusions: In this group of patients during exercise, there was no change in the perception of breathlessness, nor the ventilatory response to carbon dioxide production with change in posture, although peak ventilation was greater in the erect position. The sensation of breathlessness may be related to the appropriateness of the ventilatory response to exertion rather than to the absolute ventilation. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:59 / 63
页数:5
相关论文
共 17 条
[1]
REGIONAL PULMONARY FUNCTION STUDIED WITH XENON133 [J].
BALL, WC ;
NEWSHAM, LGS ;
STEWART, PB ;
BATES, DV .
JOURNAL OF CLINICAL INVESTIGATION, 1962, 41 (03) :519-&
[2]
A NEW METHOD FOR DETECTING ANAEROBIC THRESHOLD BY GAS-EXCHANGE [J].
BEAVER, WL ;
WASSERMAN, K ;
WHIPP, BJ .
JOURNAL OF APPLIED PHYSIOLOGY, 1986, 60 (06) :2020-2027
[3]
FACTORS AFFECTING REGIONAL DISTRIBUTION OF VENTILATION + PERFUSION IN LUNG [J].
BRYAN, AC ;
MACLEISH, H ;
BENTIVOGLIO, LG ;
BEEREL, F ;
BATES, DV ;
ZIDULKA, A .
JOURNAL OF APPLIED PHYSIOLOGY, 1964, 19 (03) :395-+
[4]
BULLER NP, 1990, BRIT HEART J, V63, P281
[5]
RELATION BETWEEN VENTILATION AND CARBON-DIOXIDE PRODUCTION IN PATIENTS WITH CHRONIC HEART-FAILURE [J].
CLARK, AL ;
POOLEWILSON, PA ;
COATS, AJS .
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY, 1992, 20 (06) :1326-1332
[6]
CLARK AL, 1996, J AM COLL CARDIOL, V28, P1
[7]
DAVIES SW, 1991, BRIT HEART J, V65, P179
[8]
KINETICS OF VENTILATION AND GAS-EXCHANGE DURING SUPINE AND UPRIGHT CYCLE EXERCISE [J].
HUGHSON, RL ;
XING, HC ;
BORKHOFF, C ;
BUTLER, GC .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 1991, 63 (3-4) :300-307
[9]
POSTURAL EFFECT ON CARDIAC-OUTPUT, OXYGEN-UPTAKE AND LACTATE DURING CYCLE EXERCISE OF VARYING INTENSITY [J].
LEYK, D ;
ESSFELD, D ;
HOFFMANN, U ;
WUNDERLICH, HG ;
BAUM, K ;
STEGEMANN, J .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY, 1994, 68 (01) :30-35
[10]
REGIONAL DISTRIBUTION OF LUNG PERFUSION AND VENTILATION IN PATIENTS WITH CHRONIC CONGESTIVE HEART-FAILURE AND ITS RELATIONSHIP TO CARDIOPULMONARY HEMODYNAMICS [J].
MOHSENIFAR, Z ;
AMIN, DK ;
SHAH, PK .
AMERICAN HEART JOURNAL, 1989, 117 (04) :887-891