Response of the oxygen uptake efficiency slope to exercise training in patients with chronic kidney disease

被引:5
|
作者
Wilkinson, Thomas J. [1 ]
Watson, Emma L. [2 ]
Vadaszy, Noemi [1 ]
Baker, Luke A. [1 ]
Viana, Joao L. [3 ]
Smith, Alice C. [1 ]
机构
[1] Univ Leicester, Dept Hlth Sci, Leicester Kidney Lifestyle Team, Leicester, Leics, England
[2] Univ Leicester, Dept Cardiovasc Sci, Leicester, Leics, England
[3] Univ Inst Maia, Res Ctr Sports Sci Hlth Sci & Human Dev, CIDESD, ISMAI, Maia, Portugal
关键词
Chronic kidney disease; Exercise test; Exercise therapy; Oxygen consumption; Physical fitness; CARDIORESPIRATORY FITNESS; CHRONIC HEART; PHYSICAL-ACTIVITY; DYSFUNCTION; INDEX; CKD;
D O I
10.23876/j.krcp.20.032
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Background: Chronic kidney disease (CKD) patients have poor cardiorespiratory fitness. Although cardiopulmonary exercise testing (CPET) is a universal assessment of cardiorespiratory fitness, values taken at 'peak' effort are strongly influenced by motivation and the choice of test endpoint. The oxygen uptake efficiency slope (OUES) integrates cardiovascular, musculoskeletal, and respiratory function into a single index to provide a more pragmatic and safer alternative to maximal testing. No research has explored whether exercise can improve the CUES in CKD patients. Methods: Thirty-two patients with non-dialysis CKD were recruited into a 12-week exercise program consisting of mixed aerobic and resistance training three times a week. CPET was conducted at baseline, and then, following a 6-week control period, at pre- and post-exercise intervention. Direct measurements of oxygen consumption ((V)over dotO(2)) and ventilatory parameters were collected. The CUES was calculated as the relationship between (V)over dotO(2) and the log(10) of minute ventilation (V)over dotE). Results: No changes were observed in any variable during the control period, although modest increases in (V)over dotO(2pea)(k) were observed. No meaningful changes were observed as a result of exercise in any cardiorespiratory value obtained. The CUES calculated at 100%, 90%, 75%, and 50% of exercise duration did not change significantly after 12 weeks of exercise training. Conclusion: Our results show that 12 weeks of exercise training had no beneficial effects on the CUES, which supports the modest change observed in (V)over dotO(2pe)(ak). The lack of change in the CUES and other parameters could indicate a dysfunctional cardiorespiratory response to exercise in patients with CKD, likely mediated by dysfunctional peripheral metabolic mechanisms.
引用
收藏
页码:305 / 317
页数:13
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