Potential effect of 6 versus 12-weeks of physical training on cardiac autonomic function and exercise capacity in chronic obstructive pulmonary disease.

التفاصيل البيبلوغرافية
العنوان:	Potential effect of 6 versus 12-weeks of physical training on cardiac autonomic function and exercise capacity in chronic obstructive pulmonary disease.
المؤلفون:	Borghi-Silva A; Cardiopulmonary Physical Therapy Laboratory, Physical Therapy Department, Federal University of São Carlos São Carlos, São Paulo, Brazil - audrey@ufscar.br., Mendes RG, Trimer R, Oliveira CR, Fregonezi GA, Resqueti VR, Arena R, Sampaio-Jorge LM, Costa D
المصدر:	European journal of physical and rehabilitation medicine [Eur J Phys Rehabil Med] 2015 Apr; Vol. 51 (2), pp. 211-21. Date of Electronic Publication: 2014 Mar 05.
نوع المنشور:	Journal Article; Randomized Controlled Trial
اللغة:	English
بيانات الدورية:	Publisher: Edizioni Minerva Medica Country of Publication: Italy NLM ID: 101465662 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1973-9095 (Electronic) Linking ISSN: 19739087 NLM ISO Abbreviation: Eur J Phys Rehabil Med Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: Torino : Edizioni Minerva Medica
مواضيع طبية MeSH:	Autonomic Nervous System/physiopathology , Exercise Therapy/methods , Exercise Tolerance/physiology , Heart Rate/physiology , Pulmonary Disease, Chronic Obstructive/rehabilitation , Vital Capacity/physiology, Aged ; Analysis of Variance ; Exercise Test/methods ; Female ; Humans ; Male ; Outcome and Process Assessment, Health Care/statistics & numerical data ; Prospective Studies ; Pulmonary Disease, Chronic Obstructive/physiopathology ; Spirometry ; Time Factors
مستخلص:	Background: Exercise is an important part of chronic obstructive pulmonary disease (COPD) treatment. However, it is not know about the minimum effective time of physical training that could beneficially modify the cardiac autonomic modulation (CAM) and exercise capacity in these patients. Aim: To contrast the potential effects of a physical training program (PTP), for 6 versus 12 weeks, on CAM by linear and nonlinear heart rate variability (HRV) indices and exercise capacity in COPD patients. Design: Prospective randomized controlled trial. Setting: Outpatient pulmonary rehabilitation. Population: Twenty moderate-to-severe COPD patients were randomly assigned to either a training group (N.=10) or a control group (N.=10). Methods: HRV at rest and during submaximal test was determined by linear (rMSSD and SDNN) and non-linear indices (SD1, SD2 and sample entropy [SE]). In addition, key responses were obtained during cardiopulmonary exercise testing (CPET), the walking distance (WD) during the six minute walking test and submaximal constant speed testing (CST). PTP consisted of 30 minutes of aerobic exercise training on a treadmill, 3 times per week at 70% of CPET peak speed rate. Patients were evaluated on baseline, 6 and 12 weeks. Results: Significant improvements in HRV indices, WD, as well as, other physiological responses were observed after 6 weeks of the PTP and maintained until 12 weeks (P<0.05). However, after 12 weeks, the SD1 index demonstrated an additional improvement compared with 6 weeks (P<0.05). Peak oxygen uptake and dioxide carbon production improved only after 12 weeks (P<0.05). Interestingly, the 6th week-baseline delta (6th week-baseline) of WD, SDNN and SE were significantly higher than 12th week-6th week delta (P<0.05). Conclusion: These results indicate that beneficial changes on cardiac autonomic modulation in conjunction with improvement in submaximal functional capacity occur in the first 6 weeks of PTP in moderate to severe COPD. Clinical Rehabilitation Impact: Short-term rehabilitation (6 weeks) is an effective sufficient time to beneficially modify important outcomes as cardiac modulation and exercise capacity in COPD patients.
تواريخ الأحداث:	Date Created: 20140306 Date Completed: 20160201 Latest Revision: 20220321
رمز التحديث:	20240628
PMID:	24594853
قاعدة البيانات:	MEDLINE

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