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PubMed2006

Interval training compared with continuous training in patients with COPD.

The aim of this study was to compare the effects of interval training (3-min intervals) with continuous training on peak exercise capacity (W peak), physiological response, functional capacity, dyspnoea, mental health and health-related quality of life (HRQoL) in patients with moderate or severe COPD. Sixty patients exercised twice weekly for 16 weeks after randomisation to interval- or continuous training. Target intensity was 80% of baseline W peak in the interval group (I-group) and 65% in the continuous group (C-group). Patients were tested by spirometry, ergometer cycle test, cardiopulmonary test and a 12 min walk test. Dyspnoea was measured by the dyspnoea scale from Chronic Obstructive Disease Questionnaire (CRDQ), mental health by Hospital Anxiety and Depression scale (HAD) and HRQoL by the Medical Outcomes Survey Short Form 36 (SF-36). After training, W peak, peak oxygen uptake (VO(2) peak) and exhaled carbon dioxide (VCO(2) peak) increased significantly in both groups, no significant differences between the groups. Minute ventilation (V(E) peak) increased only in the C-group. At identical work rates (isotime) VO(2), VCO(2) and V(E) were significantly more decreased in the I-group than in the C-group (p<0.05). Functional capacity, dyspnoea, mental health, and HRQoL improved significantly in both groups, no difference between the groups. Interval training and continuous training were equally potent in improving peak exercise capacity, functional exercise capacity, dyspnoea, mental health and HRQoL in patients with moderate or severe COPD. At isotime, the physiological response to training differed between the groups, in favour of the interval training.

Adult↗
PubMed2006

Quality of life in patients with chronic kidney disease: focus on end-stage renal disease treated with hemodialysis.

The proper measures for assessing quality of life (QOL) in patients with chronic kidney disease (CKD) remain unclear. QOL measures are subjective or objective, functional or satisfaction-based, and generic or disease-specific. Treatment of end-stage renal disease with transplantation and treatment of anemia with erythropoietin in patients with CKD have been associated with dramatic improvements of QOL. Other factors such as age, ethnic or national background, stage of CKD, modality of dialytic therapy, exercise interventions, sleep disturbances, pain, erectile dysfunction, patient satisfaction with care, depressive affect, symptom burden, and perception of intrusiveness of illness may be associated with differential perception of QOL. Recent studies showed an association between assessment of QOL and morbidity and mortality in end-stage renal disease patients, suggesting the measures do matter. Further studies are necessary in patients with early stages of CKD and in children. QOL measures should include validated psychosocial measures of depressive affect, perception of burden of illness, and social support. The challenge for the next decade will be to continue to devise interventions that meaningfully increase the QOL of patients with CKD at all stages.

Humans↗
PubMedDate not supplied

A treatment and outcomes analysis of patients with coccydynia.

BACKGROUND CONTEXT: Coccydynia is a painful condition of the terminal portion of the spine often resulting from direct trauma, childbirth or unknown etiology. This is a relatively rare condition with no universally accepted treatment protocol. PURPOSE: To more clearly determine the optimal treatment for patients with coccydynia and to assess the outcomes after conservative and surgical therapy. STUDY DESIGN: Retrospective review of outcomes of all patients presenting with symptoms of coccydynia during a 5-year period. PATIENT SAMPLE: Thirty-two patients presented to an orthopedic spine surgeon during a 5-year period with symptoms of coccydynia. OUTCOME MEASURES: Patients completed visual analog pain scales (VAS) and the Oswestry (OSW) functional capacity index. METHODS: Of the 32 patients in the study, 4 (13%) were treated with nonsteroidal anti-inflammatory drugs (NSAIDs) alone, 17 (53%) were treated with NSAIDs followed by local injections and 11 (34%) underwent coccygectomy after failure of NSAIDs and local injections. Patients completed VAS and OSW forms. Pain drawings were also completed. RESULTS: Patients undergoing surgery had significantly greater pretreatment VAS scores (8.3 vs 5.4, p=.002). Surgical patients also had greater OSW scores, but not significantly (36.6 vs 24.2, p=.223). Marked improvement was reported by 9 of 11 (82%) surgical patients. Three of 11 (27%) surgical patients developed wound infections and 1 (9%) wound dehiscence. All infections resolved following irrigation and debridement and a short course of oral antibiotics. CONCLUSIONS: Patients with coccydynia should be managed conservatively when possible. Treatment should include NSAIDs and local steroid injections. Patients will often require repeat injections over time. Surgery can offer reasonable results for patients failing conservative treatment, but they should be warned of the high rate of infection.

Adult↗
PubMed2000

A controlled trial of cardiac rehabilitation in the home setting using electrocardiographic and voice transtelephonic monitoring.

OBJECTIVE: The goal of this study was to compare the effectiveness of home-based, transtelephonically monitored cardiac rehabilitation with standard, on-site, supervised cardiac rehabilitation. BACKGROUND: Participation in cardiac rehabilitation has been demonstrated to increase exercise capacity, decrease cardiovascular symptoms, improve psychosocial status, and decrease total and cardiovascular mortality rates in patients with coronary heart disease. Because of multiple factors, national overall participation is only at 15% of eligible patients. METHODS: Effects of a 3-month home-based, transtelephonically monitored rehabilitation program (n = 83 patients) with simultaneous voice and electrocardiographic transmission to a centrally located nurse coordinator were compared with effects of a standard on-site rehabilitation program (n = 50 patients). The study design was a multicenter, controlled trial. Primary outcome variables were peak aerobic capacity and quality of life, as measured by the Health Status Questionnaire. RESULTS: Patients in the home-based monitoring program increased peak aerobic capacity to a similar degree as patients who exercised on site (18% vs 23%). Quality of life domains of physical functioning, social functioning, physical role limitations, emotional role limitations, bodily pain, and energy/fatigue improved similarly in both groups. There were no circulatory arrests or other major exercise-related medical events in either group. A total of 3100 hours of home exercise were transtelephonically monitored. CONCLUSIONS: Patients with coronary heart disease can effectively participate in home-based, monitored cardiac rehabilitation, with exercise and quality of life improvements comparable to those demonstrated at on-site programs.

Age Factors↗
PubMed1996

Effects of cardiac rehabilitation and exercise training programs on depression in patients after major coronary events.

To evaluate the effect of cardiac rehabilitation and exercise training on depression after major cardiac events, we studied 338 consecutive patients in whom a major cardiac event had occurred 4 to 6 weeks previously and who were participating in phase II cardiac rehabilitation consisting of 36 sessions over a 3-month period. Depressive symptoms and other behavioral characteristics and quality-of-life parameters were analyzed by validated questionnaire. Depression was prevalent in patients with coronary heart disease, occurring in 20% of the patients evaluated. At baseline, depressed patients had lower exercise capacity, reduced high-density lipoprotein cholesterol level, and higher triglyceride levels; had lower scores for mental health, energy or fatigue, general health, pain, overall function, well-being, and total quality of life; and had greater scores for somatization, anxiety, and hostility than those of nondepressed patients. After cardiac rehabilitation, depressed patients had marked improvements in depression scores and other behavioral parameters (anxiety, somatization, and hostility) and quality of life. Depressed patients also showed improved exercise capacity, percentage of body fat, and levels of triglycerides and high-density lipoprotein cholesterol. Depressed patients exhibited statistically greater improvements in certain behavioral and quality-of-life parameters than did nondepressed patients. Two thirds of the patients who were initially depressed resolved their symptoms by study completion. In conclusion, depression is reduced in patients with symptomatic coronary heart disease patients enrolled in cardiac rehabilitation. Greater emphasis is needed to ensure that depressed patients are referred to and attend formal cardiac rehabilitation programs after major cardiac events.

Angioplasty, Balloon, Coronary↗
PubMed1996

Effects of exercise training on left ventricular filling at rest and during exercise in patients with ischemic cardiomyopathy and severe left ventricular systolic dysfunction.

The aim of our study was to determine whether exercise training can augment left ventricular diastolic filling at rest and during exercise in patients with ischemic cardiomyopathy and whether any correlation exists between changes in diastolic filling and changes in exercise tolerance. Forty-three consecutive patients (mean age, 54 +/- 8 years) with ischemic cardiomyopathy and severe left ventricular systolic dysfunction (election fraction <30%) were studied. Group T (29 patients) was exercised on a cycle ergometer 3 times a week for 8 weeks at 60% of peak oxygen uptake. Group C (14 patients) was not exercised. All patients underwent an exercise test and a radionuclide ventriculography at baseline and after 8 weeks. At the end, no changes were found in group C. In group T, exercise training increased peak oxygen uptake (1 5%; p < 0.0001), work rate (1 5%; p < 0.005), peak early filling rate (10%; p < 0.02), and peak filling rate (1 1%; p < 0.03). At submaximal exercise, peak filling rate increased at all matched heart rates. The increase in peak filling rate was correlated with the increase in cardiac index (r= 0.72; p < 0.0001) at peak exercise. The independent predictors of the increase in peak oxygen uptake were changes in work capacity and peak early filling rate. The data demonstrate that exercise training can improve the exercise capacity of patients with ischemic cardiomyopathy and severe systolic-dysfunction. The increase in early diastolic filling at rest and during exercise may contribute to the improvement in peak oxygen uptake.

Cardiac Output↗
PubMed1997

Effects of exercise training and activity restriction on 6-minute walking test performance in patients with chronic heart failure.

Eighteen hospitalized patients with severe chronic heart failure (ejection fraction [mean +/- SEM] 21% +/- 1%) underwent 3 weeks of exercise training (interval bicycle ergometer and treadmill walking training exercises) and 3 weeks of activity restriction in a random-order crossover trial. Before and after exercise training and after activity restriction, a 6-minute walking test was performed to determine the maximum distance walked, hemodynamic and cardiopulmonary responses, norepinephrine levels, and ratings of leg fatigue and dyspnea while walking. A ramp test on bicycle ergometer (increments of 12.5 W/min) was performed before and after exercise training and activity restriction to determine peak oxygen uptake. After training, the maximum distance walked was increased by 65% (from 232 +/- 21 m at baseline to 382 +/- 20 m; p < 0.001), whereas after activity restriction (253 +/- 19 m) there was no significant difference compared with baseline. No significant differences in hemodynamic and cardiopulmonary parameters (with the exception of the ventilatory equivalent for carbon dioxide and perceived exertion) or norepinephrine levels were observed during walking tests. Improvement in maximum distance walked correlated significantly with training-induced increase in peak oxygen uptake measured during bicycle ergometry (r = 0.47, p < 0.05). The lower the maximum distance walked at baseline, the more pronounced the training-induced prolongation of maximum distance (r= -0.73; p < 0.001). These data support the value of exercise training in patients with severe chronic heart failure for improving maximum distance walked, as documented by the 6-minute walking test. The impairment of walking test performance during activity restriction suggests a need for long-term exercise training programs.

Activities of Daily Living↗
PubMed2001

Exercise performance and training in patients with implantable cardioverter-defibrillators and coronary heart disease.

The aim of this preliminary study was to compare exercise performance and the effect of exercise training in cardiac patients with and without an implantable cardioverter-defibrillator (ICD). There are few data on exercise performance and on the effect of exercise training in patients with an ICD. Data in patients with an ICD (n = 8) were compared with those from a matched control group (n = 16). Patients performed maximal cycle-ergometer testing before and after 3 months of exercise training. All patients had to stop the exercise test for reasons of exhaustion. The predetermined heart rate threshold in ICD patients, set at the detection rate of the ICD minus 30 beats/min, was not reached. Before training, peak oxygen uptake was not different in the ICD patients compared with the control group (21.0 +/- 6.9 vs 21.9 +/- 5.0 ml oxygen standard temperature pressure dry/min/kg). Exercise training increased peak oxygen uptake to a similar extent in both groups, 20% and 24%, respectively. One ICD patient developed uneventful ventricular tachycardia at the end of the post-training exercise test, and another during training. Thus, exercise performance and the favorable response to a 3-month exercise training program are comparable in patients with ICD and matched control patients. However, tachyarrhythmias may occur during exercise testing or training and require special attention. Selected patients with ICD can be encouraged to participate in medically supervised exercise training programs. The results of this study should be confirmed with additional studies on larger numbers of subjects.

Coronary Disease↗
PubMed2003

Effect of age and gender on heart rate recovery after submaximal exercise during cardiac rehabilitation in patients with angina pectoris, recent acute myocardial infarction, or coronary bypass surgery.

The effect of exercise training on the heart rate recovery (HRR) response to submaximal effort was examined in 81 patients during 12 weeks of phase II cardiac rehabilitation. Although HRR after submaximal effort was relatively reduced in older patients with heart disease and in women, its increase during exercise training in men and women of all ages was consistent with enhancement of parasympathetic tone during activities of daily living.

Activities of Daily Living↗
PubMed1997

Changes in skeletal muscle morphology and biochemistry after cardiac transplantation.

Skeletal muscle biopsies (vastus lateralis) were performed in 12 patients (mean age 47 +/- 11 years) before and at 3 and 12 months after cardiac transplantation. Fiber type analysis revealed a predominance of type II fibers before cardiac transplantation (66 +/- 10%); the ratio did not change after transplantation. Fiber cross-sectional area increased by 35% to 39% in all fiber types by 12 months after cardiac transplantation. Fiber cross-sectional area, however, remained below the reported normal values. The number of capillaries surrounding each fiber did not change after cardiac transplantation. Skeletal muscle enzyme activity of phosphofructokinase, citrate synthase, and beta-hydroxyacyl coenzyme A dehydrogenase increased by 26%, 47%, and 63%, respectively, after cardiac transplantation (p < 0.05). Peak oxygen uptake also increased significantly after cardiac transplantation (19.5 +/- 8.1 ml/kg/min at 12 months vs 9.8 +/- 1.4 ml/kg/min before transplant, p < 0.01); however, uptake remained 40% below that of predicted. Thus, significant improvement in skeletal muscle morphology and biochemistry occurs in the first year after cardiac transplantation in association with improved exercise capacity. Recovery, however, may be incomplete, which could explain residual impairment of exercise capacity in these patients.

3-Hydroxyacyl CoA Dehydrogenases↗
PubMed1997

Benefits of cardiac rehabilitation and exercise training in elderly women.

Elderly women are frequently not referred to cardiac rehabilitation programs. The data provided in this study, which demonstrate the benefits on exercise capacity, obesity indexes, behavioral characteristics, quality of life, and plasma lipids, support the idea that elderly women should be routinely referred to and vigorously encouraged to attend these programs following major coronary artery disease events.

Adipose Tissue↗
PubMed1996

Sequential assessment of exercise tolerance in heart transplantation compared with coronary artery bypass surgery after phase II cardiac rehabilitation.

To investigate the improvement in exercise capacity of transplant patients after an early postoperative (phase II) cardiac rehabilitation program during the first year after surgery, we analyzed retrospectively exercise capacity within 3 months (at the completion of phase II rehabilitation) and 1 year after surgery in 17 orthotopic heart transplantation patients (15 men and 2 women) and 17 age- and gender-matched coronary artery bypass graft (CABG) patients. All patients participated in a phase II cardiac rehabilitation exercise program followed by a home-based exercise program. At the completion of phase II cardiac rehabilitation, mean peak oxygen (VO2) adjusted for body weight in heart transplant patients was not significantly different from that in CABG patients (19.7 +/- 3.7 vs 21.9 +/- 4.1 ml/kg/min), and oxygen pulse at peak exercise did not differ between the 2 groups (11.5 +/- 2.5 vs 12.6 +/- 2.4 ml/beat). Between 3 months and 1 year after surgery, CABG patients had a marked increase in exercise time, increase in heart rate from rest to peak exercise (heart rate reserve), peak VO2, and oxygen pulse. In contrast, heart transplant patients had a significant but only modest increase in peak VO2, and were much more limited in exercise capacity at 1 year than were CABG patients (21.3 +/- 3.9 vs 27.4 +/- 4.7 ml/kg/min, p <0.0001). In our limited patient population, usual phase I rehabilitation with subsequent home-based exercise training was inadequate to improve the exercise capacity of heart transplant patients, and different rehabilitation protocols, such as long-term supervised exercise training, specific to this patient group may be indicated.

Blood Pressure↗
PubMed1999

Effects of cardiac rehabilitation and exercise training on peak aerobic capacity and work efficiency in obese patients with coronary artery disease.

Using cardiopulmonary stress testing in 76 lean and 99 obese coronary patients, we demonstrated significant improvements in both groups for anaerobic threshold, peak aerobic capacity (VO2), peak VO2 corrected for lean body mass, and work efficiency. Although anaerobic threshold and peak VO2 are adequate to describe exercise capacity in lean patients, baseline and post-training data are best exemplified by peak VO2 corrected for lean body mass and work efficiency in obese coronary patients.

Aged↗
PubMed2000

Maximal exercise systolic pressure, exercise training, and mortality in myocardial infarction patients.

The relation of maximal exercise systolic pressure to physical conditioning and to mortality was determined in 641 men with > or =1 myocardial infarctions. Each performed a standardized multistage exercise test before randomized assignment either to an exercise group or a control group and at scheduled periodic intervals over 3 years. This study compares 123 men with maximal exercise systolic pressures (MESP) of < or =140 mm Hg with 518 men whose maximal exercise systolic pressure was > or =140 mm Hg. At baseline, the 2 groups were comparable for age, entry time since the occurrence of the qualifying cardiac event, and reported use of antihypertensive medications. Men with low MESP used more beta blockers, had lower systolic pressure measurements at rest and by definition at maximal exercise, and lower work capacity than men with higher levels of MESP. Men with low MESP experienced: (1) no reduction in mortality with exercise conditioning (p<0.86), and (2) a significantly higher mortality rate over 3 years (p<0.003) compared with men with higher levels of MESP. The relation of a low MESP to mortality persisted: (1) whether MESP or work capacity increased from the baseline exercise test to the last performed exercise test, and (2) whether it was measured at low (<6 METs) or high (> or =6 METs) levels of work capacity. We conclude that low maximal exercise systolic blood pressure is a predictor of mortality and is associated with an ineffective training response in men with myocardial infarction.

Blood Pressure↗
PubMed1995

Effects of cardiac rehabilitation programs on exercise capacity, coronary risk factors, behavioral characteristics, and quality of life in a large elderly cohort.

Despite the limitations of our study, we believe the current data support the beneficial effects of cardiac rehabilitation and exercise training in the elderly, including modest improvements in lipids, obesity indexes, behavioral characteristics, and quality-of-life parameters, and marked improvements in exercise capacity. In fact, elderly patients had greater improvements than younger patients in both exercise capacity and mental health after cardiac rehabilitation. These data indicate that elderly patients with CAD should be routinely referred to and vigorously encouraged to pursue formal outpatient cardiac rehabilitation and exercise training programs after major CAD events.

Aged↗
PubMed2003

Role of hylan G-F 20 in treatment of osteoarthritis of the hip joint.

OBJECTIVE: To study the efficacy of hylan G-F 20 in the treatment of osteoarthritis (OA) of the hip joint. DESIGN: Prospective within-group study. SETTING: Musculoskeletal rehabilitation clinic. PARTICIPANTS: Twenty-two patients (25 hips) with hip joint OA who had failed to find pain relief from conservative methods such as physical therapy, exercises, and steroid injections. Demographics included 14 men and 11 women (mean age, 56.4y), 21 of whom had mild to moderate OA and 4 of whom had severe OA of the hips. INTERVENTION: Each hip joint was injected with 2mL of hylan G-F 20 at 2, 3, and 4 weeks and fluoroscopic lavage with 100mL of normal saline at week 1. All patients had standard hip exercise regimen after the injection. MAIN OUTCOME MEASURES: American Academy of Orthopaedic Surgeons (AAOS) Lower Limb Core Scale score and visual numeric pain score. RESULTS: At 1-year follow-up, the AAOS Lower Limb Core Scale score improved from a preinjection mean of 44.2 to a follow-up mean of 86.1 (P<.05). The mean visual numeric pain score improved from a preinjection mean of 8.7 (range, 6.4-10) to a follow-up mean of 2.3 (range, 0-7.2). The overall success rate was 84%. In patients with mild to moderate OA, the mean pain score decreased from a preinjection value of 7.8 to a follow-up value of 1.7. The success rate was 90.5% in that subgroup. In patients with severe OA, the mean pain score decreased from a preinjection value of 9.1 to a follow-up value of 3.8. The success rate was 50% in that subgroup. There were no complications related to the injection. CONCLUSION: Use of hylan G-F 20 injection is a viable option for treatment of mild to moderate OA of the hip joint.

Adult↗
PubMed2003

A randomized controlled trial of the effect of psychotherapy on anxiety and depression in chronic obstructive pulmonary disease.

OBJECTIVE: To assess the effect of psychotherapy on the anxiety and depression levels of patients with chronic obstructive pulmonary disease (COPD). DESIGN: A blind, randomized, controlled trial. SETTING: Outpatient university pulmonary rehabilitation program in Brazil. PARTICIPANTS: Thirty patients with COPD (mean age, 60.33y; 22 men) attending a pulmonary rehabilitation program were randomized into 2 groups: experimental group (G1) and control group (G2). Both groups underwent a 12-week treatment program. INTERVENTIONS: Group 1 (n=14) participated in 24 sessions of physical exercise, 24 sessions of physiotherapy, 12 psychologic sessions, and 3 educational sessions. Group 2 did not participate in psychotherapy sessions. MAIN OUTCOME MEASURES: All patients were evaluated at baseline and at completion of the pulmonary rehabilitation program by using 3 instruments: the Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), and 6-minute walk distance (6MWD). RESULTS: Both groups showed statistically significant improvements on the 6MWD (G1, P<.001; G2, P=.03). Only G1 had a significant reduction in anxiety and depression levels (G1: BAI, P<.001; BDI, P<.001; G2: BAI, P=.156; BDI, P=.142). Statistically significant differences existed between G1 and G2 for BAI (P<.001) and BDI (P=.02). CONCLUSIONS: Including psychotherapy in a pulmonary rehabilitation program for COPD reduced patients' anxiety and depression levels but did not modify 6MWD performance.

Analysis of Variance↗