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      Call for Papers: Green Renal Replacement Therapy: Caring for the Environment

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      About Blood Purification: 3.0 Impact Factor I 5.6 CiteScore I 0.83 Scimago Journal & Country Rank (SJR)

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      Intradialytic exercise in hemodialysis patients: a systematic review and meta-analysis.

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          Hemodialysis (HD) patients are more inactive, leading to poor functional capacity and quality of life; this may be reversed with intradialytic exercise training. To systematically evaluate the efficacy and safety of intradialytic exercise for HD patients, we conducted a meta-analysis of the published randomized controlled trials.

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          Effects of endurance training on blood pressure, blood pressure-regulating mechanisms, and cardiovascular risk factors.

          Véronique A Cornelissen, Robert Fagard (2005)
          Previous meta-analyses of randomized controlled trials on the effects of chronic dynamic aerobic endurance training on blood pressure reported on resting blood pressure only. Our aim was to perform a comprehensive meta-analysis including resting and ambulatory blood pressure, blood pressure-regulating mechanisms, and concomitant cardiovascular risk factors. Inclusion criteria of studies were: random allocation to intervention and control; endurance training as the sole intervention; inclusion of healthy sedentary normotensive or hypertensive adults; intervention duration of > or =4 weeks; availability of systolic or diastolic blood pressure; and publication in a peer-reviewed journal up to December 2003. The meta-analysis involved 72 trials, 105 study groups, and 3936 participants. After weighting for the number of trained participants and using a random-effects model, training induced significant net reductions of resting and daytime ambulatory blood pressure of, respectively, 3.0/2.4 mm Hg (P<0.001) and 3.3/3.5 mm Hg (P<0.01). The reduction of resting blood pressure was more pronounced in the 30 hypertensive study groups (-6.9/-4.9) than in the others (-1.9/-1.6; P<0.001 for all). Systemic vascular resistance decreased by 7.1% (P<0.05), plasma norepinephrine by 29% (P<0.001), and plasma renin activity by 20% (P<0.05). Body weight decreased by 1.2 kg (P<0.001), waist circumference by 2.8 cm (P<0.001), percent body fat by 1.4% (P<0.001), and the homeostasis model assessment index of insulin resistance by 0.31 U (P<0.01); HDL cholesterol increased by 0.032 mmol/L(-1) (P<0.05). In conclusion, aerobic endurance training decreases blood pressure through a reduction of vascular resistance, in which the sympathetic nervous system and the renin-angiotensin system appear to be involved, and favorably affects concomitant cardiovascular risk factors.
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            Effects of resistance exercise training and nandrolone decanoate on body composition and muscle function among patients who receive hemodialysis: A randomized, controlled trial.

            Kirsten Johansen, Patricia Painter, Giorgos Sakkas … (2006)
            Patients who are on hemodialysis commonly experience muscle wasting and weakness, which have a negative effect on physical functioning and quality of life. The objective of this study was to determine whether anabolic steroid administration and resistance exercise training induce anabolic effects among patients who receive maintenance hemodialysis. A randomized 2 x 2 factorial trial of anabolic steroid administration and resistance exercise training was conducted in 79 patients who were receiving maintenance hemodialysis at University of California, San Francisco-affiliated dialysis units. Interventions included double-blinded weekly nandrolone decanoate (100 mg for women; 200 mg for men) or placebo injections and lower extremity resistance exercise training for 12 wk during hemodialysis sessions three times per week using ankle weights. Primary outcomes included change in lean body mass (LBM) measured by dual-energy x-ray absorptiometry, quadriceps muscle cross-sectional area measured by magnetic resonance imaging, and knee extensor muscle strength. Secondary outcomes included changes in physical performance, self-reported physical functioning, and physical activity. Sixty-eight patients completed the study. Patients who received nandrolone decanoate increased their LBM by 3.1 +/- 2.2 kg (P < 0.0001). Exercise did not result in a significant increase in LBM. Quadriceps muscle cross-sectional area increased in patients who were assigned to exercise (P = 0.01) and to nandrolone (P < 0.0001) in an additive manner. Patients who exercised increased their strength in a training-specific fashion, and exercise was associated with an improvement in self-reported physical functioning (P = 0.04 compared with nonexercising groups). Nandrolone decanoate and resistance exercise produced anabolic effects among patients who were on hemodialysis. Further studies are needed to determine whether these interventions improve survival.
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              Decreased survival among sedentary patients undergoing dialysis: results from the dialysis morbidity and mortality study wave 2.

              Peter Bacchetti, Kirsten Johansen, Ann O’Hare … (2003)
              Sedentary behavior is associated with an increased risk for death in the general population. However, the association between inactivity and mortality has not been studied in a large cohort of dialysis patients despite the high prevalence of sedentary behavior in this group. We used the Dialysis Morbidity and Mortality Study Wave 2, a prospective study of a national sample of 4,024 incident peritoneal dialysis and hemodialysis patients from 1996 to 1997, to determine whether sedentary behavior is associated with increased mortality during a 1-year period in this group after adjusting for confounding variables. The study population consisted of the 2,837 patients with accurate survival data who were able to ambulate and transfer. Eleven percent of the sedentary patients died during the study period compared with 5% of nonsedentary patients. In a survival analysis, sedentary behavior (hazard ratio, 1.62; 95% confidence interval, 1.16 to 2.27) was associated with an increased risk for death at 1 year after adjusting for all variables that we postulated might be associated with survival and for differences between sedentary and nonsedentary patients. Sedentary behavior is associated with an increased risk for mortality among dialysis patients similar in magnitude to that of other well-established risk factors, such as a one-point reduction in serum albumin concentration. More attention should be given to exercise behavior in dialysis patients, and controlled clinical trials are needed to further define the association of sedentary behavior with mortality. Copyright 2003 by the National Kidney Foundation, Inc.
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                Author and article information

                Journal
                Journal ID (iso-abbrev): Am. J. Nephrol.
                Title: American journal of nephrology
                ISSN (Electronic): 1421-9670
                ISSN (Print): 0250-8095
                Publication date (Electronic): 2014
                Volume: 40
                Issue: 5
                Affiliations
                [1 ] Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China.
                Article
                Publisher Item ID: 000368722
                DOI: 10.1159/000368722
                PubMed ID: 25504020
                SO-VID: f1036af4-31cc-41a6-b177-2af8309b23c9
                Copyright © © 2014 S. Karger AG, Basel.
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