@article{KatherHadzicHehleetal.2020,
  author    = {Kather, Fritz and Hadzic, Miralem and Hehle, Teresa and Eichler, Sarah and Klein, Julia and V{\"o}ller, Heinz and Salzwedel, Annett},
  title     = {Test-retest reliability of the Mini Nutritional Assessment- Short Form (MNA-SF) in older patients undergoing cardiac rehabilitation},
  series = {Journal of geriatric cardiology},
  volume    = {17},
  journal   = {Journal of geriatric cardiology},
  number    = {9},
  publisher = {English China Online Journals, ECOJ},
  address   = {Windsor [u.a.]},
  issn      = {1671-5411},
  doi       = {10.11909/j.issn.1671-5411.2020.09.007},
  pages     = {574 -- 579},
  year      = {2020},
  language  = {en}
}
@article{DobberkeBaritelloHadzicetal.2022,
  author    = {Dobberke, Jeanette and Baritello, Omar and Hadzic, Miralem and V{\"o}ller, Heinz and Eichler, Sarah and Salzwedel, Annett},
  title     = {Test-retest reliability of center of pressure measures for postural control assessment in older cardiac patients},
  series = {Gait \& posture : official journal of Gait and Clinical Movement Analysis Society (GCMAS) and European Society of Movement Analysis in Adults and Children (ESMAC)},
  volume    = {92},
  journal   = {Gait \& posture : official journal of Gait and Clinical Movement Analysis Society (GCMAS) and European Society of Movement Analysis in Adults and Children (ESMAC)},
  publisher = {Elsevier Science},
  address   = {Amsterdam},
  issn      = {0966-6362},
  doi       = {10.1016/j.gaitpost.2021.12.011},
  pages     = {359 -- 363},
  year      = {2022},
  abstract  = {Background Elderly patients are a growing population in cardiac rehabilitation (CR). As postural control declines with age, assessment of impaired balance is important in older CR patients in order to predict fall risk and to initiate counteracting steps. Functional balance tests are subjective and lack adequate sensitivity to small differences, and are further subject to ceiling effects. A quantitative approach to measure postural control on a continuous scale is therefore desirable. Force plates are already used for this purpose in other clinical contexts, therefore could be a promising tool also for older CR patients. However, in this population the reliability of the assessment is not fully known. Research question Analysis of test-retest reliability of center of pressure (CoP) measures for the assessment of postural control using a force plate in older CR patients. Methods 156 CR patients (> 75 years) were enrolled. CoP measures (path length (PL), mean velocity (MV), and 95\% confidence ellipse area (95CEA)) were analyzed twice with an interval of two days in between (bipedal narrow stance, eyes open (EO) and closed (EC), three trials for each condition, 30 s per trial), using a force plate. For test-retest reliability estimation absolute differences (\& UDelta;: T0-T1), intraclass correlation coefficients (ICC) with 95\% confidence intervals, standard error of measurement and minimal detectable change were calculated. Results Under EO condition ICC were excellent for PL and MV (0.95) and good for 95CEA (0.88) with \& UDelta; of 10.1 cm (PL), 0.3 cm/sec (MV) and 1.5 cm(2 )(95CEA) respectively. Under EC condition ICC were excellent (> 0.95) for all variables with larger \& UDelta; (PL: 21.7 cm; MV: 0.7 cm/sec; 95CEA: 2.4 cm(2)) Significance In older CR patients, the assessment of CoP measures using a force plate shows good to excellent test retest reliability.},
  language  = {en}
}
@misc{ZochLesniakDobberkeSchlittetal.2020,
  author    = {Zoch-Lesniak, Beate and Dobberke, Jeanette and Schlitt, Axel and Bongarth, Christa and Glatz, Johannes and Sp{\"o}rl-D{\"o}nch, Sieglinde and Koran, Iryna and V{\"o}ller, Heinz and Salzwedel, Annett},
  title     = {Performance Measures for Short-Term Cardiac Rehabilitation in Patients of Working Age},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-47392},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-473922},
  pages     = {16},
  year      = {2020},
  abstract  = {Objective: To determine immediate performance measures for short-term, multicomponent cardiac rehabilitation (CR) in clinical routine in patients of working age, taking into account cardiovascular risk factors, physical performance, social medicine, and subjective health parameters and to explore the underlying dimensionality. Design: Prospective observational multicenter register study in 12 rehabilitation centers throughout Germany. Setting: Comprehensive 3-week CR.},
  language  = {en}
}
@article{ZochLesniakDobberkeSchlittetal.2020,
  author    = {Zoch-Lesniak, Beate and Dobberke, Jeanette and Schlitt, Axel and Bongarth, Christa and Glatz, Johannes and Sp{\"o}rl-D{\"o}nch, Sieglinde and Koran, Iryna and V{\"o}ller, Heinz and Salzwedel, Annett},
  title     = {Performance Measures for Short-Term Cardiac Rehabilitation in Patients of Working Age},
  series = {Archives of Rehabilitation Research and Clinical Translation},
  volume    = {2},
  journal   = {Archives of Rehabilitation Research and Clinical Translation},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2590-1095},
  doi       = {10.1016/j.arrct.2020.100043},
  pages     = {14},
  year      = {2020},
  abstract  = {Objective: To determine immediate performance measures for short-term, multicomponent cardiac rehabilitation (CR) in clinical routine in patients of working age, taking into account cardiovascular risk factors, physical performance, social medicine, and subjective health parameters and to explore the underlying dimensionality. Design: Prospective observational multicenter register study in 12 rehabilitation centers throughout Germany. Setting: Comprehensive 3-week CR.},
  language  = {en}
}
@article{SalzwedelNosperRoehrigetal.2014,
  author    = {Salzwedel, Annett and Nosper, Manfred and Roehrig, Bernd and Linck-Eleftheriadis, Sigrid and Strandt, Gert and V{\"o}ller, Heinz},
  title     = {Outcome quality of in-patient cardiac rehabilitation in elderly patients - identification of relevant parameters},
  series = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  volume    = {21},
  journal   = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  number    = {2},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {2047-4873},
  doi       = {10.1177/2047487312469475},
  pages     = {172 -- 180},
  year      = {2014},
  abstract  = {Background: Outcome quality management requires the consecutive registration of defined variables. The aim was to identify relevant parameters in order to objectively assess the in-patient rehabilitation outcome. Methods: From February 2009 to June 2010 1253 patients (70.9 +/- 7.0 years, 78.1\% men) at 12 rehabilitation clinics were enrolled. Items concerning sociodemographic data, the impairment group (surgery, conservative/interventional treatment), cardiovascular risk factors, structural and functional parameters and subjective health were tested in respect of their measurability, sensitivity to change and their propensity to be influenced by rehabilitation. Results: The majority of patients (61.1\%) were referred for rehabilitation after cardiac surgery, 38.9\% after conservative or interventional treatment for an acute coronary syndrome. Functionally relevant comorbidities were seen in 49.2\% (diabetes mellitus, stroke, peripheral artery disease, chronic obstructive lung disease). In three key areas 13 parameters were identified as being sensitive to change and subject to modification by rehabilitation: cardiovascular risk factors (blood pressure, low-density lipoprotein cholesterol, triglycerides), exercise capacity (resting heart rate, maximal exercise capacity, maximal walking distance, heart failure, angina pectoris) and subjective health (IRES-24 (indicators of rehabilitation status): pain, somatic health, psychological well-being and depression as well as anxiety on the Hospital Anxiety and Depression Scale). Conclusion: The outcome of in-patient rehabilitation in elderly patients can be comprehensively assessed by the identification of appropriate key areas, that is, cardiovascular risk factors, exercise capacity and subjective health. This may well serve as a benchmark for internal and external quality management.},
  language  = {en}
}
@article{SalzwedelWegscheiderSchulzBehrendtetal.2019,
  author    = {Salzwedel, Annett and Wegscheider, Karl and Schulz-Behrendt, Claudia and D{\"o}rr, Gesine and Reibis, Rona Katharina and V{\"o}ller, Heinz},
  title     = {No impact of an extensive social intervention program on return to work and quality of life after acute cardiac event: a cluster-randomized trial in patients with negative occupational prognosis},
  series = {International archives of occupational and environmental health},
  volume    = {92},
  journal   = {International archives of occupational and environmental health},
  number    = {8},
  publisher = {Springer},
  address   = {New York},
  issn      = {0340-0131},
  doi       = {10.1007/s00420-019-01450-3},
  pages     = {1109 -- 1120},
  year      = {2019},
  abstract  = {Objectives To examine the effectiveness of extensive social therapy intervention during inpatient multi-component cardiac rehabilitation (CR) on return to work and quality of life in patients with low probability of work resumption after an acute cardiac event. Methods Patients after acute cardiac event with negative subjective expectations about return to work or unemployment (n = 354) were included and randomized in clusters of 3-6 study participants. Clusters were randomized for social counseling and therapy led by a social worker, six sessions of 60 min each in 3 weeks, or control group (usual care: individual counseling meeting by request). The return to work (RTW) status and change in quality of life (QoL, short form 12: Physical and Mental Component Summary PCS and MCS) 12 months after discharge from inpatient CR were outcome measures. Results The regression model for RTW showed no impact of the intervention (OR 1.1, 95\% CI 0.6-2.1, P = 0.79; n = 263). Predictors were unemployment prior to CR as well as higher anxiety values at discharge from CR. Likewise, QoL was not improved by social therapy (linear mixed model: Delta PCS 0.3, 95\% CI - 1.9 to 2.5; P = 0.77; n = 177; Delta MCS 0.7, 95\% CI - 1.9 to 3.3; P = 0.58; n = 215). Conclusions In comparison to usual care, an intensive program of social support for patients during inpatient cardiac rehabilitation after an acute cardiac event had no additional impact on either the rate of resuming work or quality of life.},
  language  = {en}
}
@article{EichlerSalzwedelReibisetal.2017,
  author    = {Eichler, Sarah and Salzwedel, Annett and Reibis, Rona and Nothroff, J{\"o}rg and Harnath, Axel and Schikora, Martin and Butter, Christian and Wegscheider, Karl and V{\"o}ller, Heinz},
  title     = {Multicomponent cardiac rehabilitation in patients after transcatheter aortic valve implantation},
  series = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  volume    = {24},
  journal   = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  number    = {3},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {2047-4873},
  doi       = {10.1177/2047487316679527},
  pages     = {257 -- 264},
  year      = {2017},
  abstract  = {Background: In the last decade, transcatheter aortic valve implantation has become a promising treatment modality for patients with aortic stenosis and a high surgical risk. Little is known about influencing factors of function and quality of life during multicomponent cardiac rehabilitation. Methods: From October 2013 to July 2015, patients with elective transcatheter aortic valve implantation and a subsequent inpatient cardiac rehabilitation were enrolled in the prospective cohort multicentre study. Frailty-Index (including cognition, nutrition, autonomy and mobility), Short Form-12 (SF-12), six-minute walk distance (6MWD) and maximum work load in bicycle ergometry were performed at admission and discharge of cardiac rehabilitation. The relation between patient characteristics and improvements in 6MWD, maximum work load or SF-12 scales were studied univariately and multivariately using regression models. Results: One hundred and thirty-six patients (80.6 +/- 5.0 years, 47.8\% male) were enrolled. 6MWD and maximum work load increased by 56.3 +/- 65.3 m (p < 0.001) and 8.0 +/- 14.9 watts (p < 0.001), respectively. An improvement in SF-12 (physical 2.5 +/- 8.7, p = 0.001, mental 3.4 +/- 10.2, p = 0.003) could be observed. In multivariate analysis, age and higher education were significantly associated with a reduced 6MWD, whereas cognition and obesity showed a positive predictive value. Higher cognition, nutrition and autonomy positively influenced the physical scale of SF-12. Additionally, the baseline values of SF-12 had an inverse impact on the change during cardiac rehabilitation. Conclusions: Cardiac rehabilitation can improve functional capacity as well as quality of life and reduce frailty in patients after transcatheter aortic valve implantation. An individually tailored therapy with special consideration of cognition and nutrition is needed to maintain autonomy and empower octogenarians in coping with challenges of everyday life.},
  language  = {en}
}
@article{ReibisSalzwedelBuhlertetal.2016,
  author    = {Reibis, Rona Katharina and Salzwedel, Annett and Buhlert, Hermann and Wegscheider, Karl and Eichler, Sarah and V{\"o}ller, Heinz},
  title     = {Impact of training methods and patient characteristics on exercise capacity in patients in cardiovascular rehabilitation},
  series = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  volume    = {23},
  journal   = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {2047-4873},
  doi       = {10.1177/2047487315600815},
  pages     = {452 -- 459},
  year      = {2016},
  abstract  = {Aim We aimed to identify patient characteristics and comorbidities that correlate with the initial exercise capacity of cardiac rehabilitation (CR) patients and to study the significance of patient characteristics, comorbidities and training methods for training achievements and final fitness of CR patients. Methods We studied 557 consecutive patients (51.76.9 years; 87.9\% men) admitted to a three-week in-patient CR. Cardiopulmonary exercise testing (CPX) was performed at discharge. Exercise capacity (watts) at entry, gain in training volume and final physical fitness (assessed by peak O-2 utilization (VO2peak) were analysed using analysis of covariance (ANCOVA) models. Results Mean training intensity was 90.7 +/- 9.7\% of maximum heart rate (81\% continuous/19\% interval training, 64\% additional strength training). A total of 12.2 +/- 2.6 bicycle exercise training sessions were performed. Increase of training volume by an average of more than 100\% was achieved (difference end/beginning of CR: 784 +/- 623 wattsxmin). In the multivariate model the gain in training volume was significantly associated with smoking, age and exercise capacity at entry of CR. The physical fitness level achieved at discharge from CR as assessed by VO2peak was mainly dependent on age, but also on various factors related to training, namely exercise capacity at entry, increase of training volume and training method. Conclusion CR patients were trained in line with current guidelines with moderate-to-high intensity and reached a considerable increase of their training volume. The physical fitness level achieved at discharge from CR depended on various factors associated with training, which supports the recommendation that CR should be offered to all cardiac patients.},
  language  = {en}
}
@article{SalzwedelWegscheiderHerichetal.2015,
  author    = {Salzwedel, Annett and Wegscheider, Karl and Herich, Lena and Rieck, Angelika and Strandt, Gert and V{\"o}ller, Heinz},
  title     = {Impact of clinical and sociodemographic patient characteristics on the outcome of cardiac rehabilitation in older patients},
  series = {Aging clinical and experimental research},
  volume    = {27},
  journal   = {Aging clinical and experimental research},
  number    = {3},
  publisher = {Springer},
  address   = {New York},
  issn      = {1594-0667},
  doi       = {10.1007/s40520-014-0283-2},
  pages     = {315 -- 321},
  year      = {2015},
  abstract  = {Background Cardiac rehabilitation (CR) seeks to simultaneously improve several outcome parameters related to patient risk factors, exercise capacity and subjective health. A single score, the multiple outcome criterion (MOC), comprised of alterations in 13 outcome variables was used to measure the overall success of CR in an older population. As this success depends on the older patient's characteristics at the time of admission to CR, we attempted to determine the most important influences. Methods The impact of baseline characteristics on the success of CR, measured by MOC, was analysed using a mixed model for 1,220 older patients (70.9 +/- A 7.0 years, 78.3 \% men) who enrolled in 12 CR clinics. A multitude of potentially influential baseline patient characteristics was considered including sociodemographic variables, comorbidity, duration of hospital stay, exercise capacity, cardiovascular risk factors, emotional status, and laboratory and echocardiographic data. Results Overall, CR was successful, as indicated by the mean value of the MOC (0.6 +/- A 0.45; min -1.0, max 2.0; positive values denoting improvement, negative ones deterioration). Examples of association with negative MOC values included smoking (MOC -0.15, p < 0.001), female gender (MOC -0.07, p = 0.049), and a longer hospital stay (MOC -0.03, p = 0.03). An example of association with positive MOC value was depression score (MOC 0.06, p = 0.003). Further associations included maximal exercise capacity, blood pressure, heart rate and the rehabilitation centre attended. Conclusion Our results emphasize the necessity to take into consideration baseline characteristics when evaluating the success of CR and setting treatment targets for older patients.},
  language  = {en}
}
@inproceedings{NitardySalzwedelWegscheideretal.2012,
  author    = {Nitardy, Aischa and Salzwedel, Annett and Wegscheider, Karl and Jawari, Amir and Buhlert, Hermann and V{\"o}ller, Heinz},
  title     = {Effect of cardiac rehabilitation on functional and emotional status in patients after transcatheter aortic-valve replacement},
  series = {Circulation : an American Heart Association journal},
  volume    = {126},
  booktitle = {Circulation : an American Heart Association journal},
  number    = {21},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {0009-7322},
  pages     = {1},
  year      = {2012},
  language  = {en}
}