@phdthesis{Streng2019,
  author    = {Streng, Katja},
  title     = {Erfassung der k{\"o}rperlichen Aktivit{\"a}t mittels Accelerometrie und Pedometrie},
  doi       = {10.25972/OPUS-18542},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-185428},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2019},
  abstract  = {Accelerometrie und Pedometrie sind objektive Verfahren zur Erfassung k{\"o}rperlicher Aktivit{\"a}t, wobei die Accelerometrie die Intensit{\"a}t k{\"o}rperlicher Bewegung durch Messung der Beschleunigung zeitlich hochaufgel{\"o}st misst, w{\"a}hrend bei der Pedometrie die Zahl der Schritte, typischerweise {\"u}ber einen ganzen Tag, erfasst wird. Ziel dieser Studie war es, das Pedometer-Modell Omron HJ-322 und zwei Accelerometer-Modelle der Marke ActiGraph (Modell GT1M und dessen Nachfolger GT3X+) hinsichtlich ihrer Beschreibung von Aktivit{\"a}t unter Alltagsbedingungen miteinander zu vergleichen. Dies erfolgte durch das parallele Tragen der jeweiligen Ger{\"a}te {\"u}ber 7 Tage durch 40 gesunden Probanden sowie 15 Mukoviszidose-Patienten, bei welchen die Aktivit{\"a}tsmessung im Rahmen der Studie ACTIVATE-CF (internationale Multicenterstudie zur Untersuchung der Auswirkung k{\"o}rperlicher Aktivit{\"a}t auf den Krankheitsverlauf bei Mukoviszidose) durchgef{\"u}hrt wurde. W{\"a}hrend eine Vergleichbarkeit zwischen beiden Accelerometer-Modellen gegeben ist, zeigten sich deutliche Unterschiede in der Schrittz{\"a}hlung zwischen Accelerometer und Pedometer. Starke Zusammenh{\"a}nge zwischen der mittels Schrittz{\"a}hler gemessenen Schrittzahl und verschiedenen Aktivit{\"a}ts-Indikatoren der Accelerometer konnten nachgewiesen werden.},
  subject      = {K{\"o}rperliche Aktivit{\"a}t},
  language  = {de}
}
@phdthesis{Muensterer2022,
  author    = {M{\"u}nsterer, Sascha Ottmar},
  title     = {Prognostische Wertigkeit der Herzfrequenz in Abh{\"a}ngigkeit von implantierten Devices bei akuter Herzinsuffizienz: Ergebnisse des prospektiven AHF-Registers W{\"u}rzburg},
  doi       = {10.25972/OPUS-28775},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-287755},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2022},
  abstract  = {Aims This study investigated, whether an activated R-mode, a surrogate of chronotropic incompetence in patients carrying a cardiovascular implantable electronic device (CIED), is associated with worse prognosis during and after an episode of acutely decompensated heart failure (AHF). Methods and Results Six hundred and twenty-three patients participating in an ongoing prospective cohort study that phenotypes and follows patients admitted for AHF were studied. We compared CIED carriers with R-mode stimulation (n=37) to CIED carriers not in R-mode (n=64) and patients without CIEDs (n=511). Mean heart rate on admission was significantly lower in R-mode patients vs. patients with CIED but without R-mode or patients withour CIED. In-hospital mortality was similar across groups, but age- and sex-adjusted 12-month mortality risk was higher in R-mode group. These effects persisted after multivariable adjustment for comorbidity burden. Conclusion In patients admitted for AHF, R-mode stimulation was associated with a significantly increased 12-month mortality risk. Our findings suggest that chronotropic incompetence per se mediates an adverse outcome and may not be adequately treated through accelerometer-based R-mode stimulation during and after an episode of AHF.},
  language  = {de}
}
@phdthesis{Muensterer2022,
  author    = {M{\"u}nsterer, Sascha Ottmar},
  title     = {Prognostische Wertigkeit der Herzfrequenz in Abh{\"a}ngigkeit von implantierten Devices bei akuter Herzinsuffizienz: Ergebnisse des prospektiven AHF-Registers W{\"u}rzburg},
  doi       = {10.25972/OPUS-33029},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-330293},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2022},
  abstract  = {Aims This study investigated, whether an activated R-mode, a surrogate of chronotropic incompetence in patients carrying a cardiovascular implantable electronic device (CIED), is associated with worse prognosis during and after an episode of acutely decompensated heart failure (AHF). Methods and Results Six hundred and twenty-three patients participating in an ongoing prospective cohort study that phenotypes and follows patients admitted for AHF were studied. We compared CIED carriers with R-mode stimulation (n=37) to CIED carriers not in R-mode (n=64) and patients without CIEDs (n=511). Mean heart rate on admission was significantly lower in R-mode patients vs. patients with CIED but without R-mode or patients withour CIED. In-hospital mortality was similar across groups, but age- and sex-adjusted 12-month mortality risk was higher in R-mode group. These effects persisted after multivariable adjustment for comorbidity burden. Conclusion In patients admitted for AHF, R-mode stimulation was associated with a significantly increased 12-month mortality risk. Our findings suggest that chronotropic incompetence per se mediates an adverse outcome and may not be adequately treated through accelerometer-based R-mode stimulation during and after an episode of AHF.},
  subject      = {Herzschrittmacher},
  language  = {de}
}