Hans-Joachim Menzel

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Das Gesundheitswesen wird technisch durchorganisiert. Der kranke Mensch wird vielfach eingebunden: Er soll Informationsmaterial studieren, über Einwilligungen entscheiden, zwischen Alternativen auswählen, Zugriffe durch Dritte freigeben. Besonders in komplexen Telematik-Projekten kann für die Betroffenen aus dem Freiheitsrecht auf informationelle(More)
Assessment of lower extremity bilateral asymmetries in soccer players is important for both injury prevention and performance. The purpose of this investigation was to compare isokinetic knee extensor assessment of asymmetry with a more specific countermovement jump (CMJ). Forty-six Brazilian male professional soccer players participated in this study. The(More)
The objective was to estimate the reliability and criterion-related validity of the Jump-and-Reach Test for the assessment of squat, countermovement, and drop jump performance of 32 male Brazilian professional volleyball players. Performance of squat, countermovement, and drop jumps with different dropping heights was assessed on the Jump-and-Reach Test and(More)
The aim of this study was to present a new training algorithm using artificial neural networks called multi-objective least absolute shrinkage and selection operator (MOBJ-LASSO) applied to the classification of dynamic gait patterns. The movement pattern is identified by 20 characteristics from the three components of the ground reaction force which are(More)
The purpose of this study was to identify bilateral dynamic asymmetries of the lower limbs of forty six Brazilian professional soccer players by countermovement jumps on a double force platform. Maximal ground reaction force, impulse and maximal power output were registered and bilateral asymmetries identified if the bilateral difference was greater than(More)
Lower extremity kinetic data during walking of 12 people with chronic poststroke were reanalyzed, using functional analysis of variance (FANOVA). To perform the FANOVA, the whole curve is represented by a mathematical function, which spans the whole gait cycle and avoids the need to identify isolated points, as required for traditional parametric analyses(More)
This study aimed to identify the characteristics associated to quality of life (QOL) in users of four Basic Health Units (Unidades Básicas de Saúde, UBS) in Belo Horizonte, Minas Gerais. We conducted a cross-sectional study with 930 adult users enrolled in the selected UBS, using a questionnaire containing the WHOQOL-bref instrument and questions about(More)
BACKGROUND Stretching exercises are able to promote adaptations in the muscle-tendon unit (MTU), which can be tested through physiological and biomechanical variables. Identifying the key variables in MTU adaptations is crucial to improvements in training. OBJECTIVE To perform an exploratory factor analysis (EFA) involving the variables often used to(More)
Schon vor dem bundesweit publik gewordenen Datenmissbrauch zulasten einer prominenten Patientin des Hamburger Universitätsklinikums (UKE) hatte der Hamburgische Beauftragte für Datenschutz und Informationsfreiheit (HmbBfDI) das Berechtigungskonzept der ehemals staatlichen Krankenhäuser für den Zugriff auf elektronische Patientendaten geprüft. Zusammen mit(More)
Datenschutzrechtliche Einwilligungen zur Erfassung und Weitergabe persönlicher Daten dienen vielen Herren und vielen Zwecken, aber selten der Klärung von Kommunikationsbeziehungen. Was folgt, wenn die betroffene Person die Einwilligung ablehnt? Muss sie dann Nachteile hinnehmen? Lässt das Gesetz die Datenerhebung dennoch zu? Der Beitrag geht diesen Fragen(More)