BSP Business & Law School – Hochschule für Management und Recht
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Aim was to evaluate alterations of the non‐linear short‐term scaling exponent alpha1 of detrended fluctuation analysis (DFAa1) of heart rate (HR) variability (HRV) as a sensitive marker for assessing global physiological demands during multiple running intervals. As a secondary analysis, agreement of ECG‐derived respiratory frequency (EDR) compared to respiratory frequency (RF) derived from the metabolic cart was evaluated with the same chest belt device. Fifteen trained female and male long‐distance runners completed four running bouts over 5 min on a treadmill at marathon pace. During the last 3 min of each bout gas exchange data and a single‐channel ECG for the determination of HR, DFAa1 of HRV, EDR and RF were analyzed. Additionally, blood lactate concentration (BLC) was determined and rating of perceived exertion (RPE) was requested. DFAa1, oxygen consumption, BLC, and RPE showed stable behaviors comparing the running intervals. Only HR (p < 0.001, d = 0.17) and RF (p = 0.012, d = 0.20) indicated slight increases with small effect sizes. In addition, results point towards inter‐individual differences in all internal load metrics. The comparison of EDR with RF during running revealed high correlations (r = 0.80, p < 0.001, ICC3,1 = 0.87) and low mean differences (1.8 ± 4.4 breaths/min), but rather large limits of agreement with 10.4 to −6.8 breaths/min. Results show the necessity of EDR methodology improvement before being used in a wide range of individuals and sports applications. Relationship of DFAa1 to other internal load metrics, including RF, in quasi‐steady‐state conditions bears the potential for further evaluation of exercise prescription and may enlighten decoupling mechanisms during prolonged exercise bouts.
The study explores the validity of the nonlinear index alpha 1 of detrended fluctuation analysis (DFAa1) of heart rate (HR) variability for exercise prescription in prolonged constant load running bouts of different intensities. 21 trained endurance athletes (9 w and 12 m) performed a ramp test for ventilatory threshold (vVT1 and vVT2) and DFAa1‐based (vDFAa1‐1 at 0.75 and vDFAa1‐2 at 0.5) running speed detection as well as two 20‐min running bouts at vDFAa1‐1 and vDFAa1‐2 (20‐vDFAa1‐1 and 20‐vDFAa1‐2), in which HR, oxygen consumption (VO2), respiratory frequency (RF), DFAa1, and blood lactate concentration [La‐] were assessed. 20‐vDFAa1‐2 could not be finished by all participants (finisher group (FG), n = 15 versus exhaustion group (EG), n = 6). Despite similar mean external loads of vDFAa1‐1 (10.6 ± 1.9 km/h) and vDFAa1‐2 (13.1 ± 2.4 km/h) for all participants compared to vVT1 (10.8 ± 1.7 km/h) and vVT2 (13.2 ± 1.9 km/h), considerable differences were present for 20‐vDFAa1‐2 in EG (15.2 ± 2.4 km/h). 20‐vDFAa1‐1 and 20‐DFAa1‐2 yielded significant differences in FG for HR (76.2 ± 5.7 vs. 86.4 ± 5.9 %HRPEAK), VO2 (62.1 ± 5.0 vs. 77.5 ± 8.6 %VO2PEAK), RF (40.6 ± 11.3 vs. 46.1 ± 9.8 bpm), DFA‐a1 (0.86 ± 0.23 vs. 0.60 ± 0.15), and [La‐] (1.41 ± 0.45 vs. 3.34 ± 2.24 mmol/L). Regarding alterations during 20‐vDFAa1‐1, all parameters showed small changes for all participants, while during 20‐vDFAa1‐2 RF and DFAa1 showed substantial alterations in FG (RF: 15.6% and DFAa1: −12.8%) and more pronounced in EG (RF: 20.1% and DFAa1: −35.9%). DFAa1‐based exercise prescription from incremental testing could be useful for most participants in prolonged running bouts, at least in the moderate to heavy intensity domain. In addition, an individually different increased risk of overloading may occur in the heavy to severe exercise domains and should be further elucidated in the light of durability and decoupling assessment.
Orthostatic testing, involving the transition from different body positions (e.g., from lying or sitting position to an upright or standing position), offers valuable insights into the autonomic nervous system (ANS) functioning and cardiovascular regulation reflected through complex adjustments in, e.g., measures of heart rate (HR) and heart rate variability (HRV). This narrative review explores the intricate physiological mechanisms underlying orthostatic stress responses and evaluates its significance for exercise science and sports practice. Into this matter, active orthostatic testing (e.g., active standing up) challenges the cardiovascular autonomic function in a different way than a passive tilt test. It is well documented that there is a transient reduction in blood pressure while standing up, leading to a reflex increase in HR and peripheral vasoconstriction. After that acute response systolic and diastolic blood pressures are usually slightly increased compared to supine lying body position. The ANS response to standing is initiated by instantaneous cardiac vagal withdrawal, followed by sympathetic activation and vagal reactivation over the first 25–30 heartbeats. Thus, HR increases immediately upon standing, peaking after 15–20 beats, and is less marked during passive tilting due to the lack of muscular activity. Standing also decreases vagally related HRV indices compared to the supine position. In overtrained endurance athletes, both parasympathetic and sympathetic activity are attenuated in supine and standing positions. Their response to standing is lower than in non-overtrained athletes, with a tendency for further decreased HRV as a sign of pronounced vagal withdrawal and, in some cases, decreased sympathetic excitability, indicating a potential overtraining state. However, as a significant main characteristic, it could be noted that additional pathophysiological conditions consist in a reduced responsiveness or counter-regulation of neural drive in ANS according to an excitatory stimulus, such as an orthostatic challenge. Hence, especially active orthostatic testing could provide additional information about HR(V) reactivity and recovery giving valuable insights into athletes' training status, fatigue levels, and adaptability to workload. Measuring while standing might also counteract the issue of parasympathetic saturation as a common phenomenon especially in well-trained endurance athletes. Data interpretation should be made within intra-individual data history in trend analysis accounting for inter-individual variations in acute responses during testing due to life and physical training stressors. Therefore, additional measures (e.g., psychometrical scales) are required to provide context for HR and HRV analysis interpretation. However, incidence of orthostatic intolerance should be evaluated on an individual level and must be taken into account when considering to implement orthostatic testing in specific subpopulations. Recommendations for standardized testing procedures and interpretation guidelines are developed with the overall aim of enhancing training and recovery strategies. Despite promising study findings in the above-mentioned applied fields, further research, thorough method comparison studies, and systematic reviews are needed to assess the overall perspective of orthostatic testing for training monitoring and fine-tuning of different populations in exercise science and training.
Background Situational Judgment Tests (SJTs) are commonly used in medical school admissions. However, it has been consistently found that native speakers tend to score higher on SJTs than non-native speakers, which can be particularly problematic in the admission context due to the potential risk of limited fairness. Besides type of SJT, awareness of time limit may play a role in subgroup differences in the context of cognitive load theory. This study examined the influence of SJT type and awareness of time limit against the background of language proficiency in a quasi high-stakes setting. Methods Participants (N = 875), applicants and students in healthcare-related study programs, completed an online study that involved two SJTs: one with a text-based stimulus and response format (HAM-SJT) and another with a video-animated stimulus and media-supported response format (Social Shapes Test, SST). They were randomly assigned to a test condition in which they were either informed about a time limit or not. In a multilevel model analysis, we examined the main effects and interactions of the predictors (test type, language proficiency and awareness of time limit) on test performance (overall, response percentage). Results There were significant main effects on overall test performance for language proficiency in favor of native speakers and for awareness of time limit in favor of being aware of the time limit. Furthermore, an interaction between language proficiency and test type was found, indicating that subgroup differences are smaller for the animated SJT than for the text-based SJT. No interaction effects on overall test performance were found that included awareness of time limit. Conclusion A SJT with video-animated stimuli and a media-supported response format can reduce subgroup differences in overall test performance between native and non-native speakers in a quasi high-stakes setting. Awareness of time limit is equally important for high and low performance, regardless of language proficiency or test type.
Background: Pharmacotherapy is the cornerstone of treatment for heart failure with reduced ejection fraction (HFrEF). The Canadian Cardiovascular Society and Canadian Heart Failure Society have defined guideline-directed medical therapy (GDMT) as 4 foundational medications. Despite strong recommendations for use of GDMT in HFrEF, current practice alignment with guidelines is unknown. Objectives: The primary objectives were to determine the proportion of patients for whom optimized GDMT for HFrEF was prescribed, to describe the doses of foundational medications achieved, and to describe any documented rationale limiting the optimization of GDMT. The secondary objectives were to describe documented pharmacist activities outside of scheduled multidisciplinary appointments at the heart function clinic (HFC) and to describe heart failure–related hospital encounters in 2021. Methods: A retrospective cohort study using medical records of patients with HFrEF who were receiving treatment at the Regina HFC as of December 31, 2021, was conducted. Results: Of the 129 patients included in the study, 61 (47.3%) were prescribed optimized GDMT. Specifically, within the individual foundational medication classes, 82.2% (106/129), 80.6% (104/129), 79.1% (102/129), and 74.4% (96/129) of patients received optimized therapy with a renin– angiotensin system inhibitor, mineralocorticoid receptor antagonist, β-blocker, and sodium–glucose cotransporter 2 inhibitor, respectively. Documented rationale was not available in 35.8% (38/106) of instances of suboptimal utilization of GDMT and in 41.7% (60/144) of instances of suboptimal dosing of GDMT. The most common documented rationale for suboptimal utilization was intolerance to the medication (33.0% [35/106]), and the most common rationale for suboptimal dosing was intolerance to dose increases (57.6% [83/144]). Pharmacists documented a total of 553 patient care activities for 58.9% (76/129) of the patients, outside scheduled multidisciplinary appointments in the HFC. Sixteen patients (12.4%) had heart failure–related hospital encounters a total of 31 times in 2021. Conclusions: Although many patients were receiving the benefits of multidisciplinary care at the Regina HFC, there remained a treatment gap in the use of GDMT for HFrEF. These findings will be used to inform strategies to improve clinic processes, including efficient identification of patients requiring optimization of GDMT, who would benefit the most from multidisciplinary care. Keywords: heart failure with reduced ejection fraction, guideline-directed medical therapy, heart function clinic, multidisciplinary clinic, pharmacist activities, hospitalization RÉSUMÉ Contexte : La pharmacothérapie est la pierre angulaire du traitement de l’insuffisance cardiaque avec fraction d’éjection réduite (ICFEr). La Société cardiovasculaire du Canada et la Société canadienne d’insuffisance cardiaque ont défini le traitement médical fondé sur les lignes directrices (TMFLD) selon 4 médicaments fondamentaux. Malgré de fortes recommandations pour l’utilisation du TMFLD dans l’ICFEr, l’alignement actuel de la pratique sur les lignes directrices est inconnu. Objectifs : Les objectifs principaux étaient de déterminer la proportion de patients pour lesquels un TMFLD optimisé pour l’ICFEr avait été prescrit, de décrire les doses obtenues et de décrire les justifications documentées limitant l’optimisation du TMFLD. Les objectifs secondaires, quant à eux, étaient de décrire les activités documentées du pharmacien en dehors des rendez-vous prévus à la clinique multidisciplinaire de fonction cardiaque et de recenser les consultations hospitalières liées à l’insuffisance cardiaque au cours de l’année civile 2021. Méthodes : Cette étude de cohorte rétrospective se basait sur les dossiers médicaux de patients atteints d’ICFEr qui recevaient un traitement à la clinique de fonction cardiaque de Regina au 31 décembre 2021. Résultats : Sur les 129 patients inclus dans l’étude, 61 d’entre eux (47,3 %) ont reçu un TMFLD optimisé. Plus précisément, en ce qui concerne les classes de médicaments fondamentaux, 82,2 % (106/129) ont reçu un traitement optimal avec un inhibiteur du système rénine-angiotensine, 80,6 % (104/129) avec un antagoniste des récepteurs minéralocorticoïdes, 79,1 % (102/129) avec un β-bloquant et 74,4 % (96/129) avec un inhibiteur sodique du cotransporteur de glucose 2. Dans 35,8 % (38/106) des cas d’utilisation sous-optimale du TMFLD et dans 41,7 % (60/144) des cas de dosage sous-optimal de celui-ci, la justification documentée était indisponible. Lorsqu’elles étaient documentées, les justifications les plus courantes étaient l’intolérance, respectivement, à l’utilisation d’un médicament (33.0% [35/106]) et à l’augmentation de la dose (57,6 % [83/144]). Les pharmaciens ont consigné un total de 553 activités de soins aux patients pour 58,9 % (76/129) des patients en dehors des rendez-vous multidisciplinaires prévus dans la clinique de fonction cardiaque. Seize (12,4 %) des patients ont été hospitalisés pour une insuffisance cardiaque 31 fois au total en 2021. Conclusion : Bien que de nombreux patients bénéficiaient des soins multidisciplinaires à la clinique de fonction cardiaque de Regina, une lacune subsistait dans le traitement par rapport à l’utilisation du TMFLD pour l’ICFEr. Ces résultats seront utilisés pour éclairer les stratégies visant à améliorer les processus cliniques, y compris l’identification efficace des patients nécessitant une optimisation du TMFLD, qui bénéficieraient le plus de soins multidisciplinaires. Mots-clés : insuffisance cardiaque avec fraction d’éjection réduite, traitement médical fondé sur les lignes directrices, clinique de la fonction cardiaque, clinique multidisciplinaire, activités du pharmacien, hospitalisation
Morphological cultural psychology has emerged based on Goethe’s understanding of science, according to which research on nature is best represented by a theory of formation and transformation. The task of designing this not statically, but as a generative process itself is the task of morphology. As a consequence, psychological morphology is conceived as a natural (nature appropriate) method. Its approach follows the formative processes (Impact Units) of experience and behavior, its method is itself dynamically composed—as ‘object formation’ over four versions of a descriptive reconstruction. Morphological description does not start from the psychological events in the individual, but addresses the profile of the human lifeworld that transcends individuals in the epochs of cultural history as well as in concrete everyday (brand, or organizational) cultures.
During his thirty-year professorship in Cologne (1963–93), Wilhelm Salber developed a concept, based on Goethe’s morphology and influenced by Gestalt and depth psychology traditions, to understand experience and behavior as formative processes. In the 1980s, he increasingly saw the purpose of these formative on and transformation processes in the self-treatment of the psyche, which occurs both on the grand scale of cultural history (Soul Revolution) and in the minutiae of everyday life worlds (Impact Units)—amplified by the manifestations of literature, film, and art. Gestalt and metamorphosis are characteristics of cultivation processes that occur as more or less epochal manifestations of experience and behavior and can be methodically represented through morphological description. The description of Impact Units combines statements from depth interviews according to gestalt-like sense contexts (fit, complement, continuation, intensification, counterflow) in four constant methodological turns (versions) into a structured overall text, which is reflected in the narrative forms of fairy tales and myths.
Creativity is a psychological process of individuals and at the same time the basis for economic development and innovation. Creativity is a mode in which people create and also an attitude of being. Creative persons solve problems and can develop better solutions for our social and economic environment—they innovate. We urgently need creativity and innovation in our changing and challenging times. That’s why modern leadership should have an understanding of creativity and creative work to enable and support creative developments. With the approaches of Erich Fromm, Ernst Bloch, and Konrad Thomas, I seek to show and develop the dialectic of creativity, innovation, and leadership from a business psychological perspective. For an empirical clarification of my arguments, I use short text passages from interviews and group discussions I have conducted.
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243 members
Charlotte Von Bernstorff
  • Personnel Psychology
Christian Wissing
  • Department of Business Administration
Patricia Graf
  • Department of Psychology
Alexander Alscher
  • Department of Business Administration
Helen Rademacher
  • Department of Psychology
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