@article{DosdallLoeckmann2023, author = {Dosdall, Henrik and L{\"o}ckmann, Teresa}, title = {Exploring terrorism prevention}, series = {Journal of organizational sociology}, volume = {1}, journal = {Journal of organizational sociology}, number = {1}, publisher = {De Gruyter}, address = {Berlin}, issn = {2752-2997}, doi = {10.1515/joso-2022-0002}, pages = {47 -- 72}, year = {2023}, abstract = {The article analyzes the investigations conducted by the Berlin police into the subsequent perpetrator of the vehicle-ramming attack at a Berlin Christmas market on December 19, 2016. We explore why the police closed these investigations prematurely and thereby focus on an attempt to prevent lone actor terrorism. The analysis shows that the police closed its investigations owing to organizational dynamics driven by an increasing need to justify further resource investments in the face of absent conclusive evidence and scarce resources in relation to the organizational case ecology. We propose hypotheses for future research and formulate three contributions to existing research on the sociology of police, terrorism prevention, and lone actor research.}, language = {en} } @masterthesis{Unterseher2023, type = {Bachelor Thesis}, author = {Unterseher, Lina}, title = {Der Nutzen verk{\"u}rzter Arbeitszeit mit Einkommensausgleich f{\"u}r den {\"o}ffentlichen Arbeitgeber}, doi = {10.25932/publishup-63934}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639343}, school = {Universit{\"a}t Potsdam}, pages = {V, 30, XV}, year = {2023}, abstract = {Dieses Literatur-Review verfolgt angesichts des gegenw{\"a}rtigen, gesteigerten {\"o}ffentlichen Interesses zum Thema von Arbeitszeitverk{\"u}rzungsmodellen mit Gehaltsausgleich das Ziel, den aktuellen deutsch- und englischsprachigen Forschungsstand zum m{\"o}glichen Nutzen von Arbeitszeitverk{\"u}rzungen mit Gehaltsausgleich (AZV+) f{\"u}r den {\"o}ffentlichen Arbeitgeber dar-zustellen und kritisch auszuwerten. Das Review basiert auf insgesamt zehn Publikationen, die zum großen Teil zu dem Schluss kommen, dass AZV+ zu keinen negativen Effekten, sondern zu entweder neutralen oder auch mehrheitlich positiven Auswirkungen auf die Arbeitgebendenseite f{\"u}hren. Dabei handelt es sich insbesondere um verbesserte Stresslevel, gesundheitliche Aspekte, gleichbleibende oder erh{\"o}hte Produktivit{\"a}t und Motivation/Energie sowie verringerte Absentismuszahlen. Die Anreiz-Beitrags-Theorie bietet sich als Erkl{\"a}rungsmodell f{\"u}r diese Ergebnisse gut an, da sie Aussagen dar{\"u}ber trifft, inwiefern Anreizsysteme wie eine AZV+ f{\"u}r Arbeitnehmende durch deren subjektive Bed{\"u}rfnisbefriedigung unter Einhaltung bestimmter Grenzen (keine {\"U}berschreitung der Beitragsforderungen durch Anpassung des Workload) zu Effekten f{\"u}hren kann, die sich indirekt auch positiv hinsichtlich der Organisationsziele aus-wirken. Die ebenfalls angewandten motivationstheoretischen Elemente der Cognitive Evaluation Theory und der Motivation Crowding Theorie eignen sich weniger gut in ihrer Erkl{\"a}rungskraft der untersuchten Effekte, da die Differenzierung verschiedener Motivationsarten im Rahmen der hier untersuchten Studien unerheblich zu sein scheint. Insgesamt ist die Studienlage zu dem Thema AZV+ generell, und auch speziell im {\"o}ffentlichen Sektor, sehr d{\"u}nn und bietet kaum M{\"o}glichkeiten f{\"u}r generalisierende Aus-sagen, sodass ein großer Forschungsbedarf zu diesem Thema besteht.}, language = {de} } @incollection{WetzelReedSchenck2023, author = {Wetzel, Johanna M. and Reed, Kate and Schenck, Marcia C.}, title = {"Writing with my professors"}, series = {Writing Together: Kollaboratives Schreiben mit Personen aus dem Feld}, volume = {45}, booktitle = {Writing Together: Kollaboratives Schreiben mit Personen aus dem Feld}, publisher = {Transcript Verlag}, address = {Bielefeld}, isbn = {978-3-8394-6399-4}, doi = {10.14361/9783839463994-002}, pages = {31 -- 53}, year = {2023}, abstract = {Kollaboratives Forschen quer zu hegemonialen Wissensordnungen gilt als wichtiger Baustein dekolonialer Wissenspraxis. Gemeinsame Schreibprozesse von Wissenschaftler*innen und ihren nicht-wissenschaftlichen Forschungspartner*innen sind allerdings selten und eine methodologische und forschungspraktische Reflexion fehlt. Die Beitr{\"a}ger*innen widmen sich diesen L{\"u}cken, indem sie erfolgreiche, aber auch gescheiterte Projekte kollaborativer Textproduktion zwischen Universit{\"a}t und Feld vorstellen und auf ihr Potenzial als transformative und dekoloniale Wissenspraxis befragen. So entsteht eine praktische Orientierungshilfe, die gleichzeitig die interdisziplin{\"a}re Diskussion anregt.}, language = {en} } @article{WortmannGischBergmannetal.2023, author = {Wortmann, Hanna Rosalie and Gisch, Ulrike Alexandra and Bergmann, Manuela M. and Warschburger, Petra}, title = {Exploring the longitudinal stability of food neophilia and dietary quality and their prospective relationship in older adults}, series = {Nutrients}, volume = {15}, journal = {Nutrients}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2072-6643}, doi = {10.3390/nu15051248}, pages = {16}, year = {2023}, abstract = {Poor dietary quality is a major cause of morbidity, making the promotion of healthy eating a societal priority. Older adults are a critical target group for promoting healthy eating to enable healthy aging. One factor suggested to promote healthy eating is the willingness to try unfamiliar foods, referred to as food neophilia. This two-wave longitudinal study explored the stability of food neophilia and dietary quality and their prospective relationship over three years, analyzing self-reported data from N = 960 older adults (MT1 = 63.4, range = 50-84) participating in the NutriAct Family Study (NFS) in a cross-lagged panel design. Dietary quality was rated using the NutriAct diet score, based on the current evidence for chronic disease prevention. Food neophilia was measured using the Variety Seeking Tendency Scale. The analyses revealed high a longitudinal stability of both constructs and a small positive cross-sectional correlation between them. Food neophilia had no prospective effect on dietary quality, whereas a very small positive prospective effect of dietary quality on food neophilia was found. Our findings give initial insights into the positive relation of food neophilia and a health-promoting diet in aging and underscore the need for more in-depth research, e.g., on the constructs' developmental trajectories and potential critical windows of opportunity for promoting food neophilia.}, language = {en} } @techreport{HerloUllrichVladova2023, type = {Working Paper}, author = {Herlo, Bianca and Ullrich, Andr{\´e} and Vladova, Gergana}, title = {Sustainable digital sovereignty}, series = {Weizenbaum series}, volume = {32}, journal = {Weizenbaum series}, publisher = {Weizenbaum Institute for the Networked Society - the German Internet Institute}, address = {Berlin}, issn = {2748-5587}, doi = {10.34669/WI.WS/32}, pages = {39}, year = {2023}, abstract = {This study is dedicated to the interdependencies between digital sovereignty and sustainable digitalization, which need to be explicitly linked to an increasing degree in political discourse, academia, and societal debates. Digital skills are the prerequisites for shaping digitalization in the interest of society and sustainable development.}, language = {en} } @article{VladovaUllrichSloaneetal.2023, author = {Vladova, Gergana and Ullrich, Andr{\´e} and Sloane, Mona and Renz, Andr{\´e} and Tsui, Eric}, title = {Editorial: new teaching and learning worlds}, series = {Frontiers in education}, volume = {8}, journal = {Frontiers in education}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2504-284X}, doi = {10.3389/feduc.2023.1175498}, pages = {1 -- 3}, year = {2023}, language = {en} } @incollection{Botsch2023, author = {Botsch, Gideon}, title = {Hundert Jahre Erziehung zu Gewalt und Hass}, series = {Jugendarbeit, Polizei und rechte Jugendliche in den 1990er Jahren}, booktitle = {Jugendarbeit, Polizei und rechte Jugendliche in den 1990er Jahren}, editor = {Bock, Vero and J{\"a}nicke, Christin and Kopke, Christoph and Lehnert, Esther and Mildenberger, Helene}, edition = {1. Auflage}, publisher = {Beltz Juventa}, address = {Weinheim ; Basel}, isbn = {978-3-7799-7294-5}, pages = {106 -- 117}, year = {2023}, language = {de} } @inproceedings{EsveldVriesBecchettietal.2023, author = {Esveld, Selma van and Vries, Nardo de and Becchetti, Sibilla and Dopper, Sofia and Valkenburg, Willem van and Carlon, May Kristine Jonson and Yokoi, Kensuke and Gayed, John Maurice and Suyama, Hiroshi and Cross, Jeffrey Scott and Jin, Tonje and Xue, Wei and Bruillard, {\´E}ric and Steinbeck, Hendrik and Meinel, Christoph and {\"O}zdemir, Paker Doğu and Can Bayer, Burak and Mercan, Duygu and Buyurucu, Gamze and Haugsbakken, Halvdan and Hagelia, Marianne and Ebner, Martin and Edelsbrunner, Sarah and Hohla-Sejkora, Katharina and Lipp, Silvia and Sch{\"o}n, Sandra and Xiaoxiao, Wang and Shuangshuang, Guo and Morales-Chan, Miguel and Amado-Salvatierra, H{\´e}ctor R. and Hern{\´a}ndez-Rizzardini, Rocael and Egloffstein, Marc and H{\"u}nemohr, Holger and Ifenthaler, Dirk and Dixon, Fred and Trabucchi, Stefania and Khaneboubi, Mehdi and Giannatelli, Ada and Tomasini, Alessandra and Staubitz, Thomas and Serth, Sebastian and Thomas, Max and Koschutnig-Ebner, Markus and Rampelt, Florian and Stetten, Alexander von and Wittke, Andreas and Theeraroungchaisri, Anuchai and Thammetar, Thapanee and Duangchinda, Vorasuang and Khlaisang, Jintavee and Mair, Bettina and Steinkellner, Iris and Stojcevic, Ivana and Zwiauer, Charlotte and Thirouard, Maria and Vill{\`e}sbrunne, Marie de la and Bernaert, Oliver and Nohr, Magnus and Alario Hoyos, Carlos and Delgado Kloos, Carlos and Kiendl, Doris and Terzieva, Liliya and Concia, Francesca and Distler, Petr and Law, Gareth and Macerata, Elena and Mariani, Mario and Mossini, Eros and Negrin, Maddalena and Štrok, Marko and Neub{\"o}ck, Kristina and Linschinger, Nadine and Lorenz, Anja and Bock, Stefanie and Schulte-Ostermann, Juleka and Moura Santos, Ana and Corti, Paola and Costa, Luis Felipe Coimbra and Utunen, Heini and Attias, Melissa and Tokar, Anna and Kennedy, Eileen and Laurillard, Diana and Zeitoun, Samar and Wasilewski, Julie and Shlaka, Souhad and Ouahib, Sara and Berrada, Khalid and Dietz, Michael and Roth, Dennis}, title = {EMOOCs 2023}, editor = {Meinel, Christoph and Schweiger, Stefanie and Staubitz, Thomas and Conrad, Robert and Alario Hoyos, Carlos and Ebner, Martin and Sancassani, Susanna and Żur, Agnieszka and Friedl, Christian and Halawa, Sherif and Gamage, Dilrukshi and Cross, Jeffrey and Jonson Carlon, May Kristine and Deville, Yves and Gaebel, Michael and Delgado Kloos, Carlos and von Schmieden, Karen}, doi = {10.25932/publishup-57645}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-576450}, year = {2023}, abstract = {From June 14 to June 16, 2023, Hasso Plattner Institute, Potsdam, hosted the eighth European MOOC Stakeholder Summit (EMOOCs 2023). The pandemic is fortunately over. It has once again shown how important digital education is. How well-prepared a country was could be seen in our schools, universities, and companies. In different countries, the problems manifested themselves differently. The measures and approaches to solving the problems varied accordingly. Digital education, whether micro-credentials, MOOCs, blended learning formats, or other e-learning tools, received a major boost. EMOOCs 2023 focusses on the effects of this emergency situation. How has it affected the development and delivery of MOOCs and other e-learning offerings all over Europe? Which projects can serve as models for successful digital learning and teaching? Which roles can MOOCs and micro-credentials bear in the current business transformation? Is there a backlash to the routine we knew from pre-Corona times? Or have many things become firmly established in the meantime, e.g. remote work, hybrid conferences, etc.? Furthermore, EMOOCs 2023 has a closer look at the development and formalization of digital learning. Micro-credentials are just the starting point. Further steps in this direction would be complete online study programs or full online universities. Another main topic is the networking of learning offers and the standardization of formats and metadata. Examples of fruitful cooperations are the MOOChub, the European MOOC Consortium, and the Common Micro-Credential Framework. The learnings, derived from practical experience and research, are explored in EMOOCs 2023 in four tracks and additional workshops, covering various aspects of this field. In this publication, we present papers from the conference's Research \& Experience Track, the Business Track and the International Track.}, language = {en} } @incollection{GonnermannBrandenburgerVladovaetal.2023, author = {Gonnermann, Jana and Brandenburger, Bonny and Vladova, Gergana and Gronau, Norbert}, title = {To what extent can individualisation in terms of different types of mode improve learning outcomes and learner satisfaction?}, series = {Proceedings of the 56th Annual Hawaii International Conference on System Sciences January 3-6, 2023}, booktitle = {Proceedings of the 56th Annual Hawaii International Conference on System Sciences January 3-6, 2023}, editor = {Bui, Tung X.}, publisher = {Department of IT Management Shidler College of Business University of Hawaii}, address = {Honolulu, HI}, isbn = {978-0-9981331-6-4}, pages = {123 -- 132}, year = {2023}, abstract = {With the latest technological developments and associated new possibilities in teaching, the personalisation of learning is gaining more and more importance. It assumes that individual learning experiences and results could generally be improved when personal learning preferences are considered. To do justice to the complexity of the personalisation possibilities of teaching and learning processes, we illustrate the components of learning and teaching in the digital environment and their interdependencies in an initial model. Furthermore, in a pre-study, we investigate the relationships between the learner's ability to (digital) self-organise, the learner's prior- knowledge learning in different variants of mode and learning outcomes as one part of this model. With this pre-study, we are taking the first step towards a holistic model of teaching and learning in digital environments.}, language = {en} } @article{StoneNicenboimVasishthetal.2023, author = {Stone, Kate and Nicenboim, Bruno and Vasishth, Shravan and R{\"o}sler, Frank}, title = {Understanding the effects of constraint and predictability in ERP}, series = {Neurobiology of language}, volume = {4}, journal = {Neurobiology of language}, number = {2}, publisher = {MIT Press}, address = {Cambridge, MA, USA}, issn = {2641-4368}, doi = {10.1162/nol_a_00094}, pages = {221 -- 256}, year = {2023}, abstract = {Intuitively, strongly constraining contexts should lead to stronger probabilistic representations of sentences in memory. Encountering unexpected words could therefore be expected to trigger costlier shifts in these representations than expected words. However, psycholinguistic measures commonly used to study probabilistic processing, such as the N400 event-related potential (ERP) component, are sensitive to word predictability but not to contextual constraint. Some research suggests that constraint-related processing cost may be measurable via an ERP positivity following the N400, known as the anterior post-N400 positivity (PNP). The PNP is argued to reflect update of a sentence representation and to be distinct from the posterior P600, which reflects conflict detection and reanalysis. However, constraint-related PNP findings are inconsistent. We sought to conceptually replicate Federmeier et al. (2007) and Kuperberg et al. (2020), who observed that the PNP, but not the N400 or the P600, was affected by constraint at unexpected but plausible words. Using a pre-registered design and statistical approach maximising power, we demonstrated a dissociated effect of predictability and constraint: strong evidence for predictability but not constraint in the N400 window, and strong evidence for constraint but not predictability in the later window. However, the constraint effect was consistent with a P600 and not a PNP, suggesting increased conflict between a strong representation and unexpected input rather than greater update of the representation. We conclude that either a simple strong/weak constraint design is not always sufficient to elicit the PNP, or that previous PNP constraint findings could be an artifact of smaller sample size.}, language = {en} } @article{PollatosMoenkemoellerGroppeetal.2023, author = {Pollatos, Olga and M{\"o}nkem{\"o}ller, Karla and Groppe, Karoline and Elsner, Birgit}, title = {Interoceptive accuracy is associated with benefits in decision making in children}, series = {Frontiers in psychology}, volume = {13}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2022.1070037}, pages = {13}, year = {2023}, abstract = {Introduction: Decision making results not only from logical analyses, but seems to be further guided by the ability to perceive somatic information (interoceptive accuracy). Relations between interoceptive accuracy and decision making have been exclusively studied in adults and with regard to complex, uncertain situations (as measured by the Iowa Gambling Task, IGT). Methods: In the present study, 1454 children (6-11 years) were examined at two time points (approximately 1 year apart) using an IGT as well as a delay-of-gratification task for sweets-items and toy-items. Interoceptive accuracy was measured using a child-adapted version of the Heartbeat Perception Task. Results: The present results revealed that children with higher, as compared to lower, interoceptive accuracy showed more advantageous choices in the IGT and delayed more sweets-items, but not toy-items, in a delay-of-gratification task at time point 2 but not at time point 1. However, no longitudinal relation between interoceptive accuracy and decision making 1 year later could be shown. Discussion: Results indicate that interoceptive accuracy relates to decision-making abilities in situations of varying complexity already in middle childhood, and that this link might consolidate across the examined 1-year period. Furthermore, the association of interoceptive accuracy and the delay of sweets-items might have implications for the regulation of body weight at a later age.}, language = {en} } @article{Haenel2023, author = {H{\"a}nel, Hilkje C.}, title = {(Moralisch) guter Sex}, series = {Zeitschrift f{\"u}r Praktische Philosophie}, volume = {9}, journal = {Zeitschrift f{\"u}r Praktische Philosophie}, number = {2}, publisher = {Universit{\"a}t Salzburg}, address = {Salzburg}, issn = {2409-9961}, doi = {10.22613/zfpp/9.2.2}, pages = {49 -- 78}, year = {2023}, abstract = {In einem k{\"u}rzlich erschienenen Artikel argumentiert Almut v. Wedelstaedt {\"u}berzeugend, warum Zustimmung zwar „die Bedingung f{\"u}r die Legitimation von Sex" ist (2020, 127), dass die moralische G{\"u}te von Sex aber nur dann einzusch{\"a}tzen ist, wenn wir darauf achten, ob die Beteiligten der Handlung sich auf Augenh{\"o}he begegnen. Die Idee ist: Es gibt legitime sexuelle Handlungen, die moralisch gut sind, und es gibt legitime sexuelle Handlungen, die moralisch besser sind. Hier m{\"o}chte ich die Idee des besseren Sexes genauer ausloten. W{\"a}hrend v. Wedelstaedt von moralisch gelungenem Sex spricht und somit auf der Ebene der moralischen Bewertung von Sex bleibt, m{\"o}chte ich die Frage danach stellen, was Sex qualitativ gut macht. Tats{\"a}chlich wird in der Zustimmungsdebatte meist davon ausgegangen, dass diese zwei Fragen wenig gemeinsam haben; ob eine sexuelle Handlung legitim ist, hat zun{\"a}chst nichts damit zu tun, ob diese auch gut ist. Ich werde drei Argumente liefern, warum wir legitimen Sex und qualitativ guten Sex zusammen betrachten sollten - und es wird sich zeigen, dass die gegenw{\"a}rtige philosophische und rechtstheoretische Debatte Zustimmung verk{\"u}rzt diskutiert und daher alleingenommen wenig hilfreich ist, stattdessen ben{\"o}tigt die Zustimmungsdebatte auch eine Untersuchung von qualitativ gutem Sex.}, language = {de} } @article{Steinroetter2023, author = {Steinr{\"o}tter, Bj{\"o}rn}, title = {The principle of equivalence of legal systems in private international law and its contribution to the foundation and preservation of peace}, series = {Zbornik radova Pravnog fakulteta, Novi Sad}, volume = {57}, journal = {Zbornik radova Pravnog fakulteta, Novi Sad}, number = {3}, publisher = {Univerzitet u Novom Sadu / Pravni Fakultet}, address = {Novi Sad}, issn = {0550-2179}, doi = {10.5937/zrpfns57-40597}, pages = {991 -- 1004}, year = {2023}, abstract = {Private international law (PIL) might seem disconnected from peacebuilding and peacekeeping efforts. However, this perception falls short. PIL, contrary to public international law's direct peacekeeping potential, indirectly contributes to peace by fostering mutual respect between states. The relationship between PIL and peace stems from the recognition and respect states show for each other's legal systems. PIL operates on the principle of comity, where states acknowledge the applicability of foreign laws to resolve cases. In essence, while PIL's impact on peace is indirect and modest, its emphasis on mutual respect and fair treatment contributes to peaceful relations between states, making it an important element in the broader context of peacebuilding and peacekeeping efforts. Private international law (PIL) does not determine substantive fairness for parties but focuses on localizing cases at a meta-level of conflict-of-laws. This localization is guided by party, trade, and regulatory interests, and is rooted in neutrality and respect for other legal systems. While the principle of equivalence and neutrality remains foundational in PIL, exceptions and limitations have been established over time to address specific scenarios, ensuring a balanced approach that respects both foreign legal systems and fundamental legal principles.}, language = {en} } @periodical{OPUS4-64252, title = {Poema}, volume = {2}, editor = {Lampart, Fabian and Hillebrandt, Claudia and Klimek, Sonja and M{\"u}ller, Ralph}, publisher = {Universit{\"a}tsverlag Kiel}, address = {Kiel}, issn = {2751-9821}, pages = {150}, year = {2023}, abstract = {POEMA ist ein komparatistisch angelegtes Jahrbuch, das sich der systematischen Erforschung von Lyrik und Gedicht widmet. Es richtet sich an Fachwissenschaftlerinnen und Fachwissenschaftler aller Phi­lologien wie auch der mit anderen Kunstformen befassten Wissenschaften und der philosophischen {\"A}sthetik. POEMA erscheint als Open-Access-Journal wie auch als Print-on-Demand-Fassung im Uni­versit{\"a}tsverlag Kiel | Kiel University Publishing. Die wissenschaftlichen Beitr{\"a}ge werden in einem double-blind Peer-Review-Verfahren begutachtet.}, language = {mul} } @article{KimLinHenschkeetal.2023, author = {Kim, MyoungHwee and Lin, Chiao-I and Henschke, Jakob and Quarmby, Andrew James and Engel, Tilman and Cassel, Michael}, title = {Effects of exercise treatment on functional outcome parameters in mid-portion achilles tendinopathy}, series = {Frontiers in Sports and Active Living}, volume = {5}, journal = {Frontiers in Sports and Active Living}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2624-9367}, doi = {10.3389/fspor.2023.1144484}, pages = {12}, year = {2023}, abstract = {Exercise interventions are evident in the treatment of mid-portion Achilles tendinopathy (AT). However, there is still a lack of knowledge concerning the effect of different exercise treatments on improving a specific function (e.g., strength) in this population. Thus, this study aimed to systematically review the effect of exercise treatments on different functional outcomes in mid-portion AT. An electronic database of Pubmed, Web of Science, and Cochrane Central Register of Controlled Trials were searched from inception to 21 February 2023. Studies that investigated changes in plantar flexor function with exercise treatments were considered in mid-portion AT. Only randomized controlled trials (RCTs) and clinical controlled trials (CCTs) were included. Functional outcomes were classified by kinetic (e.g., strength), kinematic [e.g., ankle range of motion (ROM)], and sensorimotor (e.g., balance index) parameters. The types of exercise treatments were classified into eccentric, concentric, and combined (eccentric plus concentric) training modes. Quality assessment was appraised using the Physiotherapy Evidence Database scale for RCTs, and the Joanna Briggs Institute scale for CCTs. The search yielded 2,260 records, and a total of ten studies were included. Due to the heterogeneity of the included studies, a qualitative synthesis was performed. Eccentric training led to improvements in power outcomes (e.g., height of countermovement jump), and in strength outcomes (e.g., peak torque). Concentric training regimens showed moderate enhanced power outcomes. Moreover, one high-quality study showed an improvement in the balance index by eccentric training, whereas the application of concentric training did not. Combined training modalities did not lead to improvements in strength and power outcomes. Plantarflexion and dorsiflexion ROM measures did not show relevant changes by the exercise treatments. In conclusion, eccentric training is evident in improving strength outcomes in AT patients. Moreover, it shows moderate evidence improvements in power and the sensorimotor parameter "balance index". Concentric training presents moderate evidence in the power outcomes and can therefore be considered as an alternative to improve this function. Kinematic analysis of plantarflexion and dorsiflexion ROM might not be useful in AT people. This study expands the knowledge what types of exercise regimes should be considered to improve the functional outcomes in AT.}, language = {en} } @article{KuehneJeglinskiMende2023, author = {K{\"u}hne, Katharina and Jeglinski-Mende, Melinda A.}, title = {Refraining from interaction can decrease fear of physical closeness during COVID-19}, series = {Scientific reports}, volume = {13}, journal = {Scientific reports}, number = {1}, publisher = {Nature portfolio}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-023-34667-x}, pages = {12}, year = {2023}, abstract = {Perception of peripersonal space (PPS) and interpersonal distance (IPD) has been shown to be modified by external factors such as perceived danger, the use of tools, and social factors. Especially in times of social distancing in the context of the COVID-19 pandemic, it is vital to study factors that modify PPS and IPD. The present work addresses the question of whether wearing a face mask as a protection tool and social interaction impact the perception of IPD. We tested estimated IPD in pictures at three distances: 50 cm, 90 cm, and 150 cm in both social interaction (shaking hands) and without interaction and when the two people in the pictures wore a face mask or not. Data from 60 subjects were analyzed in a linear mixed model (on both difference in distance estimation to the depicted distance and in absolute distance estimation) and in a 3 (distance: 50, 90, 150) x 2 (interaction: no interaction, shake hands), x 2 face mask (no mask, mask) rmANOVA on distance estimation difference. All analyses showed that at a distance of 50 and 90 cm, participants generally underestimated the IPD while at an IPD of 150 cm, participants overestimated the distance. This could be grounded in perceived danger and avoidance behavior at closer distances, while the wider distance between persons was not perceived as dangerous. Our findings at an IPD of 90 cm show that social interaction has the largest effect at the border of our PPS, while the face mask did not affect social interaction at either distance. In addition, the ANOVA results indicate that when no social interaction was displayed, participants felt less unsafe when depicted persons wore a face mask at distances of 90 and 150 cm. This shows that participants are on the one hand aware of the given safety measures and internalized them; on the other hand, that refraining from physical social interaction helps to get close to other persons.}, language = {en} } @article{QuarmbyKhajooeiKurtzetal.2023, author = {Quarmby, Andrew James and Khajooei, Mina and Kurtz, Philip and Henschke, Jakob and Kim, MyoungHwee and Mayer, Frank and Engel, Tilman}, title = {Unexpected running perturbations}, series = {Frontiers in sports and active living}, volume = {5}, journal = {Frontiers in sports and active living}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2624-9367}, doi = {10.3389/fspor.2023.1129058}, pages = {14}, year = {2023}, abstract = {Introduction Balance is vital for human health and experiments have been conducted to measure the mechanisms of postural control, for example studying reflex responses to simulated perturbations. Such studies are frequent in walking but less common in running, and an understanding of reflex responses to trip-like disturbances could enhance our understanding of human gait and improve approaches to training and rehabilitation. Therefore, the primary aim of this study was to investigate the technical validity and reliability of a treadmill running protocol with perturbations. A further exploratory aim was to evaluate the associated neuromuscular reflex responses to the perturbations, in the lower limbs. Methods Twelve healthy participants completed a running protocol (9 km/h) test-retest (2 weeks apart), whereby 30 unilateral perturbations were executed via the treadmill belts (presets:2.0 m/s amplitude;150 ms delay (post-heel contact);100ms duration). Validity of the perturbations was assessed via mean +/- SD comparison, percentage error calculation between the preset and recorded perturbation characteristics (PE\%), and coefficient of variation (CV\%). Test-retest reliability (TRV\%) and Bland-Altman analysis (BLA; bias +/- 1.96 * SD) was calculated for reliability. To measure reflex activity, electromyography (EMG) was applied in both legs. EMG amplitudes (root mean square normalized to unperturbed strides) and latencies [ms] were analysed descriptively. Results Left-side perturbation amplitude was 1.9 +/- 0.1 m/s, delay 105 +/- 2 ms, and duration 78 +/- 1 ms. Right-side perturbation amplitude was 1.9 +/- 0.1 m/s, delay 118 +/- 2 ms, duration 78 +/- 1 ms. PE\% ranged from 5-30\% for the recorded perturbations. CV\% of the perturbations ranged from 19.5-76.8\%. TRV\% for the perturbations was 6.4-16.6\%. BLA for the left was amplitude: 0.0 +/- 0.3m/s, delay: 0 +/- 17 ms, duration: 2 +/- 13 ms, and for the right was amplitude: 0.1 +/- 0.7, delay: 4 +/- 40 ms, duration: 1 +/- 35 ms. EMG amplitudes ranged from 175 +/- 141\%-454 +/- 359\% in both limbs. Latencies were 109 +/- 12-116 +/- 23 ms in the tibialis anterior, and 128 +/- 49-157 +/- 20 ms in the biceps femoris. Discussion Generally, this study indicated sufficient validity and reliability of the current setup considering the technical challenges and limitations, although the reliability of the right-sided perturbations could be questioned. The protocol provoked reflex responses in the lower extremities, especially in the leading leg. Acute neuromusculoskeletal adjustments to the perturbations could be studied and compared in clinical and healthy running populations, and the protocol could be utilised to monitor chronic adaptations to interventions over time.}, language = {en} } @article{SchaeferBittmann2023, author = {Schaefer, Laura and Bittmann, Frank}, title = {Case report}, series = {Frontiers in medicine}, volume = {9}, journal = {Frontiers in medicine}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2296-858X}, doi = {10.3389/fmed.2022.879971}, pages = {10}, year = {2023}, abstract = {The increasing prevalence of Long COVID is an imminent public health disaster, and established approaches have not provided adequate diagnostics or treatments. Recently, anesthetic blockade of the stellate ganglion was reported to improve Long COVID symptoms in a small case series, purportedly by "rebooting" the autonomic nervous system. Here, we present a novel diagnostic approach based on the Adaptive Force (AF), and report sustained positive outcome for one severely affected Long COVID patient using individualized pulsed electromagnetic field (PEMF) at the area C7/T1. AF reflects the capacity of the neuromuscular system to adapt adequately to external forces in an isometric holding manner. In case, maximal isometric AF (AFiso(max)) is exceeded, the muscle merges into eccentric muscle action. Thereby, the force usually increases further until maximal AF (AFmax) is reached. In case adaptation is optimal, AFiso(max) is similar to 99-100\% of AFmax. This holding capacity (AFiso(max)) was found to be vulnerable to disruption by unpleasant stimulus and, hence, was regarded as functional parameter. AF was assessed by an objectified manual muscle test using a handheld device. Prior to treatment, AFiso(max) was considerably lower than AFmax for hip flexors (62 N = similar to 28\% AFmax) and elbow flexors (71 N = similar to 44\% AFmax); i.e., maximal holding capacity was significantly reduced, indicating dysfunctional motor control. We tested PEMF at C7/T1, identified a frequency that improved neuromuscular function, and applied it for similar to 15 min. Immediately post-treatment, AFiso(max) increased to similar to 210 N (similar to 100\% AFmax) at hip and 184 N (similar to 100\% AFmax) at elbow. Subjective Long COVID symptoms resolved the following day. At 4 weeks post-treatment, maximal holding capacity was still on a similarly high level as for immediately post-treatment (similar to 100\% AFmax) and patient was symptom-free. At 6 months the patient's Long COVID symptoms have not returned. This case report suggests (1) AF could be a promising diagnostic for post-infectious illness, (2) AF can be used to test effective treatments for post-infectious illness, and (3) individualized PEMF may resolve post-infectious symptoms.}, language = {en} } @article{QuarmbyMoennigMugeleetal.2023, author = {Quarmby, Andrew James and M{\"o}nnig, Jamal and Mugele, Hendrik and Henschke, Jakob and Kim, MyoungHwee and Cassel, Michael and Engel, Tilman}, title = {Biomechanics and lower limb function are altered in athletes and runners with achilles tendinopathy compared with healthy controls: A systematic review}, series = {Frontiers in Sports and Active Living}, journal = {Frontiers in Sports and Active Living}, publisher = {Frontiers}, address = {Lausanne, Schweiz}, issn = {2624-9367}, doi = {10.3389/fspor.2022.1012471}, pages = {20}, year = {2023}, abstract = {Achilles tendinopathy (AT) is a debilitating injury in athletes, especially for those engaged in repetitive stretch-shortening cycle activities. Clinical risk factors are numerous, but it has been suggested that altered biomechanics might be associated with AT. No systematic review has been conducted investigating these biomechanical alterations in specifically athletic populations. Therefore, the aim of this systematic review was to compare the lower-limb biomechanics of athletes with AT to athletically matched asymptomatic controls. Databases were searched for relevant studies investigating biomechanics during gait activities and other motor tasks such as hopping, isolated strength tasks, and reflex responses. Inclusion criteria for studies were an AT diagnosis in at least one group, cross-sectional or prospective data, at least one outcome comparing biomechanical data between an AT and healthy group, and athletic populations. Studies were excluded if patients had Achilles tendon rupture/surgery, participants reported injuries other than AT, and when only within-subject data was available.. Effect sizes (Cohen's d) with 95\% confidence intervals were calculated for relevant outcomes. The initial search yielded 4,442 studies. After screening, twenty studies (775 total participants) were synthesised, reporting on a wide range of biomechanical outcomes. Females were under-represented and patients in the AT group were three years older on average. Biomechanical alterations were identified in some studies during running, hopping, jumping, strength tasks and reflex activity. Equally, several biomechanical variables studied were not associated with AT in included studies, indicating a conflicting picture. Kinematics in AT patients appeared to be altered in the lower limb, potentially indicating a pattern of "medial collapse". Muscular activity of the calf and hips was different between groups, whereby AT patients exhibited greater calf electromyographic amplitudes despite lower plantar flexor strength. Overall, dynamic maximal strength of the plantar flexors, and isometric strength of the hips might be reduced in the AT group. This systematic review reports on several biomechanical alterations in athletes with AT. With further research, these factors could potentially form treatment targets for clinicians, although clinical approaches should take other contributing health factors into account. The studies included were of low quality, and currently no solid conclusions can be drawn.}, language = {en} } @article{SchaeferCarnariusDechetal.2023, author = {Schaefer, Laura and Carnarius, Friederike and Dech, Silas and Bittmann, Frank}, title = {Repeated measurements of Adaptive Force}, series = {Frontiers in physiology}, volume = {14}, journal = {Frontiers in physiology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-042X}, doi = {10.3389/fphys.2023.1020954}, pages = {19}, year = {2023}, abstract = {The Adaptive Force (AF) reflects the neuromuscular capacity to adapt to external loads during holding muscle actions and is similar to motions in real life and sports. The maximal isometric AF (AFisoₘₐₓ) was considered to be the most relevant parameter and was assumed to have major importance regarding injury mechanisms and the development of musculoskeletal pain. The aim of this study was to investigate the behavior of different torque parameters over the course of 30 repeated maximal AF trials. In addition, maximal holding vs. maximal pushing isometric muscle actions were compared. A side consideration was the behavior of torques in the course of repeated AF actions when comparing strength and endurance athletes. The elbow flexors of n = 12 males (six strength/six endurance athletes, non-professionals) were measured 30 times (120 s rest) using a pneumatic device. Maximal voluntary isometric contraction (MVIC) was measured pre and post. MVIC, AFisoₘₐₓ, and AFₘₐₓ (maximal torque of one AF measurement) were evaluated regarding different considerations and statistical tests. AFₘₐₓ and AFisoₘₐₓ declined in the course of 30 trials [slope regression (mean ± standard deviation): AFₘₐₓ = -0.323 ± 0.263; AFisoₘₐₓ = -0.45 ± 0.45]. The decline from start to end amounted to -12.8\% ± 8.3\% (p < 0.001) for AFₘₐₓ and -25.41\% ± 26.40\% (p < 0.001) for AFisoₘₐₓ. AF parameters declined more in strength vs. endurance athletes. Thereby, strength athletes showed a rather stable decline for AFmax and a plateau formation for AFisoₘₐₓ after 15 trials. In contrast, endurance athletes reduced their AFₘₐₓ, especially after the first five trials, and remained on a rather similar level for AFisomax. The maximum of AFisoₘₐₓ of all 30 trials amounted 67.67\% ± 13.60\% of MVIC (p < 0.001, n = 12), supporting the hypothesis of two types of isometric muscle action (holding vs. pushing). The findings provided the first data on the behavior of torque parameters after repeated isometric-eccentric actions and revealed further insights into neuromuscular control strategies. Additionally, they highlight the importance of investigating AF parameters in athletes based on the different behaviors compared to MVIC. This is assumed to be especially relevant regarding injury mechanisms.}, language = {en} }