The purpose of this study is to create an accurate experimental database for the passive (in vitro)freedom-of-motion characteristics of the human knee joint on a subject to subject basis, suitable for the verification and enhancement of mathematical knee-joint models. Knee-joint specimens in a six degree-of-freedom motion rig are moved through flexion under several combinations of external loads, including tibial torques, axial forces and AP-forces. Euler rotation angles and translation vectors, describing the relative, spatial motions of the joint are measured using an accurate Roentgen Stereo Photogrammetric system. Conceptually the joint is considered as a two degrees-of-freedom of motion mechanism (flexion-tibial rotation), whereby the limits of internal and external tibial rotation are defined at torques of ± 3 Nm. The motion pathways along these limits are denned as the envelopes of passive knee joint motion. It is found that these envelope pathways are consistent and hardly influenced by additional axial forces up to 300 N and AP-forces of 30 N. Within the envelope of motion, however, the motion patterns are highly susceptible to small changes in the external load configuration. It is shown that the external tibial rotation during extension ('screw-home mechanism') is not an obligatory effect of the passive joint characteristics, but a direct result of the external loads. Anatomical differences notwithstanding, the inter-individual discrepancies in the motion patterns of the four specimens tested, showed to be relatively small in a qualitative sense. Quantitative differences can be explained by small differences in the alignment of the coordinate systems relative to the joint anatomy and by differences in rotatory laxity.
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Knee joint instability is frequently reported by patients with knee osteoarthritis (KOA). Objective metrics to assess knee joint instability are lacking, making it difficult to target therapies aiming to improve stability. Therefore, the aim of this study was to compare responses in neuromechanics to perturbations during gait in patients with self-reported knee joint instability (KOA-I) versus patients reporting stable knees (KOA-S) and healthy control subjects.Forty patients (20 KOA-I and 20 KOA-S) and 20 healthy controls were measured during perturbed treadmill walking. Knee joint angles and muscle activation patterns were compared using statistical parametric mapping and discrete gait parameters. Furthermore, subgroups (moderate versus severe KOA) based on Kellgren and Lawrence classification were evaluated.Patients with KOA-I generally had greater knee flexion angles compared to controls during terminal stance and during swing of perturbed gait. In response to deceleration perturbations the patients with moderate KOA-I increased their knee flexion angles during terminal stance and pre-swing. Knee muscle activation patterns were overall similar between the groups. In response to sway medial perturbations the patients with severe KOA-I increased the co-contraction of the quadriceps versus hamstrings muscles during terminal stance.Patients with KOA-I respond to different gait perturbations by increasing knee flexion angles, co-contraction of muscles or both during terminal stance. These alterations in neuromechanics could assist in the assessment of knee joint instability in patients, to provide treatment options accordingly. Furthermore, longitudinal studies are needed to investigate the consequences of altered neuromechanics due to knee joint instability on the development of KOA.
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Aan de performance van internationale joint ventures (IJV’s) is veel aandacht besteed. Voor een goede performance is wederzijds, persoonlijk vertrouwen tussen de partners van de alliantie als één van de belangrijkste factoren onderkend. In dit artikel wordt de ontwikkeling van persoonlijk vertrouwen tussen managers van IJV-partners over de tijd bestudeerd. Op basis van de resultaten van vier casestudies presenteren we een procesmodel van persoonlijk vertrouwen. De inzichten die aan dit model ontleend kunnen worden, dienen als leidraad voor de ontwikkeling van succesvolle allianties.
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The transition towards an economy of wellbeing is complex, systemic, dynamic and uncertain. Individuals and organizations struggle to connect with and embrace their changing context. They need to create a mindset for the emergence of a culture of economic well-being. This requires a paradigm shift in the way reality is constructed. This emergence begins with the mindset of each individual, starting bottom-up. A mindset of economic well-being is built using agency, freedom, and responsibility to understand personal values, the multi-identity self, the mental models, and the individual context. A culture is created by waving individual mindsets together and allowing shared values, and new stories for their joint context to emerge. It is from this place of connection with the self and the other, that individuals' intrinsic motivation to act is found to engage in the transitions towards an economy of well-being. This project explores this theoretical framework further. Businesses play a key role in the transition toward an economy of well-being; they are instrumental in generating multiple types of value and redefining growth. They are key in the creation of the resilient world needed to respond to the complex and uncertain of our era. Varta-Valorisatielab, De-Kleine-Aarde, and Het Groene Brein are frontrunner organizations that understand their impact and influence. They are making bold strategic choices to lead their organizations towards an economy of well-being. Unfortunately, they often experience resistance from stakeholders. To address this resistance, the consortium in the proposal seeks to answer the research question: How can individuals who connect with their multi-identity-self, (via personal values, mental models, and personal context) develop a mindset of well-being that enables them to better connect with their stakeholders (the other) and together address the transitional needs of their collective context for the emergence of a culture of the economy of wellbeing?
Students in Higher Music Education (HME) are not facilitated to develop both their artistic and academic musical competences. Conservatoires (professional education, or ‘HBO’) traditionally foster the development of musical craftsmanship, while university musicology departments (academic education, or ‘WO’) promote broader perspectives on music’s place in society. All the while, music professionals are increasingly required to combine musical and scholarly knowledge. Indeed, musicianship is more than performance, and musicology more than reflection—a robust musical practice requires people who are versed in both domains. It’s time our education mirrors this blended profession. This proposal entails collaborative projects between a conservatory and a university in two cities where musical performance and musicology equally thrive: Amsterdam (Conservatory and University of Amsterdam) and Utrecht (HKU Utrechts Conservatorium and Utrecht University). Each project will pilot a joint program of study, combining existing modules with newly developed ones. The feasibility of joint degrees will be explored: a combined bachelor’s degree in Amsterdam; and a combined master’s degree in Utrecht. The full innovation process will be translated to a transferable infrastructural model. For 125 students it will fuse praxis-based musical knowledge and skills, practice-led research and academic training. Beyond this, the partners will also use the Comenius funds as a springboard for collaboration between the two cities to enrich their respective BA and MA programs. In the end, the programme will diversify the educational possibilities for students of music in the Netherlands, and thereby increase their professional opportunities in today’s job market.
Chronische gewrichtsaandoeningen zijn veelvoorkomende aandoeningen waarmee patiënten bij de fysiotherapeut of oefentherapeut komen. Aandoeningen zoals artrose en reuma veroorzaken problemen in het dagelijks functioneren vanwege pijn en verminderde mobiliteit. Genezing is vaak niet mogelijk, maar het bevorderen van zelfmanagement kan verergering voorkomen. Oefentherapeuten en fysiotherapeuten spelen een centrale rol in het ondersteunen van zelfmanagement bij patiënten met gewrichtsaandoeningen. De inzet van online toepassingen, waaronder mobiele applicaties, en online platforms, die gericht zijn op het bevorderen van zelfmanagement (in dit voorstel gedefinieerd als Behavioral Intervention Technologies: BITs) kunnen patiënten met chronische gewrichtsaandoeningen ondersteunen. Echter, voor veel professionals is het onduidelijk hoe BITs kunnen worden ingezet om zelfmanagement te vergroten en hoe dit gecombineerd kan worden met fysieke begeleiding. Daarom onderzoeken we in dit tweejarige project de manier waarop oefen- en fysiotherapeuten coaching op zelfmanagement via BITs kunnen vormgeven. In werkpakket 1 brengen we met een review, observaties en een concept mapping in kaart welke elementen en randvoorwaarden van BITs belangrijk zijn voor het bevorderen van zelfmanagement. Zodra we inzicht hebben in deze elementen en randvoorwaarden wordt in co-creatie met stakeholders toegewerkt naar beroepsrollen en beroepscompetenties die voorwaardelijk zijn voor het gebruik van BITs. Met de input van deze onderzoeksactiviteiten ontwikkelen we samen met de doelgroep de AmSOS methodiek die professionals helpt bij het gebruik van BITs om zelfmanagement te bevorderen bij patiënten met chronische gewrichtsaandoeningen (WP2). Om te bepalen in hoeverre de methodiek bruikbaar is in de praktijk wordt in WP3 een haalbaarheidsstudie opgezet waarbij 25 eerstelijnsfysio- en/of oefentherapiepraktijken de AmSOS methodiek gaan gebruiken in de behandeling van patiënten met chronische gewrichtsaandoeningen. Omdat gewrichtsaandoeningen een substantieel onderdeel zijn van de curricula, maar tegelijkertijd weinig aandacht wordt besteed aan technologie en zelfmanagement, ontwikkelen we in WP4 een onderwijsmodule voor scholing van studenten en praktiserende oefen- en fysiotherapeuten.
