Publications by authors named "Nauta J"

Background/aim: The participation of individuals with physical impairment in sports has numerous benefits, yet there is also the risk of sustaining sport-related injuries or illnesses. Therefore, prevention programmes of these problems are needed to ensure that individuals can maintain a healthy, active lifestyle. Currently, very few prevention interventions are accessible for these athletes.

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Background: Although the prescription of physical activity in clinical care has been advocated worldwide, in the Netherlands, "Exercise is Medicine" (E = M) is not yet routinely implemented in clinical care.

Methods: A set of implementation strategies was pilot implemented to test its feasibility for use in routine care by clinicians in 2 departments of a university medical center. An extensive learning process evaluation was performed, using structured mixed methods methodology, in accordance with the Reach, Effect, Adoption, Implementation, and Maintenance framework.

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This study aimed to evaluate the children's usage and their physical activity levels at playgrounds with (N = 4) and without (N = 4) organized sports activities, following a quasi-experimental study design. Direct observations were used to assess the playground usage and estimate the playground users' age category, sex, and physical activity intensity level. The results indicated that playgrounds with sports activities were associated with 53% more users at the time of the activities.

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We present a compact closed-loop recycling system for noble and inert gases. It has been developed for an extreme-ultraviolet (XUV) frequency comb based on high-harmonic generation at 100 MHz repetition rate. The system collects gas injected at several bars of backing pressure through a micrometer-sized nozzle into the laser-interaction region with a differential pumping system comprising turbomolecular pumps, and subsequently compresses the gas to a pressure of up to 200 bar.

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Background: To better understand physical activity behavior and its health benefits in people living with health conditions, we studied people with and without 20 different self-reported health conditions with regard to (1) their physical activity levels, (2) factors correlated with these physical activity levels, and (3) the association between physical activity and all-cause mortality.

Methods: We used a subsample (n = 88,659) of the Lifelines cohort study from the Netherlands. For people living with and without 20 different self-reported health conditions, we studied the aforementioned factors in relation to physical activity.

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Objective: This process evaluation aimed to gain insight into the implementation of the VolleyVeilig Youth program by Dutch volleyball clubs within the context of an effectiveness trial.

Methods: We applied the UK Medical Research Council framework for process evaluations and assessed the context, implementation and mechanisms of impact. Trainers participating in the effectiveness trial were asked to complete a questionnaire at the end of the study.

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According to recent regulatory guidance, clinical trial objectives should be translated into estimands, i.e., precise descriptions of that what is to be estimated.

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Article Synopsis
  • - This study investigates the prevalence, incidence, and severity of sport-related health problems in athletes with physical impairments in the Netherlands over one sports season.
  • - 99 athletes participated in a 40-week health monitoring period, reporting a total of 368 health issues, including 258 injuries and 110 illnesses, with an average weekly prevalence of 48.0% for health problems.
  • - Results highlight significant differences in injury severity among various impairment categories and competition levels, suggesting the need for tailored injury prevention strategies based on these factors.
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Introduction: This paper summarizes the safety and immunogenicity data of Influvac Tetra across all age groups starting from 6 months of age, obtained during its clinical development program.

Areas Covered: The article covers the clinical development program of Influvac Tetra based on five registration studies that included different age groups, different comparators, and participants from Europe and Asia. Safety and immunogenicity were assessed in all studies and in one study, the efficacy of Influvac Tetra was assessed.

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Structurally complex habitats, such as mangrove forests, allow for rich assemblages of species that benefit from the provided space, volume and substrate. Changes in habitat complexity can affect species abundance, diversity and resilience. In this study, we explored the effects of habitat complexity on food web networks in four developmental stages of mangrove forests with differing structural complexities: climax > degrading > colonizing > bare, by analyzing food web structure, stable isotopes and habitat complexity.

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Einstein's general theory of relativity from 1915 remains the most successful description of gravitation. From the 1919 solar eclipse to the observation of gravitational waves, the theory has passed many crucial experimental tests. However, the evolving concepts of dark matter and dark energy illustrate that there is much to be learned about the gravitating content of the universe.

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Extensive agricultural activities have been shown to degrade soils, promoting research into improving soil quality. One such method is to increase the amount of organic matter in the soil, and domestic organic residues (DOR) are commonly used for this purpose. The environmental impact of DOR-derived products, from production to agricultural application, remains unclear in current research.

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Context: Participation in sports is associated with a risk of sports-related health problems. For athletes with an impairment, sports-related health problems further burden an already restricted lifestyle, underlining the importance of prevention strategies in para-sports.

Objective: To provide a comprehensive overview with quality assessment of the literature on sports-related health problems, their etiology, and available preventive measures in para-sports following the steps of the Sequence of Prevention.

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Article Synopsis
  • A dedicated lifestyle front office (LFO) can enhance patient-centered lifestyle care by connecting healthcare with community-based initiatives, crucial for preventing noncommunicable diseases.
  • The LOFIT study will conduct two randomized controlled trials in the Netherlands focused on patients with (cardio)vascular and musculoskeletal disorders, comparing an intervention group receiving lifestyle coaching to a usual care control group.
  • The primary outcome will measure health risk and lifestyle factors through a composite score, while secondary outcomes will assess various health markers and patient behaviors.
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Objectives: To establish the effectiveness of the 'VolleyVeilig' programme on reducing injury rate, injury burden and injury severity in youth volleyball players.

Methods: We conducted a quasi-experimental prospective study over one season of youth volleyball. After randomisation by competition region, we instructed 31 control teams (236 children, average age 12.

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We present a compact velocity-map imaging (VMI) spectrometer for photoelectron imaging at 100 MHz repetition rate. Ultrashort pulses from a near-infrared frequency comb laser are amplified in a polarization-insensitive passive femtosecond enhancement cavity. In the focus, multi-photon ionization (MPI) of gas-phase atoms is studied tomographically by rotating the laser polarization.

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Background: Establishing a large study network to conduct influenza vaccine effectiveness (IVE) studies while collecting appropriate variables to account for potential bias is important; the most relevant variables should be prioritized. We explored the impact of potential confounders on IVE in the DRIVE multi-country network of sites conducting test-negative design (TND) studies.

Methods: We constructed a directed acyclic graph (DAG) to map the relationship between influenza vaccination, medically attended influenza infection, confounders, and other variables.

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Background And Objectives: In 2014, the European Medicines Agency (EMA) set out requirements for an enhanced safety surveillance for seasonal influenza vaccines. This paper presents data from the yearly Enhanced Passive Safety Surveillance (EPSS) implemented for Influvac® since season 2014/15 and continued for Influvac® Tetra from season 2018/19 onwards.

Methods: In seven consecutive seasons, an EPSS, aiming for at least 1,000 vaccinees (additional target of 100 vaccinees per five predefined age groups), was conducted in Germany, where market characteristics were expected to allow for a quick generation of representative data.

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Article Synopsis
  • Effective pandemic preparedness requires a strong, sustainable infrastructure that includes systems for disease surveillance and vaccine monitoring using real-world data.
  • Collaboration between the public and private sectors is essential, as demonstrated by initiatives like the DRIVE project that successfully established frameworks for evaluating vaccine effectiveness.
  • Ongoing discussions are needed to address the benefits and concerns of Public-Private Partnerships in vaccine monitoring, with a focus on clarifying roles and understanding hesitancy towards these collaborations.
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Aims: Improvement in left ventricular ejection fraction (LVEF) after up-titration of guideline-directed medical therapy (GDMT) has been well described in heart failure (HF) patients. Less is known about the prevalence and clinical course of right ventricular dysfunction (RVD) in patients with new-onset HF.

Methods And Results: From 2012 to 2018, 625 patients with a recent (<3 months) diagnosis of HF were referred to a specialized nurse-led HF clinic for protocolized up-titration of GDMT.

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Background: There is much evidence to implement physical activity interventions for medical reasons in healthcare settings. However, the prescription of physical activity as a treatment, referring to as 'Exercise is Medicine' (E = M) is currently mostly absent in routine hospital care in The Netherlands. To support E = M prescription by clinicians in hospitals, this study aimed: (1) to develop an E = M-tool for physical activity advice and referrals to facilitate the E = M prescription in hospital settings; and (2) to provide an E = M decision guide on key decisions for implementation to prepare for E = M prescription in hospital care.

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Increased fragmentation caused by habitat loss represents a major threat to the persistence of animal populations. How fragmentation affects populations depends on the rate at which individuals move between spatially separated patches. Whereas negative effects of habitat loss on biodiversity are well known, the effects of fragmentation on population dynamics and ecosystem stability remain less well understood.

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Background: Children are an important target group for influenza vaccination, but few studies have prospectively evaluated influenza vaccine efficacy (VE) in children under 3 years of age. This was a randomized Phase III trial to assess the efficacy, immunogenicity, and safety of an inactivated quadrivalent influenza vaccine (QIV) in young children (EudraCT: 2016-004904-74).

Methods: Influenza-naïve children aged 6-35 months were randomized during three influenza seasons to receive vaccination with QIV or a non-influenza control vaccine.

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Objectives: Despite the many proven advantages of a physically active lifestyle in patient populations, prescription of exercise is currently not widely implemented in routine clinical practice. The aims of this study were twofold: (1) to assess perceptions of clinicians on the current practice of exercise is medicine (E=M) prescription in two Dutch university medical centres and (2) to determine their perceived barriers and facilitators for the implementation of E=M in routine clinical care in Dutch university medical centres.

Design: A mixed methodologies study, using both online questionnaires and semi-structured interviews.

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Left atrial (LA) structure and function in heart failure with reduced (HFrEF) versus preserved ejection fraction (HFpEF) is only established in small studies. Therefore, we conducted a systematic review of LA structure and function in order to find differences between patients with HFrEF and HFpEF. English literature on LA structure and function using echocardiography was reviewed to calculate pooled prevalence and weighted mean differences (WMD).

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