Publications by authors named "Birgit Larsen"

Use of digital patient-reported outcomes is being introduced in care of chronic conditions, including Inflammatory Bowel Disease. The aim is to supplement face-to-face follow-up sessions through symptom screening, and to inform follow-up through questions about mental health and quality of life. However, little is known about who is using this as intended.

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Background: Use of digital health services, such as digital patient-reported outcomes, depends on many different human factors as well as digital design solutions. One factor is clinicians' attitude towards the system, their reasoning behind the using system and their perceptions of patients' ability to engage with digital health systems. This study aimed to explore hospital clinicians' attitudes towards digital patient-reported outcomes used in the routine care and treatment of inflammatory bowel disease, and to explore the potential role of clinicians' attitudes in influencing patients' use of digital patient-reported outcomes.

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Background: Avoidable appointments and increasing incidence of inflammatory bowel disease (IBD) call for alternative ways of organizing outpatient visits. In controlled studies, telemedicine including patient reported outcome (PRO) has shown to improve outcomes in IBD and reduce health care utilization. However, we lack studies of telemedicine implemented in everyday practice.

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Background: Digital patient reported outcomes are used increasingly in daily care and treatment of inflammatory bowel disease. Their purpose includes increased focus on patient wellbeing, reduction in avoidable follow-up consultations and increased patient self-management. However, implementation issues occur and studies indicate patients may have concerns, particularly regarding having fewer face-to-face consultations.

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Objective: Physical activity reduces the risk of pregnancy-related complications. However, pregnant women often reduce their physical activity levels and do not follow the WHO's physical activity recommendations during pregnancy. To support pregnant women in monitoring physical activity, the self-administered Pregnancy Physical Activity Questionnaire was developed in the US.

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Giardia and Cryptosporidium infections are common in cats, but knowledge is limited about their clinical importance, risk factors, and the role of cats as a reservoir for human infections. Here, we collected faeces and questionnaire data from 284 cats from shelters and veterinary clinics in the Copenhagen Metropolitan Region (= study population). Additionally, 33 samples were analysed separately from catteries with gastrointestinal clinical signs (= cases).

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The purpose of this study was to determine the extent to which measurement latency has significance for the accuracy of heart rate (HR) measured by wearable devices during physical activities. Thirty participants (15 female) aged 18-50 years (mean 24.8, 6.

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Accurate measures of heart rate (HR) during rehabilitation and sporting activities are important for precise exercise prescription to maintain or increase capacity. Wrist-worn activity monitors utilizing photoplethysmography technology (PPG) to configure HR show discrepant findings regarding validity depending on the type and intensity of exercises measured, and no previous study has yet investigated the accuracy during running at speeds exceeding 9.6 km/h.

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Background: Assessment of ankle joint movement in a weight bearing position has important clinical implications. The lunge ankle dorsiflexion measurement device (LAD) has been developed with the aim of facilitating ease of and standardisation of the measurement of ankle joint movement. The literature lacks studies evaluating the reliability of weight bearing measurements of the ankle joint in study groups with ankle disabilities.

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Background: In current preoperative fasting guidelines, coffee with milk is still regarded by many as solid food. Evidence on the consequences for gastric volume of adding milk to coffee 2 h before anaesthesia is still weak.

Objectives: The aim of this study was to compare the gastric volume by MRI in healthy volunteers after drinking coffee with and without added milk.

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After stroke, hemiparesis is a common problem resulting in very individual needs for walking assistance. Often patients suffer from foot drop, i.e.

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Objective: To evaluate patients' perceptions of the benefits and problems associated with using the ActiGait implanted drop-foot stimulator.

Method: Thirteen participants who had suffered a stroke at least 6 months prior to recruitment, had a drop-foot that affected walking and had taken part in a trial in which an ActiGait drop-foot stimulator had been implanted, completed a postal questionnaire.

Results: Users agreed that the ActiGait had a positive effect on walking; they used it regularly and had little difficulty with putting it on and taking it off.

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Introduction: The aim of this study was to answer the questions: Which kind of positioning injuries occurred in anaesthetized orthopaedic patients undergoing spine surgery who were prone-positioned for more than two hours? What was the incidence of positioning injuries? Which patients were at particular risk of developing positioning-related injuries?

Material And Methods: Follow-up study comprising 299 patients. A patient record followed the patient from the day of surgery until discharge. Selected pre-disposing factors related to positioning injuries as well as positioning-related injuries were registered.

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Objective: To evaluate a selective implantable drop foot stimulator (ActiGait) in terms of effect on walking and safety.

Design: A phase II trial in which a consecutive sample of participants acted as their own controls.

Subjects: People who had suffered a stroke at least 6 months prior to recruitment and had a drop-foot that affected walking were recruited from 3 rehabilitation centres in Denmark.

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The influence of pedaling frequency and crank load on the sensitivity of the soleus short latency stretch reflex (SLR) was examined in nine healthy subjects during pedaling by the use of a custom-built robotic actuator. The SLR decreased successively in downstroke when pedaling frequency increased from 20 to 40 and 60 revolutions per minute at a constant crank load (p = .005).

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The main aims of this study were 1) to investigate possible phase-, speed-, and task-dependent changes in the quadriceps H-reflex during pedaling, and to achieve this, 2) to develop an optimized H-reflex recording and processing procedure for recording of quadriceps H-reflexes during movement. It was hypothesized that the behavior of the quadriceps H-reflex concerning phase, speed, and task dependency corresponds to the behavior of the soleus H-reflex during rhythmical leg movements. The applied H-reflex procedure appeared to be reliable for obtaining the quadriceps H-reflex modulation during leg movement.

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Previously the modulation of the quadriceps H-reflex has only been investigated in the initial part of the gait cycle, and it was suggested that the quadriceps H-reflex modulates with relative high reflex gain at heel contact and decreases during the subsequent part of stance (Dietz et al. 1990b). The objectives of the present study was to elaborate on the previous results by increasing the measurement resolution around heel contact and include additional measures in order to relate the H-reflex modulation to the mechanical function of the knee extensors throughout the gait cycle.

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The behaviour of the soleus H-reflex is considered to be motor task-dependent. However, the speed of movements as well as the motor recruitment level is altered when motor tasks are changed. Therefore it is ambiguous to what extent the motor task-dependent changes found between walking and running, for example, are simply due to changes in these two parameters.

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In comparison to the H-reflex, the task dependency of the human stretch reflex during locomotive and postural tasks has not received a great deal of attention in the literature. The few studies on reflex task dependency that have been performed to date have concentrated on either the group Ia mediated H-reflex or the short latency stretch reflex. In the present study the medium latency component of a mechanically evoked stretch reflex is investigated during walking, pedalling, and sitting.

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