Papers by Eling D de Bruin

Translation, Cross-Cultural Adaptation and Reliability of the German Version of the Dizziness Handicap Inventory
Otology & Neurotology, 2009
To translate the Dizziness Handicap Inventory into German (DHI-G) and investigate reliability, as... more To translate the Dizziness Handicap Inventory into German (DHI-G) and investigate reliability, assess the association between selected items of the University of California Los Angeles Dizziness Questionnaire and the DHI-G, and compare the scores of patients and healthy participants. Cross-sectional design. Tertiary center for vertigo, dizziness, or balance disorders. One hundred forty-one patients with vertigo, dizziness, and unsteadiness associated with a vestibular disorder, with a mean age (standard deviation) of 51.5 (13.2) years, and 52 healthy individuals participated. Fourteen patients participated in the cognitive debriefing; 127 patients completed the questionnaires once or twice within 1 week. The DHI-G assesses disability caused by dizziness and unsteadiness; the items of the University of California Los Angeles Dizziness Questionnaire assess dizziness and impact on everyday activities. Internal consistency was estimated using Cronbach alpha, reproducibility by calculating Bland-Altman limits of agreement and intraclass correlation coefficients. Associations were estimated by Spearman correlation coefficients. Patients filled out the DHI-G without problem and found that their self-perceived disabilities were mostly included. Cronbach alpha values for the DHI-G and the functional, physical, and emotional subscales were 0.90, 0.80, 0.71, and 0.82, respectively. The limits of agreement were +/-12.4 points for the total scale (maximum, 100 points). Intraclass correlation coefficients ranged from 0.90 to 0.95. The DHI-G correlated moderately with the question assessing functional disability (0.56) and fairly with the questions quantifying dizziness (0.43, 0.35). The DHI-G discriminated significantly between healthy participants and patients. The DHI-G demonstrated good reliability and is recommended as a measure of disability in patients with dizziness and unsteadiness.

BMC Ear, Nose and Throat Disorders, 2010
Background: The Dizziness Handicap Inventory (DHI) is a validated, self-report questionnaire whic... more Background: The Dizziness Handicap Inventory (DHI) is a validated, self-report questionnaire which is widely used as an outcome measure. Previous studies supported the multidimensionality of the DHI, but not the original subscale structure. The objectives of this survey were to explore the dimensions of the Dizziness Handicap Inventory -German version, and to investigate the associations of the retained factors with items assessing functional disability and the Hospital Anxiety and Depression Scale (HADS). Secondly we aimed to explore the retained factors according to the International Classification of Functioning, Disability and Health (ICF). Methods: Patients were recruited from a tertiary centre for vertigo, dizziness or balance disorders. They filled in two questionnaires: (1) The DHI assesses precipitating physical factors associated with dizziness/unsteadiness and functional/emotional consequences of symptoms. The HADS assesses non-somatic symptoms of anxiety and depression. In addition, patients answered the third question of the University of California Los Angeles-Dizziness Questionnaire which covers the impact of dizziness and unsteadiness on everyday activities. Principal component analysis (PCA) was performed to explore the dimensions of the DHI. Associations were estimated by Spearman correlation coefficients. Results: One hundred ninety-four patients with dizziness or unsteadiness associated with a vestibular disorder, mean age (standard deviation) of 50.6 (13.6) years, participated. Based on eigenvalues greater one respectively the scree plot we analysed diverse factor solutions. The 3-factor solution seems to be reliable, clinically relevant and can partly be explained with the ICF. It explains 49.2% of the variance. Factor 1 comprises the effect of dizziness and unsteadiness on emotion and participation, factor 2 informs about specific activities or effort provoking dizziness and unsteadiness, and factor 3 focuses on self-perceived walking ability in relation to contextual factors. The first factor correlates moderately with disability and the HADS (values ≥0.6). The second factor is comparable with the original physical subscale of the DHI and factors retained in previous studies.
Foundations and Trends® in Human–Computer Interaction

Clinical Rehabilitation, 2007
Objective: To compare the effect of calcium/vitamin D supplements with a combination of calcium/v... more Objective: To compare the effect of calcium/vitamin D supplements with a combination of calcium/vitamin D supplements and exercise/protein on risk of falling and postural balance. Design: Randomized clinical trial. Setting: University hospital physiotherapy department. Subjects: Twenty-four independently living elderly females aged 65 years and older with osteopenia or osteoporosis, and mean total Hip T-score (SD) of -1.8 (0.8). Interventions: A three-month programme consisting of exercise/protein including training of muscular strength, co-ordination, balance and endurance. Calcium/ vitamin D was supplemented in all participants for a 12-month period. Outcome measures: Assessment took place prior to and following the months 3, 6, 9 and at the end of the study; primary dependent variables assessed were risk of falling (Berg Balance Test) and postural balance (forceplate). Secondary measures included body composition, strength, activity level, number of falls, bone mineral content, biochemical indices, nutritional status and general health. Results: Significant reductions of risk of falling (repeated measures ANOVA F=8.90, p=0.008), an increase in muscular strength (ANOVA F=3.0, p=0.03), and an increase in activity level (ANOVA F=3.38, p=0.02) were found in the experimental group as compared to the control group. Further on, there was 89% reduction of falls reported in the experimental group (experimental pre/post 8/1 falls; control group pre/post 5/6 falls). Conclusion: This study provides support for our intervention programme aimed at reducing the risk of falling in elderly participants diagnosed with osteopenia or osteoporosis. The data obtained from the pilot study allow the calculation of the actual sample size needed for a larger randomised trial.
BMC Musculoskeletal Disorders, 2008
The purpose of this study was to determine the reliability of a forceplate postural balance proto... more The purpose of this study was to determine the reliability of a forceplate postural balance protocol in a group of elderly fallers and non-fallers. The measurements were tested in single and dual-task conditions, with and without vision.

Gerontology, 2009
Background: Additional tasks that are assumed to disturb standing postural control can be divided... more Background: Additional tasks that are assumed to disturb standing postural control can be divided in added motor or added cognitive tasks. It is unknown, which type of task causes the most disturbances on postural control in elderly. Objective: The aim of this study was to determine whether the dual tasking disturbance of postural control in elderly is caused by vocal articulation or by limited attentional resources. Methods: 39 elderly (81 ± 7 years) were tested on a force platform in a two-legged standing position. Seven balance variables were assessed: maximum displacement and standard deviation amplitude in the medial-lateral (Max-ML, RMS-ML) and anterior-posterior (Max-AP, RMS-AP) direction, average speed of displacement (V) and the area of the 95 th percentile ellipse (AoE) and sway path (PL) per given time. The following task combinations were tested: no secondary task, repeating a number aloud (articulation), counting backwards aloud (articulation and attention), and counting backwards silently (attention). All tasks were tested with and without vision. Results: A factorial ANOVA revealed main effects of additional tasks in PL, Max-ML, RMS-ML, Max-AP, AoE and V. Bonferroni post-hoc analysis in a with vision situation showed significant difference between no task and counting backwards aloud task in balance variables
IT-FOR-ACTIVE-AGEING-NOW-V4-FINAL-AUTHOR-VERSION
Foundations and Trends® in Human–Computer Interaction, 2013
BMC Musculoskeletal Disorders, 2008
To determine whether there is a difference between patients with low back pain and healthy contro... more To determine whether there is a difference between patients with low back pain and healthy controls in a test battery score for movement control of the lumbar spine.
Machbarkeit und Wirkung des Plattformschaukel-Trainings für das Gleichgewicht gesunder älterer Menschen
physioscience, 2011

Active Ageing aims to foster a physically, mentally and socially active lifestyle as a person age... more Active Ageing aims to foster a physically, mentally and socially active lifestyle as a person ages. It is a complex, multi-faceted problem that involves a variety of different actors, such as policy makers, doctors, care givers, family members, friends and, of course, older adults. This review aims to understand the role of a new actor, which increasingly plays the role of enabler and facilitator, i.e., that of the technology provider. The review specifically focuses on Information Technology (IT), with a particular emphasis on software applications, and on how IT can prevent decline, compensate for lost capabilities, aid care, and enhance existing capabilities. The analysis confirms the crucial role of IT in Active Ageing, shows that Active Ageing requires a multidisciplinary approach, and identifies the need for better integration of hardware, software, the environment and the involved actors.
BMC Ear, Nose and Throat Disorders, 2012
Background: Dizziness and comorbid anxiety may cause severe disability of patients with vestibulo... more Background: Dizziness and comorbid anxiety may cause severe disability of patients with vestibulopathy, but can be addressed effectively with rehabilitation.

BMC Ear, Nose and Throat Disorders, 2010
Background: The Dizziness Handicap Inventory (DHI) is a validated, self-report questionnaire whic... more Background: The Dizziness Handicap Inventory (DHI) is a validated, self-report questionnaire which is widely used as an outcome measure. Previous studies supported the multidimensionality of the DHI, but not the original subscale structure. The objectives of this survey were to explore the dimensions of the Dizziness Handicap Inventory -German version, and to investigate the associations of the retained factors with items assessing functional disability and the Hospital Anxiety and Depression Scale (HADS). Secondly we aimed to explore the retained factors according to the International Classification of Functioning, Disability and Health (ICF). Methods: Patients were recruited from a tertiary centre for vertigo, dizziness or balance disorders. They filled in two questionnaires: (1) The DHI assesses precipitating physical factors associated with dizziness/unsteadiness and functional/emotional consequences of symptoms. The HADS assesses non-somatic symptoms of anxiety and depression. In addition, patients answered the third question of the University of California Los Angeles-Dizziness Questionnaire which covers the impact of dizziness and unsteadiness on everyday activities. Principal component analysis (PCA) was performed to explore the dimensions of the DHI. Associations were estimated by Spearman correlation coefficients. Results: One hundred ninety-four patients with dizziness or unsteadiness associated with a vestibular disorder, mean age (standard deviation) of 50.6 (13.6) years, participated. Based on eigenvalues greater one respectively the scree plot we analysed diverse factor solutions. The 3-factor solution seems to be reliable, clinically relevant and can partly be explained with the ICF. It explains 49.2% of the variance. Factor 1 comprises the effect of dizziness and unsteadiness on emotion and participation, factor 2 informs about specific activities or effort provoking dizziness and unsteadiness, and factor 3 focuses on self-perceived walking ability in relation to contextual factors. The first factor correlates moderately with disability and the HADS (values ≥0.6). The second factor is comparable with the original physical subscale of the DHI and factors retained in previous studies.

Games for Health Journal, 2014
Objective: Many women over 65 years of age suffer from mixed urinary incontinence (MUI) and execu... more Objective: Many women over 65 years of age suffer from mixed urinary incontinence (MUI) and executive function (EF) deficits. Both incontinence and EF declines increase fall risk. The current study assessed EF and dual-task gait after a multicomponent intervention that combined pelvic floor muscle (PFM) training and videogame dancing (VGD). Materials and Methods: Baseline (Pre1), pretraining (Pre2), and post-training (Post) neuropsychological and dual-task gait assessments were completed by 23 women (mean age, 70.4 years) with MUI. During the dualtask, participants walked and performed an auditory n-back task. From Pre2 to Post, all women completed 12 weeks of combined PFM and VGD training. Results: After training (Pre2 to Post), the number of errors in the Inhibition/Switch Stroop condition decreased significantly, the Trail Making Test difference score improved marginally, and the number of n-back errors during dual-task gait significantly decreased. A subgroup analysis based on continence improvements (pad test) revealed that only those subjects who improved in the pad test had significantly reduced numbers of n-back errors during dual-task gait. Conclusions: The results of this study suggest that a multicomponent intervention can improve EFs and the dual-task gait of older women with MUI. Future research is needed to determine if the training-induced improvements in these factors reduce fall risk.
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Papers by Eling D de Bruin