Meetinstrument kan goed voorspellen welke ouderen de meeste zorg nodig hebben

Lilian Peters: Toward tailored elderly care with self-assessment measures of frailty case complexity Twee nieuwe meetinstrumenten, de Groningen …

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Meetinstrument kan goed voorspellen welke ouderen de meeste zorg nodig hebben

Lilian Peters: Toward tailored elderly care with self-assessment measures of frailty case complexity Twee nieuwe meetinstrumenten, de Groningen …

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Verbetering van de screening op baarmoederhalskanker

Rong Wang: New insights in methodology of screening for cervical cancer Volgend jaar verandert de screening op baarmoederhalskanker in Nederland. Het …

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Verbetering van de screening op baarmoederhalskanker

Rong Wang: New insights in methodology of screening for cervical cancer Volgend jaar verandert de screening op baarmoederhalskanker in Nederland. Het …

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Fatigue and physical activity in community-dwelling elderly and in Parkinson patients

INTRODUCTION – Fatigue affects the quality of life of elderly in general and of
Parkinson’s disease (PD) patients in particular. Fatigue is supposed to be associated with
physical activity, but so far the exact nature of this relation remains unclear. This crosssectional
pilot study was performed to enhance insight into the relation between fatigue
and physical activity while taking into account potentially influential factors like
fatigability, physical fitness and sleep quality.
METHODS – Fatigue was evaluated using the Multidimensional Fatigue Inventory.
Physical activity was measured 24 hours a day during one week using tri-axial
accelerometry of the lower back. Physical fitness, sleep quality, and fatigability were also
measured, using objective and subjective measuring instruments.
RESULTS – A few associations were found between fatigue and physical activity.
Elderly with lower levels of mental fatigue walked more (p < 0.05). In the PD patients
this association was reverse (p < 0.05). PD patients with reduced activity were more
sedentary. There were also several negative associations found between fatigue and
physical fitness. (Timed Up & Go, p <0.05; BMI, p <0.05). No clear associations were
found with sleep quality and fatigability.
CONCLUSION – Firm conclusions on the relation between fatigue and physical activity
cannot be drawn. However results indicate that elderly and PD patients with a better
physical fitness have lower levels of fatigue. The role of fatigability in those relations
remains unclear due to the lack of a valid and reliable fatigability field-test. Future
research should address this.

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Mensen met lagere sociaaleconomische status krijgen vaker chronische nierschade

Priya Vart: Prevention of chronic kidney disease and its consequences: The role of socioeconomic status Hoe lager de sociaaleconomische status, des …

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Mensen met lagere sociaaleconomische status krijgen vaker chronische nierschade

Priya Vart: Prevention of chronic kidney disease and its consequences: The role of socioeconomic status Hoe lager de sociaaleconomische status, des …

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Hulp bij kiezen juiste statistische methode voor medisch onderzoek

Edwin Spithoven: Autosomal Dominant Polycystic Kidney Disease Traditionele behandelingen voor mensen met chronische nierklachten, zoals strikte …

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Autosomal Dominant Polycystic Kidney Disease

Edwin Spithoven: Autosomal Dominant Polycystic Kidney Disease This thesis deals with Autosomal Dominant Polycystic Kidney Disease (ADPKD) and …

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Standaardbehandeling stopt nierachteruitgang bij patiënten met cystenieren niet

Edwin Spithoven: Autosomal Dominant Polycystic Kidney Disease Traditionele behandelingen voor mensen met chronische nierklachten, zoals strikte …

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Nachtelijke thuisbeademing voor COPD-patiënten kan nieuwe ziekenhuisopname niet voorkomen

Fransien Struik: Chronic non-invasive ventilation in COPD Uit een nationale studie waaraan 48 ziekenhuizen hebben meegewerkt, blijkt dat het ’s …

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Nachtelijke thuisbeademing voor COPD-patiënten kan nieuwe ziekenhuisopname niet voorkomen

Fransien Struik: Chronic non-invasive ventilation in COPD Uit een nationale studie waaraan 48 ziekenhuizen hebben meegewerkt, blijkt dat het ’s …

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Standaardbehandeling stopt nierachteruitgang bij patiënten met cystenieren niet

Nazanin Nooraee: Statistical methods for marginal inference from multivariate ordinal data Statistische methodes, modellen en zelfs speciale software …

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Hulp bij kiezen juiste statistische methode voor medisch onderzoek

Nazanin Nooraee: Statistical methods for marginal inference from multivariate ordinal data Statistische methodes, modellen en zelfs speciale software …

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The influence of the different cognitive domains on dual-task cost of gait in cognitively impaired elderly

Introduction: A decline in gait performance is often seen in elderly with cognitively impairment.
Previous research showed that gait performance is related to cognition, in particular to the executive
functions. Although other cognitive functions are also likely to be impaired in cognitively impaired
elderly, much is still unknown about their influence on gait performance. The aim of the present
study was to investigate which cognitive domains influence the dual-task cost (DTC} of gait in
cognitively impaired elderly.
Methods: Nineteen elderly with the suspicion of cognitive impairment were recruited from the
population of elderly patients who visited the department of Medical Psychology of the Slotervaart
Hospital for a neuropsychological examination (age 77.2 ± 6.4 years, MMSE score 23.2 ± 4.4). The
neuropsychological examination examined five cognitive domains: (I) attention and psychomotor
speed, (II) executive functions, (Ill) memory, (IV) visuo-spatial and constructive abilities, and (V)
language. To assess gait, subjects walked with and without a verbal dual-task while wearing a tri-axial
accelerometer recording trunk accelerations. Gait speed, mean and coefficient of variation of step
times were calculated. Furthermore, for the media-lateral and anterior-posterior trunk accelerations
differences in dynamic stability were quantified in terms of the magnitude (root mean square), the
regularity of step time (a of step time), smoothness and rhythm (harmonic ratio), and predictability
(sample entropy) of trunk accelerations.
Results: In response to the dual-task, gait speed significantly decreased, while mean and coefficient
of variation of step times increased, and the smoothness, regularity and predictability of trunk
accelerations increased. Furthermore, the executive functions and visuo-spatial and constructive
abilities influenced DTC of gait, while an association was not found for attention, memory and
language.
Conclusion: This study showed that for cognitively impaired elderly, both executive functions and
visuo-spatial and constructive abilities were related to the DTC of gait. This indicates that these two
domains should be assessed in cognitively impaired elderly in order to detect fall risk. In addition, it
appears that attention is not a predictor of the DTC of gait.

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Has the klapskate hinge position effect(s) on speed skating kinematics? A case study using inertial motion capture in combination with local positioning data

Purpose The aim of the present case study was to examine possible effect(s) of the klapskate hinge position on
speed skating kinematics using inertial motion capture and local positioning measurement data. Method One
male elite Dutch speed skater performed three constant velocity submaximal 5-lap trials, which each trial a
different klapskate hinge position. The participant wore a MVN Biomech lycra suit (Xsens Technologies B.V.,
Enschede, The Netherlands) with 17 small 3D inertial and magnetical sensors on different body segments and a
local positioning (LPM) sensor on his back. Combining these datasets in a fusion scheme which utilized a
biomechanical model of the human body and applied implicit knowledge, kinematical output data was
gathered. Finally, data analysis was performed on the middle three laps and started with the calculation of the
global positions of the center of mass (CoM) and discriminating between four different type of strokes. Results
First, without LPM data, the inertial measurement system was misjudging the global positions of the body
center of mass due to the gliding push-off. Second, clear distinctions between straight and curve strokes were
observed, e.g. in stroke frequencies, and (left/right assymetries in) knee joint angles. Third, and most
remarkable, the course of the hip and knee angle as well as the range of motion in the posterior hinge position
condition were considerably smaller for every type of stroke, compared to the neutral and anterior conditions.
This effect was most pronounced for the left curve stroke. Finally, mean push-off angle of the left straight
stroke at the onset of push-off was larger for the posterior condition with respect to both other conditions.
Conclusion Continuous motion capture revealed a lot of details of the speed skating motion. For example, the
passing of one skate in front of the other during the curve stroke seemed to be resembled in the knee angle data.
Differences between hinge positions, even for a relatively small range, were observed for various kinematic
variables. Those results demonstrated that the participant might even have anticipated on varying hinge
positions already before push-off started.

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The effect of a barrier approach intervention for adults on physical activity levels and on the accuracy of self-reported physical activity

Background Previous studies showed a lack of long term effeds of interventions aiming to increase
physical activity. Next to focusing on motivation, reducing perceived barriers to physical activiW seems
promising to increase and maintain activiW eve~. Furthermore, it is not known yet how contents of
interventions can influence the accuracy of self-reported physical activiW, while this is a commonly
used measurement to retermine intervention effects. Therefore, the aim of this study was to
investigate the effect of two various barrier approach interventions for adults on 1) physical activiW
leves, and 2) the accuracy of self-reported physical activity.
Methodv Accelerometers were used to objectively determine physical activit¥ at the pretest and
posttest These results were compared with the results of questionnaires to retermine the accuracy of
self-reported activiW. Participants (18-70 years okl) were rancbmly assigned to a taihred individual
intervention (N=12) or to a usual care group intervention (N=9).
Results For both interventions, a non-significant trend was found for increased activiW eve~ at the
posttest. The accuracy of self-reported activit¥ decreased for aU eves after attending an intervention,
except for light activities of the individual intervention where a Jarge increase of accuracy was found
Conclusions Reducing perceived barriers to physical activit¥ might be helpful in increasing activit¥
levek A change in the accuracy of self-reported activi}1 leves shows the need for interventions to use
objective measurements to determine effects on physical activiW.

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Influence of various warming-up intensities on the pacing strategy of a 4000 meter cycling time trial performance.

Purpose: Although there is clear evidence for the influence of a warming-up (WU) on subsequent
exercise, the influence of a WU on the pacing strategy remains unknown. The purpose of this study
was to explore the effect of three different WU conditions on the pacing strategy and oxygen
consumption (V”02) kinetics over a 4000 meter individual cycling time trial (TI).
Methods: Eleven participants performed three 4000 meter TI’s on their own road bike, mounted in a
Tacx. Each n was preceded by a different WU; 1) no warming-up (NoWU), 2) 35% (WU35) and 3)
70% of the v·o2max (WU70). Pulmonary gas exchange (breath by breath) and power output were
measured during then.
Results: No difference in pacing strategy was found between the three different WU conditions: F(2,
20) = 1.428, P > 0.05, nor when a separate look at the first 1000 meter (F(2, 20) = 0.044, P > 0.05) or
the last 1000 meter (F(2, 20) = 3.193, P > 0.05) of then was taken. v·o2 kinetics did not change in the
different WU conditions when they were compared over separate 400 meter segments: F(2, 20) =
0.469, p > 0.05.
Conclusion: The current study found no difference in pacing strategy on a 4000m n, when WU
preceding the n was executed on different intensities. Neither was a significant difference in the
v·o 2 kinetics detected throughout the different WU conditions. Furthermore, no difference in
performance was found as a result of the different WU conditions, which might be a reason why no
difference in pacing strategy throughout the study was found.

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Post-Scoring Non-Verbal Expressions in World Cup Association Football: Does it Foster Psychological Resilience?

Objective: Positive emotions could fuel psychological resilience following Fredrickson’s broaden-and-build
theory (2001, 2004). In association football, conceding a goal can be a psychological setback to
players or teams for which they need to be resilient. The current study examined the association between
non-verbal behaviors players express after scoring and the ability of a team to overcome conceded goals.
Design and method: Post-scoring behaviors of a goal scorer and his team were video-analyzed of 3 87
goals in 153 matches ofthe last three FIFA world cups (2002, 2006 and 2010).
Results: 11.8% of the teams that conceded a goal were able to overcome this setback and eventually win
the match. Overall, players expressed themselves extensively after scoring, but self-oriented rather than
team-oriented. One of nineteen positive expressive behaviors was expressed more often by teams that
overcame conceded goals compared to other teams.
Conclusion: The findings suggest association football players barely express positive emotions to each
other. It is recommended to raise awareness of potential benefits of positive expressions and to coach
players and teams in using them.

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Influence of different types of feedback on learning to control grip force with a myoelectric prosthesis

Training can be used to enhance the functionality of a myoelectric prosthesis. One of the aspects of a
good control of the prosthesis is to be able to control the grip force of the hand when picking up objects.
Providing appropriate feedback can help to improve control of the grip force applied to a picked-up
object. The purpose of this research is to determine what type of feedback facilitates learning to control
the force of a myoelectric prosthesis. Two types of augmented feedback are used; knowledge of result
(KR) and knowledge of performance (KP). Furthermore, when learning a task, a lot of variability is
present at the beginning of the learning process. During the learning process, this variability is reduced.
The method of Muller and Sternad (2004) is used to take a closer look at the variability. Sixteen ablebodied
participants participated in the study, they were divided into two groups that each received a
different form of feedback (KR or KP). They performed a pre-, post- and retention test and between the
pre- and post test they followed a training. The training was a computer game in which a ball had to be
released with a certain angle and velocity to hit a goal. The results show a better performance on the test
and as well on the training of the group that received KR as feedback. Therefore, it is suggested that KR
is more beneficial in learning to control the force of a myoelectric prosthesis.

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