More and more people use Pure for their Publication lists, Profile AND CV!

WHO?
Follow this link and you will see all the people that have now updated their Pure content and connected with their Staff profile Page (MePa).
(Add "umcg" to the search and get an indication how many UMCG staff already has started using Pure)

AUTOMATED SEARCH
We have activated "Automated Search" for about 1700 UMCG-staff members. They will receive alerts when new possible import candidates are indexed in PubMed and Web of Science. This will make keeping track of the UMCG publications much easier.
Today 1407 people in UMCG have possible import candidates.

If people want help updating their publications, they can email CMB@umcg.nl and mention Pure in the Subject


WHERE TO START?

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Environmental influences on neuroticism : a story about emotional (in)stability

No description abstract

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Regional aspects of melanoma diagnosis and treatment

No description abstract

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Biofilm on orthodontic retention wires

No description abstract

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50.000 records in Pure UMCG!

As of Februari 26th 2015 the research output of the UMCG contains 50.000 records in PURE. Since September 11th 2014 more than 8000 records were imported into the new Research Information System PURE(The tool is called Pure; the project is called “ETALAGE”)
This is done by individual authors, but at this point mainly by the staff of the Central Medical Library (CMB)
CATCHING UP
The project is still in the phase of “catching up : completing, checking, enhancing” the data of all the research output in there, ánd getting everything in there that’s still missing.
Currently the focus for the CMB is on completing the 2014 publications from web of Scienceof all known UMCG staff. Currently we have 2863 records published in 2014 connected to the UMCG.

YEARLY REPORTS
Making your yearly reports can then be generated directly with Pure.
Ask the CMB about this for your Department, or about any questions regarding Pure UMCG-> cmb@umcg.nl

50000PureUMCGThe record that made the 50.000 mark was:

The World Journal of Biological Psychiatry 2014 15:7 , 561-569

UMCG authors are: B.W.J.H. Penninx and R.C. Oude Voshaar

 

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Interaction between the gut and its microbiota in inflammatory bowel disease

No description abstract

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Motor control after anterior cruciate ligament reconstruction

No description abstract

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Collagens and retinal Müller cells in healthy and diseased vitreoretinal interface

No description abstract

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From stem cells to Schwann cells : potential applications of iPS cells and neural crest stem cells

No description abstract

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From stem cells to schwann cells : potential applications of iPS cells and neural crest stem cells

No description abstract

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The effect of a combined rehabilitation program on balance muscle strength functional performance and behavioral measures in people following total hip arthroplasty

People following total hip arthroplasty (THA} need to rehabilitate in order to restore and
improve physical functioning. It has been established that people following THA keep
showing lower balance performance and muscle strength, differences in walking parameters
and a lower physical performance compared to healthy peers. In addition, amount of
physical activity (PA} performed is below guidelines for older adults. The goal of the present
study was to establish the effect of a combined rehabilitation program on balance, strength,
functional performance and behavioral measures (fear of movement, fear of falling, selfefficacy
for exercise and amount of PA}.
Three subjects completed the program. Statistical analysis was conducted with merged data
from a previous pilot study (n=8}. These measures (timed up and go (TUGL berg balance
scale (BBSL one leg standing test (OLSL 1 RM hip abductors and the Western Ontario and
McMaster Universities Osteoarthritis Index (WOMAC)} all improved significantly. The other
outcome measures (n=3} showed substantial progression, these were results on the six
minutes walking test (6-MWTL walking speed, 1-RM unilateral leg press, Tampa scale for
kinesiophobia (TSK}, Falls efficacy scale-International (FES-1} and the amount of PA measured
with the Short Questionnaire to Assess Health-enhancing physical activity (SQUASH}. The
self-efficacy for exercise (SEE} scale showed inconsistent results.
In conclusion, the program was effective for all outcome measures, except for self-efficacy
for exercise. Results were discussed on clinical relevance and implications for future studies
were given.

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The effects of gradual and sudden dynamic perturbations on locomotor adaptation and retention

Abstract- The study of adaptation to perturbations in walking is one of the main sources of
information about (loco-) motor learning and adaptation. The method of the presentation of
perturbations is one important aspect of motor learning. Previous arm reaching studies
showed an improved adaptation effect when perturbations were presented gradually and a
faster adaptation when subjects were re-exposed to the perturbation on a short-term. This
does not automatically imply similar adaptation principles in locomotor systems. Therefore it
should be studied whether these learning principles count for locomotion as well. The aim of
this study was to determine whether suddenly or gradually applied perturbations during
walking revealed differences in strategies to generate locomotor adaptation and retention.
Twenty healthy subjects walked with either a suddenly applied dynamic perturbation or
gradually increasing dynamic perturbation for a period of 120 steps. After 120 steps in a
washout condition without a perturbation, they were re-exposed to a suddenly applied
perturbation for 50 steps. Leg muscle activity, joint kinematics and step characteristics were
measured and analyzed. Both groups adapted their locomotor patterns to the dynamic
perturbation, resulting in strong aftereffects in step parameters, kinematics and muscle
activity. Magnitude of aftereffects was similar for both groups, indicating that the subjects
did not adapt their locomotion pattern differently. During re-exposure to the perturbation
subjects immediately returned to the same level of adaptation as during the final level of
adaptation during the first exposure. This shows that both groups equally retained
information from the first exposure and adapted their initial response to the re-exposure
accordingly. These findings suggest that differences in tasks do not always result in different
adaptation strategies.
Keywords: adaptation, dynamic perturbations, gait, retention.

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The classification of the ADL tasks of the DCDDaily Test, based upon different aspects of motor control

The aim of the current study was to develop a classification system, based upon different
aspects of motor control involved in the performance of the activities of daily living (ADl)
tasks of the DCDDaily Test. The classification system was obtained after extensive literature
search and after discussions with a focus group. In this classification system, the 21 items of
the DCDDaily could be classified into five factors. Each factor consisted of items of the
DCDDaily which applied to the same underlying motor abilities. A confirmatory factor
analysis was performed for the group of five and six year old children, the group of seven
and eight year old children and on the total group, using an existing dataset comprising of
416 children (357 typically developing children and 59 children with developmental
coordination disorder) between five and eight years old. For the total group, the model
enclosed the data excellent after a few modifications. For the five and six year old children
and the seven and eight year old children, the fit of the models was acceptable after a few
modifications.

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Matching physical work load with functional capacity in healthy workers.

Objective: The aims of this study were to determine whether physical work load and functional
capacity can be matched and to determine at which percentile the normative values of the Functional
Capacity Evaluation (FCE) are valid.
Design: Cross-sectional study design.
Setting: Work place and rehabilitation centre.
Participants: 40 Healthy working subjects (28 males, 12 females), between 26 and 60 years of age,
working in 36 different occupations.
Interventions: Subjects occupations were categorized into four physical work demand categories
(sedentary, light, moderate and heavy). The functional capacity of the subject was determined by the
use of a 12-item FCE. Normative values of the functional capacity, which were categorized into the
four physical work demands categories, and the individual functional capacity of the subjects were
determined in a former study of Soer et al (2009). 12 The physical work load of the subjects was
determined by the use of the PalmTRAC method and by heart rate data which were collected in a 4
hour work place assessment (WP A).
Main outcome measures: In the WP A, the peak and total physical work load of the FCE activities
lifting high, lifting low, carrying, forward bending, overhead working and energetic load were
determined. Loads were expressed in kilograms, seconds and/or in metabolic equivalents (METS).
The physical work load of the subjects was compared with the functional capacity which was obtained
in the individual FCE. For every work demand category, a match with a percentile of the normative
values were determined. A sensitivity of95% was used to determine whether a percentile of the NV of
the FCE is a valid cut of point to match with physical work load.
Results: 85% of the subjects scored higher in their FCE than in the WPA in all activities. When
performing sedentary or light work, 98% of all subjects had a match at the tenth percentile of the NV
for all activities. 75% of the subjects had a match at the thirtieth percentile of the normative values
when performing moderate or heavy work.
Conclusion: Functional capacity and physical work load can be matched in most instances but
exceptions should be kept in mind especially for the domain ‘material handling’ in combination with
moderate or heavy physical work demands. Normative values can be matched with the tenth percentile
1
of the NV for sedentary and light work. For moderate and heavy work, a moderate match of 75% is
found at the thirtieth percentile of the NV.
Key words: Functional Capacity Evaluations and physical work load.

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WHEELCHAIR PROPULSION TECHNIQUE AND :MECHANICAL EFFICIENCY AFTER 3 WEEKS OF VARIABLE WHEELCHAIR TREADMILL EXERCISE IN ABLE-BODIED SUBJECTS USING THE OPTIPUSH BIOFEEDBACK SYSTEM

ABSTRACT- PURPOSE: To examine the differences in propulsion technique and mechanical efficiency after 3
weeks of variable low intensity wheelchair exercise on a motor driven treadmill in able bodied subjects.
METHOD: Before and after a 3 week low-intensity wheelchair exercise period, several technique parameters
were examined. The training of the eleven able-bodied subjects consisted out of nine sessions of low intensity
exercises, with the first and last session (the pre- and post-test) consisting of three 4 minute bouts and all other
sessions of two 4 minute bouts on a motordriven treadmill. The treadmill was set at a constant speed of 1.11 rn!s.
The variability in the training comprised changes in weight and changes in tire pressure. The power output was
measured with the afore mentioned Optipush. The data was analyzed with Matlab and MLwin. RESULTS: The
mechanical efficiency improved significantly, and so did a selection of the parameters for propulsion technique,
namely the cycle time, the push time, the push frequency, the work per push, the metabolic power, the contact
angle, the slope, and the negative power output dips at the start and the end of a push. CONCLUSION: A 3 week
variable handrim wheelchair exercise with novice able-bodied subjects and the use of a treadmill had a positive
effect on mechanical efficiency in this study. The results of the other variables may indicate a positive effect of
the propulsion technique (i.e. the force application and the timing variables) on the mechanical efficiency.

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Modeling Stride Time and Stride Length Variability with a Virtual Reality Paradigm in Parkinson’s Disease patients with and without Freezing of Gait

BACKGROUND: Freezing of gait (FOG) is a common and debilitating symptom
affecting many patients with advanced Parkinson’s disease (PD). Although the
pathophysiology of FOG is not fully understood, a number of observations regarding
the pattern of gait in patients with this symptom have been made. Increased ‘Stride
Time Variability’ (STV) has been one of the most robust of these features reported in
patients with FOG. In addition, increased ‘Stride Length Variability’ prior to an
episode of FOG has also been reported.
METHODS: In this study we sought to identify whether patients with FOG
demonstrated similar fluctuations in gait rhythm and step length whilst performing a
Virtual Reality (VR) gait task. Eighteen patients with freezing and 12 non-freezers
performed the VR gait task twice, once whilst ‘On’ their regular PD medication and
once in their practically defined ‘Off state. RESULTS: Significantly, patients with
FOG had greater variability in their step time variability than non-freezers in both the
‘On’ and ‘Off’ states, whilst all patients displayed greater step time variability during
their ‘Off’ state assessment. Finally, patients with FOG showed a significant increase
in the variability of their step length in the five steps prior to a behavioural freezing
episode when compared with a similar number of steps that were unrelated to a
behavioural freezing event.
CONCLUSIONS: The results of this study suggest that characteristic features of gait
disturbance observed in patients with FOG can be modeled by a VR gait paradigm,
offering the potential to further explore this phenomenon in PD.

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Connecting Culture and Coping comparing individual and teams from Australia and the Netherlands

Previous research suggests that culture may have confounding effects in shaping coping strategies
of athletes (Aldwin, 1994; Holt and Hogg, 2002; Anshel, 2010). However, up till this point, no
study has actually attempted to link culture to coping strategies of athletes. In this study we
explored the links between country, type of sport, gender, Hofstede’s (1994) five cultural
dimensions and athletes coping strategies. One hundred and twenty-six Australian and Dutch
athletes (mean age 16,72 years; s=3,35) completed a survey containing the Brief COPE
(Carver,1997) and an adapted version of the Value Survey Module (VSM-94, Hofstede 1994).
Results showed that a combination of country, type of sport and gender influenced the use of
problem-focused, emotion-focused and avoidance coping strategies of athletes. Furthermore, some
of Hofstede’s five cultural dimensions valued by the athletes predicted the use of coping strategies.
Lastly, results showed that athletes valued some of Hofstede’s five cultural dimensions differently;
Australian athletes valued short-term goals higher than Dutch athletes, individual athletes valued
group results higher than team athletes and female athletes valued power distance higher than did
their male counterparts. The results suggest that coping strategies of athletes are influenced by a
number of interacting factors, a very important factor being culture. Coping, therefore, is a far more
complex construct than previous research has suggested.

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Is there an effect of level of cardiorespiratory fitness on academic achievement and executive functioning in Dutch primary school children?

The aims of the present study were to i) investigate whether level of cardiorespiratory fitness has an
effect on academic achievement, ii) investigate whether level of cardiorespiratory fitness has an effect on
executive functioning and iii) to investigate whether the possible effect of cardiorespiratqry fitness on
executive functioning can partially explain the effect of cardiorespiratory fitness on academic
achievement. The study population consisted of 266 children {135 boys, 131 girls) aged 6- 11 years from
primary schools in the northern region of the Netherlands. Cardiorespiratory fitness was assessed with
the 20M Shuttle Run Test. Reading (EMT) and mathematics (TTR) were used as measures of academic
achievement. Planning ability (Tower of London), cognitive flexibility (Trailmaking A + B), inhibition
(Stroop Color Word Test) and working memory (Digit span backwards and visual memory span backwards)
were used as measures of executive functioning. A MANOVA analysis showed no effect of
cardiorespiratory fitness on either academic achievement or executive functioning in boys. In girls,
cardiorespiratory fitness effected academic achievement, more specifically, cardiorespiratory fitness has
an effect on mathematic performance in girls (F {2,126) = 5.91, p < 0.01, partial 112 = 0.09), but not on
reading performance (F {2,126) = 0.99, p = 0.38, partial 112 = 0.02). Higher fit girls showed better
mathematic performance than medium fit and lower fit girls. No effect was found on cardiorespiratory
fitness level on executive functioning in girls. Furthermore, cognitive flexibility and working memory were
significant predictors of academic achievement in boys and girls. In addition, planning ability was also a
significant predictor of academic achievement in girls. After controlling for these executive functions, the
effect of cardiorespiratory fitness on academic achievement in girls was maintained (F(4,244) = 3.08, p <
0.05, partial 112 = 0.05). In conclusion, increasing physical fitness by participation in moderate to vigorous
physical activity in children is not only beneficial for general health, but may also be beneficial for
academic achievement. Further research should examine possible mechanisms behind this relationship.

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The size of the spatiotemporal buffer used in feedforward visual control is set in spatial rather than temporal units.

No description abstract

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Internal responsiveness of the Repeated Modified Agility Test and its relationship with agility match performance in elite male volleyball players

The aims of this study were to examine the internal responsiveness of the Repeated Modified
Agility Test {RMAT), and to investigate the relationship between the RMAT and agility
match performance in elite volleyball players. Twelve men volleyball players (age: 22.9 ±
3.19 years; height: 196.7 ± 7.27 em; body mass: 83.8 ± 6.42 kg) completed the RMAT four
times in a 29-week study period. Agility match performance of players was determined by
way of notational analysis of ten different matches, which were well-distributed over the three
match periods between RMAT measurements. All movements performed in the preparatory
phase of a volleyball skill were coded by use of a classification system. Calculation of effect
sizes revealed large internal responsiveness for total time {TT) (ESu = -1.28) and peak time
{PT) (ES11 = -0.83). Across the season a significant decrease was found in both TT and PT (p
< .05). No differences in movement type frequencies were found over the season (p > .05). A
fast TT and PT at the RMAT was related to a high frequency of Locomotion movements, and
Stand still performed in matches (rs = -.90 and rs = -.83, p < .01, respectively). The results
indicate that the RMA T is able to detect changes in agility performance in elite volleyball
players and therefore seems an appropriate test to monitor agility over time. Besides, the
RMA T performances seems to be related to match performance, especially the frequency of
Locomotion movements and Stand still. However, agility match performance is a more
comprehensive concept than the amount of movements performed. Future studies should
address this issue.

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Internal responsiveness of the Repeated Modified Agility Test and its relationship with agility matchperforntance in elite ntale volleyball players

The aims of this study were to examine the internal responsiveness of the Repeated Modified
Agility Test {RMAT), and to investigate the relationship between the RMAT and agility
match performance in elite volleyball players. Twelve men volleyball players (age: 22.9 ±
3.19 years; height: 196.7 ± 7.27 em; body mass: 83.8 ± 6.42 kg) completed the RMAT four
times in a 29-week study period. Agility match performance of players was determined by
way of notational analysis of ten different matches, which were well-distributed over the three
match periods between RMAT measurements. All movements performed in the preparatory
phase of a volleyball skill were coded by use of a classification system. Calculation of effect
sizes revealed large internal responsiveness for total time {TT) (ESu = -1.28) and peak time
{PT) (ES11 = -0.83). Across the season a significant decrease was found in both TT and PT (p
< .05). No differences in movement type frequencies were found over the season (p > .05). A
fast TT and PT at the RMAT was related to a high frequency of Locomotion movements, and
Stand still performed in matches (rs = -.90 and rs = -.83, p < .01, respectively). The results
indicate that the RMA T is able to detect changes in agility performance in elite volleyball
players and therefore seems an appropriate test to monitor agility over time. Besides, the
RMA T performances seems to be related to match performance, especially the frequency of
Locomotion movements and Stand still. However, agility match performance is a more
comprehensive concept than the amount of movements performed. Future studies should
address this issue.

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