Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Improvements in fitness are not obligatory for exercise training-induced improvements in CV risk factors
    Hartman, Yvonne A.W. ; Hopman, Maria T.E. ; Schreuder, Tim H. ; Verheggen, Rebecca J.H.M. ; Scholten, Ralph R. ; Oudegeest-Sander, Madelijn H. ; Poelkens, Fleur ; Maiorana, Andrew J. ; Naylor, Louise H. ; Willems, Peter H. ; Tack, Cees J. ; Thijssen, Dick H.J. ; Green, Daniel J. - \ 2018
    Physiological Reports 6 (2018)4. - ISSN 2051-817X
    Cardiovascular diseases - exercise training - physical fitness - risk factors
    The purpose of this study was to assess whether changes in physical fitness relate to changes in cardiovascular risk factors following standardized, center-based and supervised exercise training programs in subjects with increased cardiovascular risk. We pooled data from exercise training studies of subjects with increased cardiovascular risk (n = 166) who underwent 8–52 weeks endurance training. We determined fitness (i.e., peak oxygen uptake) and traditional cardiovascular risk factors (body mass index, blood pressure, total cholesterol, high-density lipoprotein cholesterol), before and after training. We divided subjects into quartiles based on improvement in fitness, and examined whether these groups differed in terms of risk factors. Associations between changes in fitness and in cardiovascular risk factors were further tested using Pearson correlations. Significant heterogeneity was apparent in the improvement of fitness and individual risk factors, with nonresponder rates of 17% for fitness, 44% for body mass index, 33% for mean arterial pressure, 49% for total cholesterol, and 49% for high-density lipoprotein cholesterol. Neither the number, nor the magnitude, of change in cardiovascular risk factors differed significantly between quartiles of fitness change. Changes in fitness were not correlated with changes in cardiovascular risk factors (all P > 0.05). Our data suggest that significant heterogeneity exists in changes in peak oxygen uptake after training, while improvement in fitness did not relate to improvement in cardiovascular risk factors. In subjects with increased cardiovascular risk, improvements in fitness are not obligatory for training-induced improvements in cardiovascular risk factors.
    Groen en leren : de meerwaarde van groen voor het welbevinden in de leeromgeving samengevat
    Spijker, J.H. - \ 2017
    Wageningen : Wageningen Environmental Research - 7
    beplantingen - onderwijs - leren - schoolterrein - leerprestaties - openbaar groen - klimaat - temperatuur - gezondheid - sociaal welzijn - luchtkwaliteit - lichamelijke activiteit - lichamelijke fitheid - stressfactoren - kinderen - plantations - education - learning - school site - educational performance - public green areas - climate - temperature - health - social welfare - air quality - physical activity - physical fitness - stress factors - children
    de meerwaarde van groen voor het welbevinden in de leeromgeving samengevat
    Effect van voerniveau bij drachtige lacterende zeugen op reproductie en conditie = Effect of feeding level in gestating lactating sows on reproduction and condition
    Peet-Schwering, C.M.C. van der; Rommers, J.M. ; Troquet, L.M.P. ; Soede, N.M. - \ 2015
    Wageningen : Wageningen UR Livestock Research (Livestock Research report 861) - 39
    zeugen - voeropname - varkensvoeding - varkenshouderij - lichamelijke fitheid - zogen - voortplantingsvermogen - biggen - lactatie - sows - feed intake - pig feeding - pig farming - physical fitness - suckling - reproductive performance - piglets - lactation
    Op VIC Sterksel is onderzocht wat het effect is van het voerniveau van zeugen tijdens de laatste 8 dagen van een zes weekse lactatie waarin ze ook drachtig zijn op de gewichts- en spekdikte ontwikkeling van de zeugen, de resultaten van de biggen en het aantal levend en dood geboren biggen in de volgende worp. De resultaten van het onderzoek zijn in dit rapport beschreven.
    Lange diertransporten: extra eisen fitheid onnodig
    Ouweltjes, W. - \ 2014
    V-focus 11 (2014)1. - ISSN 1574-1575 - p. 30 - 31.
    veevervoer - lichamelijke fitheid - geschiktheid - richtlijnen (directives) - landbouwbeleid - transport of animals - physical fitness - eligibility - directives - agricultural policy
    In opdracht van het ministerie van Economische Zaken is onderzoek gedaan naar specifieke problemen bij het bepalen van de geschiktheid van dieren voor lange transporten. Ook is gekeken of er voor deze transporten hogere eisen gesteld moeten worden aan de fitheid van de dieren.
    Dietary strategies to augment muscle mass in the elderly
    Tieland, C.A.B. - \ 2013
    Wageningen University. Promotor(en): Lisette de Groot; L.J.C. van Loon. - S.l. : s.n. - ISBN 9789461735676 - 150
    eiwittoevoegingen - lichaamsbeweging - spiergewicht - lichamelijke fitheid - ouderen - maatregel op voedingsgebied - protein supplements - exercise - muscle weight - physical fitness - elderly - nutritional intervention

    Background: The world population is aging rapidly. This growth of the aging population is accompanied by an increased number of frail elderly people who are at risk of adverse health outcomes such as disability, co-morbidity and mortality. A dominant feature of frailty is the age related loss of muscle mass, strength and performance, also called sarcopenia. Resistance-type exercise training and dietary protein supplementation are considered promising strategies to reverse sarcopenia and subsequent frailty. However, strong evidence for the impact of protein supplementation with or without resistance exercise in frail elderly people is scarce. Well-designed intervention studies in frail elderly people are needed to define new leads for the development of nutritional and exercise interventions to effectively prevent or treat the progressive loss of muscle mass, strength and physical performance with aging. Therefore, the aims of this thesis are to study 1) the impact of protein supplementation and 2) the impact of protein supplementation during prolonged resistance-type exercise training on muscle mass, strength and physical performance in frail elderly people.

    Methods: First, we studied various characteristics of dietary protein intake, including the distribution of dietary protein intake throughout the day, and the use of protein-containing food sources in various elderly populations. With this knowledge, we designed two large intervention trials to study the impact of dietary protein supplementation with or without prolonged resistance-type exercise training on muscle mass, strength and physical performance in frail elderly people. In addition, we assessed the usefulness of handgrip strength as a measure of post exercise strength differences and studied the association of vitamin D status and vitamin D intake on muscle mass, strength and physical performance in a frail elderly population.

    Results: Dietary protein intake in frail and institutionalized elderly people were especially low at breakfast and lunch. Supplementing protein at breakfast and lunch did not increase muscle mass but improved physical performance in frail elderly people. Resistance-type exercise training improved muscle leg strength and physical performance, but not handgrip strength. Supplementing protein at breakfast and lunch was required to significantly increase muscle mass during prolonged resistance-type exercise training in frail elderly people. Furthermore, low vitamin D status and vitamin D intake were associated with impaired physical performance.

    Conclusions: Although dietary protein supplementation does not increase muscle mass, it represents a promising strategy to improve physical performance in frail elderly people. Prolonged resistance-type exercise training represents an effective strategy to improve strength and physical performance, but dietary protein supplementation is required to allow muscle mass gain during exercise training in frail elderly people.

    Fit for travel/Fitness during transport : Selectie van criteria om geschiktheid voor (lang) transport van varkens en rundvee te bepalen
    Dixhoorn, I.D.E. van; Kluivers-Poodt, M. ; Smolders, E.A.A. ; Hindle, V.A. ; Lambooij, E. - \ 2010
    Wageningen : Wageningen UR Livestock Research (Rapport / Wageningen UR Livestock Research 431) - 53
    transport - veevervoer - dierenwelzijn - diergezondheid - lichamelijke fitheid - geschiktheid - selectie - eu regelingen - wetgeving - varkens - rundvee - dierlijke productie - transport - transport of animals - animal welfare - animal health - physical fitness - eligibility - selection - eu regulations - legislation - pigs - cattle - animal production
    This report contains suggestions for parameters to be used as indicators of fitness to travel prior to the journey
    De FLASH! campagne: een aanpak in beweging
    Wink, G. ; Woerkum, C.M.J. van; Renes, R.J. - \ 2006
    Wageningen : Communicatiemanagement, Wageningen Universiteit - 81
    communicatie - voorlichting - publiciteit - sport - lichamelijke fitheid - lichamelijke activiteit - massamedia - nederland - communication - extension - publicity - sport - physical fitness - physical activity - mass media - netherlands
    Behavioural motivations and abilities in broilers
    Bokkers, E.A.M. - \ 2004
    Wageningen University. Promotor(en): Bas Kemp, co-promotor(en): Paul Koene. - Wageningen, The Netherlands : Ponsen & Looijen - ISBN 9789085040064 - 155
    vleeskuikens - pluimvee - diergedrag - motivatie - lichamelijke activiteit - lichamelijke fitheid - voortbeweging - voedingsgedrag - overeten - groei - overgewicht - dierenwelzijn - pluimveehokken - conditionering - broilers - poultry - animal behaviour - motivation - physical activity - physical fitness - locomotion - feeding behaviour - overeating - growth - overweight - animal welfare - poultry housing - conditioning
    Broilers are chickens kept commercially under intensive husbandry conditions for poultry meat production. They grow to a slaughterweight of approximately 2.2 kg in 6 weeks. Broilers show a pronounced decrease in behavioural activity during their short life. The aim of this thesis was to gain more insight into the influence of both motivation and ability on behavioural activity in broilers. The distinction between motivation and ability is relevant for the interpretation of behavioural activity in broilers in terms of welfare. Broilers were observed when kept in pens with good facilities and in several ex situ tests where they had to work for food. Broilers showed all normal juvenile chicken behaviours, but the time spenton each behaviourhas changed. Many behavioural patterns were shown in a sitting posture instead of in a standing posture. Performance in short physical tasks depended on motivation and physical ability. Hunger and satiety mechanisms have changed compared to layer chickens, but the motivation to work for food still can be manipulated in broilers. Broilers are willing to peck a key many times or to walk long distances to obtain food rewards, but their performance seemed to be dependent on body weight. Apart from having an abnormal high motivation to eat, broilers are normal biologically functioning animals. Parallel to the effect of overweight on the quality of life in humans, the abnormal high body weight at a young age has a negative impact on the welfare of broilers. Broilers are restricted to display behaviours for which they are motivated imposed by their high motivation to eat, which is associated with their fast growth and high body weight at young age, or by environmental conditions in which they are usually kept.
    Groen voor een aangename lunchwandeling
    Bervaes, J.C.A.M. ; Hendriksen, I. ; Middelkoop, M. van - \ 2003
    Groen : vakblad voor groen in stad en landschap 59 (2003)10. - ISSN 0166-3534 - p. 12 - 15.
    lichamelijke activiteit - lichamelijke fitheid - werk - lopen - openluchtrecreatie - beweging - lunch - milieu - openbaar groen - physical activity - physical fitness - work - walking - outdoor recreation - movement - lunch - environment - public green areas
    Uit TNO onderzoek blijkt dat de omgeving van de werklocatie zowel een stimulerende als een belemmerende factor kan zijn om te wandelen tijdens de lunchpauze
    DNA microarrays: Technische aspecten en toepassing in voedingsonderzoek
    Keijer, J. - \ 2001
    Voeding Nu 3 (2001)9. - ISSN 1389-7608 - p. 17 - 20.
    voedingsonderzoek bij de mens - metabolische studies - technologie - genexpressie - moleculaire genetica - voedingsfysiologie - gezondheid - lichamelijke fitheid - genexpressieanalyse - human nutrition research - metabolic studies - technology - gene expression - molecular genetics - nutrition physiology - health - physical fitness - genomics
    Over het begrip microarraytechnologie en de toepassingen er van. Meerdere effecten van bioactieve voedingscomponenten op weefsel, cellen en organismen kunnen tegelijkertijd gemeten worden. Deze kennis is van belang om te beoordelen of biologisch actieve voedingscomponenten veilig toegepast kunnen worden in fuctionele voedingsmiddelen
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