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The impact of leisure-time physical activity and occupational physical activity on sickness absence : a prospective study among people with physically demanding jobs Universiteit Gent
Objectives This prospective study aimed to investigate the relation between occupational physical activity (OPA), leisure-time physical activity (LTPA) and sickness absence (SA). A second aim was to explore the possible interaction effects between OPA and LTPA in determining SA.Methods The study is based on data from 304 workers in the service and manufacturing sector. Moderate-to-vigorous physical activity (MVPA) was measured by two Axivity AX3 ...
Activity type inference and universal patterns for activity sequence generation in lightweight transportation models Universiteit Hasselt
Although transportation-related challenges have existed throughout the ages, more recently they have assumed enormous proportions. Negative economic, social and ecologic consequences are the result of our socio-economic system seeking a continuous economic growth through an increase in economic activities (e.g. work-related personal transport, logistics), and our desire for comfort while moving from one place to another. Technological solutions ...
The Effectiveness of a Computer-Tailored Web-Based Physical Activity Intervention Using Fitbit Activity Trackers in Older Adults (Active for Life): Randomized Controlled Trial KU Leuven
BACKGROUND: Physical activity is an integral part of healthy aging; yet, most adults aged ≥65 years are not sufficiently active. Preliminary evidence suggests that web-based interventions with computer-tailored advice and Fitbit activity trackers may be well suited for older adults. OBJECTIVE: The aim of this study was to examine the effectiveness of Active for Life, a 12-week web-based physical activity intervention with 6 web-based modules of ...
Location disaggregation for zone based travel plans Universiteit Hasselt
Activity-based models predict locations at TAZ (travel analysis zone) level. Recent research questions about carpooling, ride sharing , vehicle sharing, multi-modality, MaaS,. .. require space resolution at street address level. Pitfalls related to spatial resolution adaptation are identified and a disaggregation method beyond sampling from uniform distributions is presented. Daily travel plans generated by the FEATHERS activity based model for ...
Cost modeling in logistics using time-driven ABC experiences from a wholesaler Universiteit Gent
Purpose - The purpose of this paper is to describe the experiences of a wholesaler with time-driven activity-based costing (TDABC). Three research questions are addressed: How are complex logistics operations modeled by TDABC? Does TDABC provide more accurate cost information than activity-based costing (ABC)? How is TDABC cost information used? Design/methodology/approach - Case study research was performed at a Belgian wholesaler. Interviews ...
Motivational and environmental predictors of physical activity during the transition from elementary to secondary school: A self-determination and social-ecological approach KU Leuven
The transition from elementary to secondary school is an important event in childrens life where a lot of changes occur, such as a new physical school environment, new classmates and new teachers. Flemish children usually transfer to secondary school around the age of 11-13 years, which is a period where decreases of physical activity (PA) have been observed. The aim of this doctoral thesis was to examine childrens motivational processes in ...
Kinetic modelling: an integrated approach to analyze enzyme activity assays KU Leuven
BackgroundIn general, enzyme activity is estimated from spectrophotometric data, by taking the slope of the linear part of the progress curve describing the rate of change in the substrate or product monitored. As long as the substrate concentrations are sufficiently high to saturate the enzyme and, the velocity of the catalyzed reaction is directly proportional to the enzyme concentration. Under these premises, this velocity can be taken as a ...
Kinetic modelling: an integrated approach to analyze enzyme activity assays KU Leuven
Background In general, enzyme activity is estimated from spectrophotometric data, by taking the slope of the linear part of the progress curve describing the rate of change in the substrate or product monitored. As long as the substrate concentrations are sufficiently high to saturate the enzyme and, the velocity of the catalyzed reaction is directly proportional to the enzyme concentration. Under these premises, this velocity can be taken as a ...
The relation between environmental factors and pedometer-determined physical activity in children: the mediating role of autonomous motivation KU Leuven
Based on self-determination theory, the purpose of this study was to explore the mediating role of autonomous motivation in the relation between environmental factors and pedometer-determined PA among 10- to 12-year-old Flemish children. Data were collected from 787 6th grade pupils and one of their parents. Children completed self-report measures including autonomous motivation for PA and perceived autonomy support for PA by parents and ...