Lex Van Velsen
Biographic Data
| ID | 2143539 |
|---|---|
| NAME | Lex Van Velsen |
| GIVEN NAMES | Lex |
| FAMILY NAME | Van Velsen |
| SIGNATURE | VAN VELSEN L |
| AFFILIATIONS | Roessingh Research and Development |
| ORCID | 0000-0003-0599-8706 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 13 |
| AUTHOR COUNT | 8 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Attrition of older adults in web-based health interventions
To identify demographics and personal motivation types that predict dropping out of eHealth interventions among older adults. We conducted an observational cohort study. Participants completed a pre-test questionnaire and got access to an eHealth intervention, called Stranded, for 4 weeks. With survival and Cox-regression analyses, demographics and types of personal motivation were identified that affect drop-out. Ninety older adults started usin…
Development of an online service for coping with spousal loss by means of human-centered and stakeholder-inclusive design
To support older mourners after the loss of their partner, LEAVES, an online self-help service that delivers the LIVIA spousal bereavement intervention, was developed. It integrates an embodied conversational agent and an initial risk assessment. Based on an iterative, human-centered, and stakeholder inclusive approach, interviews with older mourners and focus groups with stakeholders were conducted to understand their perspective on grief and on…
Contextual Health Information Behavior in the Daily Lives of People with Type 2 Diabetes
Changes in lifestyle can have positive effects on treating type 2 diabetes (T2D), like sporting or healthy eating. Therefore, a person diagnosed with T2D is often advised to make healthy choices throughout the day, in addition to other interventions such as medication. To do this, he or she needs health information to support decision-making. Literature describes ample categorizations of types of (health) information behavior and theoretical mode…
Tailoring coaching strategies to users’ motivation in a multi-agent health coaching application
Embodied conversational agents are often included in health behaviour change applications as intelligent virtual coaches. A major challenge in their development is tailoring coaching dialogues to user profiles. Agents should collect information about the user and consequently adapt the strategy that guides their interactions. Previous research discovered relations between users’ motivation profiles and potential effective coaching strategies. In …
Acceptance and Potential Impact of the eWall Platform for Health Monitoring and Promotion in Persons with a Chronic Disease or Age-Related Impairment
Pervasive health technologies can increase the effectiveness of personal health monitoring and training, but more user studies are necessary to understand the interest for these technologies, and how they should be designed and implemented. In the present study, we evaluated eWALL, a user-centered pervasive health technology consisting of a platform that monitors users' physical and cognitive behavior, providing feedback and motivation via an eas…
Identification of community-dwelling older adults at risk of frailty using the PERSSILAA screening pathway
Pre-frailty is common among community-dwelling older adults. The PERSSILAA screening approach is a multi-factor, two-step screening process, potentially useful for primary prevention to identify those at risk of frailty and who will benefit most from preventive strategies
Public knowledge and preventive behavior during a large-scale Salmonella outbreak
To persuade the public to take preventive actions, public health organizations should deliver their message primarily through mass media. Wikipedia seems a promising instrument for educating the public about food-borne Salmonella
Requirements engineering for e-Government services
Requirements engineering for e-Government services
Public knowledge and preventive behavior during a large-scale Salmonella outbreak
To persuade the public to take preventive actions, public health organizations should deliver their message primarily through mass media. Wikipedia seems a promising instrument for educating the public about food-borne Salmonella
Identification of community-dwelling older adults at risk of frailty using the PERSSILAA screening pathway
Pre-frailty is common among community-dwelling older adults. The PERSSILAA screening approach is a multi-factor, two-step screening process, potentially useful for primary prevention to identify those at risk of frailty and who will benefit most from preventive strategies
Acceptance and Potential Impact of the eWall Platform for Health Monitoring and Promotion in Persons with a Chronic Disease or Age-Related Impairment
Pervasive health technologies can increase the effectiveness of personal health monitoring and training, but more user studies are necessary to understand the interest for these technologies, and how they should be designed and implemented. In the present study, we evaluated eWALL, a user-centered pervasive health technology consisting of a platform that monitors users' physical and cognitive behavior, providing feedback and motivation via an eas…
Tailoring coaching strategies to users’ motivation in a multi-agent health coaching application
Embodied conversational agents are often included in health behaviour change applications as intelligent virtual coaches. A major challenge in their development is tailoring coaching dialogues to user profiles. Agents should collect information about the user and consequently adapt the strategy that guides their interactions. Previous research discovered relations between users’ motivation profiles and potential effective coaching strategies. In …
Contextual Health Information Behavior in the Daily Lives of People with Type 2 Diabetes
Changes in lifestyle can have positive effects on treating type 2 diabetes (T2D), like sporting or healthy eating. Therefore, a person diagnosed with T2D is often advised to make healthy choices throughout the day, in addition to other interventions such as medication. To do this, he or she needs health information to support decision-making. Literature describes ample categorizations of types of (health) information behavior and theoretical mode…
Development of an online service for coping with spousal loss by means of human-centered and stakeholder-inclusive design
To support older mourners after the loss of their partner, LEAVES, an online self-help service that delivers the LIVIA spousal bereavement intervention, was developed. It integrates an embodied conversational agent and an initial risk assessment. Based on an iterative, human-centered, and stakeholder inclusive approach, interviews with older mourners and focus groups with stakeholders were conducted to understand their perspective on grief and on…
Attrition of older adults in web-based health interventions
To identify demographics and personal motivation types that predict dropping out of eHealth interventions among older adults. We conducted an observational cohort study. Participants completed a pre-test questionnaire and got access to an eHealth intervention, called Stranded, for 4 weeks. With survival and Cox-regression analyses, demographics and types of personal motivation were identified that affect drop-out. Ninety older adults started usin…
Medicine (5 works) · Psychology (5 works) · Applied Psychology (4 works) · Computer Science (4 works) · Public health (4 works) · Digital Mental Health Interventions (3 works) · Gerontology (3 works) · Mobile Health and mHealth Applications (3 works) · Nursing (3 works) · Applied Psychology (2 works)