A Tailored Feasibility Study to Increase Physical Activity and to Reduce Sedentary Time
- Conditions
- Cardiovascular Risk Factor
- Interventions
- Behavioral: Counseling letter
- Registration Number
- NCT02990039
- Lead Sponsor
- University Medicine Greifswald
- Brief Summary
The purpose of this study was (i) to develop a brief counseling letter intervention aiming to reduce sedentary time and to increase physical activity during leisure time among adults aged 42 to 64 years and (ii) to provide information on the feasibility.
- Detailed Description
The study aimed to assess the feasibility of a brief counseling letter intervention to increase physical activity and to reduce sedentary time in leisure time.
Following the Intervention Mapping Protocol we developed the counseling letter intervention. The intervention is based on the Health Action Process Approach, comprising 3 tailored letters based on separate assessments, delivered over 6 month.
All participants consented (i) to participate in an examination at the university hospital including standardized measurements of blood pressure, waist and hip circumference, body height and weight as well as blood sample taking, (ii) to fill in a paper-pencil questionnaire, and (iii) to wear an accelerometer for 7 days at baseline and at 12-month follow-up.
A general population sample of cardiovascular healthy adults was randomly allocated to a control and an intervention group. At 5 time points (baseline, 3-month, 6-month, 7-month, and 12-month follow-up) participants of both study groups completed standardized questionnaires.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 176
- age between 42 and 65 years
- resident in a pre-defined zip-code area
- cardiovascular event (myocardial infarction, stroke) or vascular intervention
- self-reported body-mass-index over 35 kg/m²
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Counseling letter (intervention group) Counseling letter Participants of the intervention group received a brief counseling letter intervention aiming to reduce sedentary time and to increase physical activity. The intervention comprised up to three tailored letters based on separate questionnaires.
- Primary Outcome Measures
Name Time Method Adherence: Drop-out rates in control and intervention group up to 12 month Measures: Analyses of drop-out rates (%) in control and intervention group
- Secondary Outcome Measures
Name Time Method Feasibility: Comprehensibility on intervention material via paper-pencil-assessment 12 month Measures: questions regarding the comprehensibility on intervention material (via paper-pencil-assessment)
physical activity by self-report Change from Baseline Physical Activity at 12 months Measures: paper-pencil-assessment (International Physical Activity Questionnaire-Long version, IPAQ-L)
sedentary time by self-report Change from Baseline Sedentary Time at 12 months Measures: paper-pencil-assessment (last 7-d sedentary behavior questionnaire, SIT-Q-7d)
sedentary time by accelerometry Change from Baseline Sedentary Time at 12 months Measures: objective measurement of physical activity by accelerometry
physical activity by accelerometry Change from Baseline Physical Activity at 12 months Measures: objective measurement of physical activity by accelerometry