Enhancing Physical Activity and Healthy Aging Among Recent Retirees

Study Overview
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Brief Summary
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The purpose of REACT project is to provide cost-effective way to promote physical activity and reduce sedentary time among older adults. This is done by examining the efficacy of activity tracker based intervention on wake-time physical activity, sedentary time, sleep and other health outcomes among recent retirees. REACT study will be the first randomized physical activity trial targeted to time window right after retirement.

Official Title
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Enhancing Physical Activity and Healthy Aging Among Recent Retirees - Randomized Controlled In-home Physical Activity Trial

Conditions
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Exercise, Aging, Retirement

Intervention / Treatment
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* Device: Polar Loop 2 activity tracker


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: actual retirement date between Jan 2017 and Dec 2018 maximum of 12 months from the actual retirement capable of doing exercise (able to walk 500 m continuously) basic knowledge on how to use computer and Internet access at home Exclusion Criteria: current post-operative state or upcoming surgery within the next 6 months malign cancer or recent myocardial infraction

Ages Eligible for Study
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Minimum Age: 60 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Activity trackers<br>The participants were requested to wear a commercial wrist-worn activity tracker (Polar Loop 2, Polar, Kempele, Finland) every day and night for 12 months. | Device: Polar Loop 2 activity tracker<br>* The participants were instructed to aim to reach the daily activity goal, initially set at stage 1 as per the goals set by the trackers' manufacturer. The daily activity goal was based on user's typical daily activities, gender and age. The stage 1 daily activity goal corresponded to  1h/day of jogging or  2h/day of walking or  7h/day household activities or a combination of these activities. The tracker gave an inactivity alert as a vibration and text it's time to move on the screen of the tracker if the user has been still for 55 minutes.<br>|
| No Intervention: No activity trackers<br>Control group members were requested to abstain from the use of any type of activity trackers and they were informed that they will receive the activity trackers and guidance for using them after the follow-up. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in wake time physical activity | Accelerometer based measurement | Primarily change from baseline to 12 months, secondarily change from baseline to 3 months and to 6 months. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in wake time sedentary activity | Accelerometer based measurement | Primarily change from baseline to 12 months, secondarily change from baseline to 3 months and to 6 months. | 
| Change in sleep duration and quality | Accelerometer based measurement | Primarily change from baseline to 12 months, secondarily change from baseline to 3 months and to 6 months. | 
| Change in metabolic profile | Fasting blood sample: lipid profile (total cholesterol, HDL, LDL, triglycerides), fasting plasma glucose, HbA1C, and CRP; blood pressure: systolic and diastolic blood pressure; body composition: fat mass, fat free mass, body weight, waist circumference | Baseline to 12 months | 
| Change in activity locations | GPS-tracking provides data of the latitude, longitude, and time, i.e. when and where an individual is located. | Baseline to 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Retiree, Physical activity, Sedentary time, Intervention