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The aim of this study will be to investigate the validity of a consumer available activity tracker (Polar M200) in free-living conditions to measure sedentary time.
The aim of the present study is to evaluate the validity from a commercially available wearable Polar device. Consumer-based activity trackers are generally cheaper, designed for long-term wear and are less intrusive. Potentially, consumer-based activity trackers can be used for research purposes, but high-quality validation studies are needed. The aims of this study will be to assess validity of sedentary outcome measures of a Polar device during free-living conditions in comparison with the ActivPAL3TM activity monitor (AP; PAL Technologies Ltd, Glasgow, UK), which is considered the gold standard to measure sedentary time in free-living conditions.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Healthy adult group | Experimental | Sixty healthy adults, aged 18-65 years, will be included following written informed consent. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Polar M200 | Device | Participants will have to wear the activity monitors (AP and Polar M200) for at least 7 days. Minutes spent in each activity type will be summed to a total day score. Participants will be instructed to do their regular daily life activities without limitation, but to note their main activity categories in an activity diary, with a main focus on cycling and participation in structured exercise. |
| Measure | Description | Time Frame |
|---|---|---|
| Sedentary time | Sedentary time | 7 days |
| Measure | Description | Time Frame |
|---|---|---|
| Steps | Number of steps | 7 days |
| Sleeping time | Sleeping time | 7 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Bert Op 't Eijnde, Prof. dr. | Hasselt University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hasselt University | Hasselt | Limburg | 3500 | Belgium |
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|
| Standing time |
Standing time |
| 7 days |
| Walking time | Walking and running time | 7 days |