Healthy
Conditions
Keywords
youtube, physical activity, fitness
Brief summary
This study will be an 8-week randomized controlled trial examining the effects of a YouTube-delivered aerobic and muscle strengthening physical activity intervention on university students' physical activity, fitness, sleep quality, and psychosocial health outcomes. Participants will be randomized into 1 of 2 groups: (1) intervention group (receive twice-weekly YouTube videos \[1 aerobic workout video; 1 muscle-strengthening workout video\] for 8 weeks); or (2) control group (receive twice-weekly YouTube videos with general health information \[no physical activity-related information or workouts\] for 8 weeks). Baseline (0 weeks), mid-point (4 weeks), and post-test (8 weeks) testing will take place and the following outcome measures will be assessed at these time points: participants' free-living (7-day) objectively-measured physical activity and sleep quality data will be collected; anthropometric measures (height, weight, percent body fat); cardiorespiratory and muscular fitness; and psychosocial assessments (perceived physical activity barriers and social support).
Interventions
BEHAVIORALYouTube-delivered aerobic and muscle-strengthening physical activity intervention
Participants in the intervention group will receive two YouTube-delivered videos each week, for 8 weeks. In detail, on Monday, participants will receive an aerobic-based physical activity video with information and a workout to complete and on Thursdays, the participants will receive a video with muscle-strengthening physical activity information and a workout to complete.
Sponsors
University of Minnesota
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* 18-35 years of age; able to participate in aerobic and muscle-strengthening exercise; healthy (i.e., no diseases or clinical/mental health conditions which will prevent physical activity participation); does not meet minimum physical activity guidelines criteria for aerobic (≥ 150 minutes per week of moderate-to-vigorous intensity physical activity) and muscle-strengthening (≥ 2 days per week; 8-10 exercises for all major muscle groups) physical activity at time of enrollment; willing to be randomized to the intervention or control group.
Exclusion criteria
* less than 18 years old or greater than 35 years old; physical or mental health contradictions which do not allow participants to participate in physical activity; exceed minimum aerobic or muscle-strengthening physical activity guideline recommendations; unwilling to be randomized to either intervention or control group.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in objectively measured free-living physical activity | Baseline, 4 weeks (mid), and 8 weeks (end) | 7-day measurement using wrist-worn ActiGraph tri-axial accelerometer |
| Change in adherence to muscle-strengthening guidelines | Baseline, 4 weeks (mid), and 8 weeks (end) | Assessed by 7-day physical activity recall interview to see if participants engaged in muscle-strengthening activity at least 2 days per week. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in muscular fitness | Baseline, 4 weeks (mid), and 8 weeks (end) | 60 second pushups and sit-ups muscular endurance tests (maximal repetitions) |
| Change in intrinsic Motivation | Baseline, 4 weeks (mid), and 8 weeks (end) | Psychosocial survey |
| Change in social support | Baseline, 4 weeks (mid), and 8 weeks (end) | Psychosocial survey |
| Change in sleep quality | Baseline, 4 weeks (mid), and 8 weeks (end) | 7-day measurement using wrist-worn ActiGraph tri-axial accelerometer |
| Change in body weight (kg) | Baseline, 4 weeks (mid), and 8 weeks (end) | Measured using stadiometer to the nearest 0.1 kg |
| Height (cm | Baseline | Measured using digital bodyweight scale to the nearest 0.1 cm |
| Change in body fat percentage | Baseline, 4 weeks (mid), and 8 weeks (end) | Measured using the digital weight scale used to assess body weight via bioelectrical impedance |
| Change in perceived physical activity barriers | Baseline, 4 weeks (mid), and 8 weeks (end) | Psychosocial survey |
| Change in cardiorespiratory Fitness | Baseline, 4 weeks (mid), and 8 weeks (end) | YMCA 3-minute step test |
Countries
United States
Outcome results
None listed