YouTube-Delivered Physical Activity Intervention

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Behavioral: YouTube-delivered aerobic and muscle-strengthening physical activity intervention

• Registration Number: NCT04499547
• Lead Sponsor: University of Minnesota

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).

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study First Submitted: 2020-07-28
• Study First Submitted QC: 2020-07-31
• Study First Posted: 2020-08-05
• Study Start: 2020-12-02
• Primary Completion: 2021-03-27
• Study Completion: 2021-04-28
• Status Verified: 2022-03
• Last Update Submitted: 2022-03-28
• Last Update Posted: 2022-04-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 64

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.

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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.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Physical activity intervention	YouTube-delivered aerobic and muscle-strengthening physical activity intervention	Will receive twice-weekly, YouTube-delivered aerobic and muscle-strengthening physical activity videos for 8 weeks.

Primary Outcome Measures

Name	Time	Method
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.
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

Secondary Outcome Measures

Name	Time	Method
Change in perceived physical activity barriers	Baseline, 4 weeks (mid), and 8 weeks (end)	Psychosocial survey
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 cardiorespiratory Fitness	Baseline, 4 weeks (mid), and 8 weeks (end)	YMCA 3-minute step test
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 body weight (kg)	Baseline, 4 weeks (mid), and 8 weeks (end)	Measured using stadiometer to the nearest 0.1 kg
Change in sleep quality	Baseline, 4 weeks (mid), and 8 weeks (end)	7-day measurement using wrist-worn ActiGraph tri-axial accelerometer
Change in social support	Baseline, 4 weeks (mid), and 8 weeks (end)	Psychosocial survey
Height (cm	Baseline	Measured using digital bodyweight scale to the nearest 0.1 cm

Trial Locations

Locations (1)

University of Minnesota - Twin Cities; 🇺🇸 Minneapolis, Minnesota, United States