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This cluster randomized controlled trial will evaluate a community-based bicycle safety education program with and without an in-person parent training component. The investigators will recruit 180 early adolescent bicyclists (ages 9 to 12) and a parent/guardian from local neighborhood centers after school and summer programs, where the investigators have conducted preliminary studies. Randomization into the three study groups will occur at the site-level.
Adolescent bicycles in all study group sites will be equipped with Pedal Portal, an innovative bicycle-mounted GPS/video system developed by the research team to objectively observe bicycling risk exposure and behaviors while bicycling. System data will be coded to measure bicycling exposure (hours, miles traveled, routes) and the types and rates of safety-relevant events (near crashes, crashes), and safety-relevant behaviors (e.g., following traffic rules, scanning for traffic at intersections). This will be the first randomized trial to use GPS and video technology to evaluate the effectiveness of a youth bicycle safety intervention in changing behavior. The control group will not receive any bicycle safety education programming. Participants in the first intervention group (Bike Club) will receive a 12-hour bicycle safety education program. Participants in the second intervention group (Bike Club Plus) will receive an enhanced version of the 12-hour bicycle safety education program which will include a parent training session on bicycling safety best practices, child development as it relates to bicycling, strategies for practice at home, and feedback on their adolescent's bicycling performance. The investigators' main hypotheses are that adolescents who receive the bicycle safety intervention will have increased safety behaviors (e.g., helmet use, hazard recognition), reduced errors (e.g., riding against traffic, swerving/wobbling), and increased knowledge, perceptions, and self-efficacy compared to the control group; and adolescents whose parent receives the parent training will have even greater improvements in study outcomes than those whose parents do not receive the training. If successful, approaches from this study could be widely implemented to improve adolescent bicycling safety.
Full description
Following consent process, the study protocol will go as follows:
Step 1. Initial meeting Baseline Survey: At the time of in-person assent/consent each dyad (parent and child) will complete a paper-based baseline survey (demographics, cycling and driving experience, etc). Participants will also be given the option to sign a video/audio release waiver that allows use of recordings obtained during the research to be used for educations purposes outside of the research study itself. Participants will be instructed to record trips (video/audio/GPS) only on public roads. A research assistant will be available to answer any questions about the study and/or survey. This is expected to take 20 minutes.
Instrumentation and data collection: Instructions and set-up of equipment (combined camera/GPS system and backup GPS system) will be done at an agreed upon time before the start of the first one-week data collection period. The combined camera/GPS system will be attached to the participant's bicycle handlebar using a mount supplied by the manufacturer. The backup GPS system will be attached to the handlebars, under the seat, or elsewhere on the bike frame. Participants will be instructed on how to turn the device on/off at the beginning and end of each ride. This setup and instruction is expected to take 30-45 minutes. Information manuals will be left with the participant during the study period for their reference. The research assistants will be available to participants via email, telephone, or in-person during the study period to provide technical assistance.
Step 2. Pre-intervention/Baseline riding data collection: Child participants will ride their bicycles as they normally would during the baseline 1-week observation period. No route or time will be specified. The camera/GPS will turn on automatically at the start of each ride and off again at the end of the ride. Participants will also be asked to keep a paper-based trip diary that includes a log of each trip, the trip purpose, the date, time of day, and any incidents that occur.
Step 3. Equipment and trip diary collection: During the time period between the consecutive data collection weeks, research staff will meet with participants to collect the trip diary and camera/GPS from the first observation period. Participants will be given a blank trip diary for use in the second observation period.
Step 4. Intervention delivery-- Bike Club [Applies to two intervention groups only]
Step 5. Post-intervention/Follow-up riding data collection: Child participants will ride their bicycles during the second one-week observation period. No route or time will be specified. The camera/GPS will turn on automatically at the start of each ride and off again at the end of the ride. Participants will also be asked to keep a paper-based trip diary that includes a log of each trip, the trip purpose, the date, time of day, comfort rating, and any incidents that occur.
Step 6. End of study meeting Follow-up surveys: Follow-up surveys will be administered to dyads (parent and child) during the last in-person meeting after the post-intervention one-week naturalistic data collection period.
The research team will also pick up the camera/GPS equipment and trip diary from the participants. At this meeting, participation in the study will be complete.
Step 7. All data collected will be downloaded from the devices (combined camera/gps system, backup GPS system, digital survey responses) and stored on a password-protected university hard drive accessible only to research personnel. Paper survey responses will be manually entered into a database stored on the same drive. Video obtained from the cameras will be used to examine roadway conditions, rider safety behaviors, and interactions with other road users. Videos will also be used to analyze safety-relevant events (crashes, near-crashes, etc.) that are identified by the participant or research personnel. Video recording is a required portion of the study. However, participants must opt in to allow the use of video for non-research educational purposes by signing the release form provided during the consent process. Videos will be retained for a minimum of 3 years with the rest of the project data.
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195 participants in 3 patient groups
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Central trial contact
Cara Hamann, PHD; Ryan Dusil, MS
Data sourced from clinicaltrials.gov
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