Increasing Youth Physical Activity: Neighborhood Environment Influences

Obesity Clinical Trial

Official title:

Increasing Youth Physical Activity: Neighborhood Environment Influences

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT00853814
• Other study ID #: R01HD055270
• Secondary ID: 5R01HD055270-025
• Status: Recruiting
• Phase: N/A
• First received: February 26, 2009
• Last updated: February 27, 2009
• Start date: September 2007
• Est. completion date: September 2011

Study information

• Verified date: February 2009
• Source: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
• Contact: James N Roemmich, Ph.D.
• Phone: 716-829-3400
• Email: roemmich[@]buffalo.edu
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Interventional

Clinical Trial Summary

Increased access to highly reinforcing sedentary behaviors in the home such as TV and computers are associated with overweight in youth. Reducing these behaviors reduces overweight and prevents increases in overweight in youth who are at risk, likely by increasing physical activity and/or reducing energy intake. Reducing access to highly reinforcing sedentary activities frees-up time and youth must choose to reallocate their time between engaging in other, less reinforcing sedentary activities or physical activity. Neighborhood environments that provide easy access to reinforcing physical activities such as those at parks may result in greater increases in physical activity when access to highly reinforcing home sedentary behaviors is reduced. The investigators have found in 3 data sets of youth ranging in age from 4 to 16 years that the proportion of park and recreation area to residential area within ½ mile of the child's home parcel (park and recreation index) independently predicted the physical activity of youth. The investigators also found that increases in physical activity when access to sedentary behaviors were reduced for 3 weeks was related to park area within ½ mile of the child's home. The aim of this study is to decrease access to home sedentary behaviors for 4 months and determine if changes in physical activity habits are related to access to parks and recreation areas in the neighborhood environment. The investigators propose to study 128 sedentary overweight male and female 12-14 year-old youth recruited from parcels within Erie County, New York that have a high or low park and recreation index. Groups will be matched on racial/ethnic distribution and socioeconomic status. Subjects living at low and high park access parcels will then be equally randomized to groups that reduce targeted sedentary behavior (TV, computer use) time by 50% using TV Allowance devices placed on each TV/monitor in the home or a control group that has the same experimental experiences including TV Allowance devices placed on each TV/monitor, but programmed to not limit access to targeted sedentary behavior. Subjects will wear both accelerometers and wrist-watch-type global positioning systems to determine changes in the duration and intensity of physical activity in various parcel types, including parks. The investigators hypothesize differential responses in physical activity and the utilization of parks for physical activity. The group of youth that live at parcels with high access to parks and that incur a 50% reduction in sedentary behavior will have greater increases in physical activity, number of visits to parks and will accrue greater physical activity at parks than youth in the other 3 treatment groups. The investigators hypothesize that the alterations in physical activity will be mediated by parent modeling of physical activity and individual differences in the motivation to be physically active. The investigators hypothesize that there will be a main effect of reduction in access to sedentary behaviors on energy and fat intake and percent overweight.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: September 2011
• Est. primary completion date: September 2010
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 12 Years to 16 Years

Eligibility

Inclusion Criteria:

• Parent and child must wear an accelerometer and record their sedentary behaviors

• Youth must engage in at least 24 h/week of time in sedentary behaviors

• Youth should have no dietary or activity restrictions

• Youth and parents should have no psychopathology that would limit participation

• No contraindications to physical activity in either the parent or adolescent

Study Design

Allocation: Randomized, Intervention Model: Factorial Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Obesity
• Overweight

Intervention

Behavioral:
• Access to sedentary behaviors
Access to sedentary behaviors: Reduced access - reduce access to sedentary behaviors by 50% using TV Allowance technology. Usual access - monitoring only, no change in access to sedentary behaviors. Access to neighborhood parks: High access - large amount of park land very near to the child's home. Low access - little to no park land near the child's home.

Locations

Country	Name	City	State
United States	University at Buffalo	Buffalo	New York

Sponsors (1)

Lead Sponsor	Collaborator
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Physical activity		10 weeks	No
Secondary	Physical activity in parks		10 weeks	No
Secondary	Dietary intake		10 weeks	No
Secondary	BMI percentile		10 weeks	No