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Kathryn M. Parker, Jeanette Gustat, and Janet C. Rice

Background:

People are more physically active in neighborhoods that are well designed for walking and bicycling. Building infrastructure for safer cycling is one way to promote physical activity. On-road bike lanes are one type of infrastructure hypothesized to positively impact levels of cycling. The first on-street bike lane was painted in New Orleans, LA during the spring of 2008.

Methods:

In November of 2007 and again in November 2008, trained observers conducted manual counts of cyclists riding on St. Claude Avenue in New Orleans, LA. The data collected included the number of men, women, adults, and children riding a bicycle with traffic, against traffic, and on sidewalks.

Results:

Data showed a 57% increase in the average number of riders per day (P < .001). There was a 133% increase among adult female riders (P < .001) and a 44% increase among adult male riders (P < .001). The percentage of cyclists riding in the correct direction, with the flow of traffic, increased from 73% to 82% (P < .001).

Conclusions:

Bike lanes can have a positive impact in creating a healthy physical environment. Future research should include other streets for comparison purposes and surveys to determine whether riders are substituting biking for nonactive forms of transportation.

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Ariane L. Bedimo-Rung, Jeanette Gustat, Bradley J. Tompkins, Janet Rice, and Jessica Thomson

Background:

The study’s purpose is to describe the development and evaluate the reliability (inter-observer agreement) and validity (rater agreement with a gold standard) of a direct observation instrument to assess park characteristics that may be related to physical activity.

Methods:

A direct observation instrument of 181 items was developed based on a conceptual model consisting of the following domains: features, condition, access, esthetics, and safety. Fifteen pairs of observers were trained and sent to two parks simultaneously to assess two Target Areas each.

Results:

Overall domain reliability was 86.9%, and overall geographic area reliability was 87.5%. Overall domain validity was 78.7% and overall geographic area validity was 81.5%.

Conclusions:

Inter-rater reliability and validity were generally good, although validity was slightly lower than reliability. Objective items showed the highest reliability and validity. Items that are time-sensitive may need to be measured on multiple occasions, while items asking for subjective responses may require more supervised practice.

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Thomas A. Farley, Rebecca A. Meriwether, Erin T. Baker, Janet C. Rice, and Larry S. Webber

Background:

Promotion of physical activity in children depends on an understanding of how children use play equipment.

Methods:

We conducted observations over 2 years of children in 2nd through 8th grades in a schoolyard with 5 distinct play areas with different amounts of play equipment.

Results:

Children were more likely to play in areas with more installed play equipment, with densities of children in equipped areas 3.3 to 12.6 times higher than in an open grassy field. There were no significant differences by play area in the percent of children who were physically active at all, but children were more likely to be very active in areas with basketball goals and an installed play structure than in an open field.

Conclusions:

Playground equipment appeared to have a strong influence on where children played and a moderate influence on levels of activity. To maximize physical activity in children, playgrounds should be designed with ample and diverse play equipment.