A study recently released by Prevention magazine and the American Podiatric Medical Association ranks Honolulu among the nation's top 10 walking cities.

Cambridge, Mass., was named as the "Best Walking City in America," with more residents walking to work and more parks per square mile than any other city evaluated, according to the study. New York and Ann Arbor were listed as second and third, respectively. Honolulu took the No. 7 spot.

Among the worst walking cities: Oklahoma City, North Las Vegas, and Gadsden, Ala., according to the study, which will be detailed in April's Prevention magazine.

Prevention and the APMA annually team up to measure the walkability of America's cities as interest in walking for fitness remains strong. Walking is the most popular form of exercise with an estimated 87.5 percent of Americans walking for fitness.

New in this year's survey, more than 500 U.S. cities, including the District of Columbia, were evaluated and ranked on 14 walking criteria, including the percentage of adults who walk to work, number of parks per square mile, use of mass transit and percentage of adults who walk for fitness.