- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT00094211
Understanding the Impact of Neighborhood Type on Physical Activity in Older Adults
Neighborhood Impact on Physical Activity in Older Adults
연구 개요
상세 설명
BACKGROUND:
Despite the recognized benefits of regular physical activity for older adults, people over the age of 65 remain among the most inactive groups of the U.S. population. Efforts to understand the factors influencing physical activity in this important group have been limited primarily to demographic and psychosocial domains. The importance of the neighborhood environment in influencing a host of health, behavioral, and psychosocial outcomes has been recognized. However, to date, no systematic investigation of the relationship between objective and subjective environmental factors and objectively measured physical activity levels among older adults has been undertaken.
DESIGN NARRATIVE:
This observational study will investigate whether seniors living in neighborhoods conducive to walking are more physically active, after adjusting for socioeconomic status (SES), than those living in neighborhoods less conducive to walking or other forms of physical activity for transportation or recreational purposes. Additional questions of interest concern the moderating effects of physical function and the proportion of seniors living nearby on the relationship between environment and physical activity. The study will take advantage of the sampling, recruitment, and data collection methods of an ongoing NIH-funded research project aimed at integrating public health and urban planning frameworks in studying the impacts of environmental factors on physical activity levels in younger adults. Population-based sampling methods will be used to recruit adults over 65 years of age who are living in more walkable versus less walkable neighborhoods of varying SES levels. Participants will be recruited from Seattle, Washington (n = 600) and Baltimore, Maryland (n = 600). In addition to objectively measured physical environment (using geographic information systems {GIS}) and physical activity levels (using accelerometry), self-reported neighborhood environment, physical activity, and quality of life variables of particular relevance to older adults will be assessed twice during a 12-month period.
연구 유형
등록 (실제)
연락처 및 위치
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
Inclusion criteria:
- Currently living in an apartment, condo, house, or assisted living facility
- Able to walk more than 10 feet at a time
- Able to speak and read English
- Able to complete study surveys (with assistance if necessary)
Exclusion Criteria:
- Not currently living in one of the areas in which the study will take place
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
---|
Low Walkability/Low Income
Participants reside in a low walkability, low income neighborhood
|
Low Walkability/High Income
Participants reside in a low walkability, high income neighborhood
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High Walkability/Low Income
Participants reside in a high walkability, low income neighborhood
|
High Walkability/High Income
Participants reside in a high walkability, high income neighborhood
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
---|---|---|
Physical Environment Factors Using Geographic Information Systems [GIS]
기간: at two time points, 6 months apart, which were averaged
|
Physical environment factors measured using GIS-derived measures of street connectivity, residential density, and mixed land use in participant block groups and a network buffer around each participant's home.
A walkability index was created for a 500 meter street network buffer around participant homes.
The walkability index was calculated for each census block group in the regions by summing the z-scores of four macro built environment measures: 1) net residential density, 2) intersection density, 3) retail floor to land area ratio (FAR), and 4) mixed use.
A higher scores indicates higher walkability.
The minimum value is -4.08 and the maximum value is 12.5.
|
at two time points, 6 months apart, which were averaged
|
Community Healthy Activities Model Program for Seniors (CHAMPS) Self-reported Walking for Errands
기간: Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
A self-report physical activity questionnaire that assesses weekly frequency and duration of various activities typically undertaken by midlife and older adults over the prior 4-week period.
Self-reported walking for errands is one physical activity item assessed.
The measure has been shown to have good test-retest reliability (stability) and construct and concurrent validity, and has been shown to be sensitive to change in a variety of adult populations.
It has seven frequency categories (from less than 1 hour a week to 9 or more hours per week).
The minimum value is 0 and the maximal value is variable.
(See Stewart AL, Mills KM, King AC, et al.
CHAMPS Physical Activity Questionnaire for Older Adults: Outcomes for Interventions.
Med Sci Sports Exerc, 33:7, 1126-1141, 2001.)
|
Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
Accelerometer Measured Physical Activity
기간: Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
Ambulatory assessment of moderate-to-vigorous physical activity using a validated Actigraph accelerometer.
Participants were instructed to wear the accelerometer during waking hours for seven days at each of the two measurement points.
The accelerometer was placed over the right hip.
Data were cleaned and scored using MeterPlus version 4.0 software.
|
Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
Neighborhood Environment for Walkability Survey (NEWS) - Walking and Cycling Facilities in Neighborhood
기간: Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
The scale is walking/cycling facilities which is a mean of 5 items.
The minimum value is 1 and the maximum value is 4. Higher scores indicate an environment that is supportive of walking and cycling which is a better outcome.
|
Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
Neighborhood Environment for Walkability Survey (NEWS) - Land Use Mix Access
기간: Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
The scale is land use mix access which is a mean of 7 items.
The minimum value is 1 and the maximum value is 4. Higher scores indicate easier access to services which is indicative of a high walkability environment (i.e., a better outcome).
|
Assessment at baseline and 6 months, with the data across these two time points averaged to increase outcome stability.
|
공동 작업자 및 조사자
수사관
- 수석 연구원: Abby King, Stanford University
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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