Open AccessD-25 Free Communication/Poster - Physical Activity Correlates
Author(s) -
AUTHOR_ID
Publication year - 2014
Publication title -
medicine and science in sports and exercise
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.703
H-Index - 224
eISSN - 1530-0315
pISSN - 0195-9131
DOI - 10.1249/01.mss.0000451195.95521.a2
Subject(s) - rankl , medicine , bone remodeling , n terminal telopeptide , jumping , endocrinology , alkaline phosphatase , plyometrics , osteocalcin , physical therapy , activator (genetics) , receptor , physiology , chemistry , biochemistry , jump , physics , quantum mechanics , enzyme
D-25 Free Communication/Poster: Physical Activity Correlates.PURPOSE: To investigate the association of objectively-assessed physical
environment with physical activity behaviors measured by the International Physical
Activity Questionnaire (IPAQ) - short form for Chinese adults in Hong Kong.
METHODS: A total of 1,075 adults (261 men and 814 women) were recruited.
Their physical activity behaviors, i.e., walking, moderate (MPA), and vigorous
physical activity (VPA), were self-reported by using the IPAQ short form. Physical
environment in the neighborhood within an 800 meter crow-fl y radius of each
participant’s residential address was assessed by Geographic Information System
(GIS). These variables included nearest distance (both crow-fl y and network) to
parks and recreational destinations, street intersections density, road length, and
percent of bicycle track area. Social-demographic variables (gender, age, and
educational attainment) were also self-reported. Area-level socio-economic status
(SES) was determined by the median household income. The associations of physical
environment variables with the three PA variables were determined by using linear
mixed models, adjusting for socio-demographic variables and area-level SES. The
three PA variables were square root transformed prior to regression analyses.
RESULTS: Men self-reported two times greater in MET-minutes/week of VPA,
but less MET-minutes/week of walking, than women. Educational attainment was
negatively associated with the three PA variables. Signifi cant interaction effects of
gender were found. After controlling for socio-demographic variables and area-level
SES, nearest crow-fl y distance to a park area was positively associated with METminutes/
week of MPA only for men (β=0.50, 95% CI: 0.21, 0.79). For women, nearest
crow-fl y distance to recreational destinations is negatively related to MET-minutes/
week of walking (β=-0.71, 95% CI: -1.32, -0.09). No environmental attributes were
found to be associated with VPA. CONCLUSIONS: The results suggest that the relationship between neighborhood
environmental attributes and PA differed by gender and PA domains. Development
of PA promotion strategies and policy within the context of Hong Kong should target
people with low educational attainment and be gender-specifi c