Original Research Journal of Physical Activity and Health, 2010, 7, 423-431 © 2010 Human Kinetics, Inc. Associations Between Intrapersonal and Neighborhood Environmental Characteristics and Cycling for Transport and Recreation in Adults: Baseline Results From the RESIDE Study Sylvia Titze, Billie Giles-Corti, Matthew W. Knuiman, Terri J. Pikora, Anna Timperio, Fiona C. Bull, and Kimberly van Niel Background: This study investigated the relationship between individual and neighborhood environmental factors and cycling for transport and for recreation among adults living in Perth, Western Australia. Methods: Baseline cross-sectional data from 1813 participants (40.5% male; age range 18 to 78 years) in the RESIDential Environment (RESIDE) project were analyzed. The questionnaire included information on cycling behavior and on cycling-specific individual, social environmental, and neighborhood environmental attributes. Cycling for transport and recreation were dichotomized as whether or not individuals cycled in a usual week. Results: Among the individual factors, positive attitudes toward cycling and perceived behavioral control increased the odds of cycling for transport and for recreation. Among the neighborhood environmental attributes, leafy and attractive neighborhoods, access to bicycle/walking paths, the presence of traffic slowing devices and having many 4-way street intersections were positively associated with cycling for transport. Many alternative routes in the local area increased the odds of cycling for recreation. Conclusions: Effective strategies for increasing cycling (particularly cycling for transport) may include incorporating supportive environments such as creating leafy and attractive neighborhood surroundings, low traffic speed, and increased street connectivity, in addition to campaigns aimed at strengthening positive attitudes and confidence to cycle. Keywords: bicycling, built environment, ecological model, public health Numerous studies have established that moderateintensity physical activity enhances physical and mental well-being.1–3 In most Western countries, however, sedentariness continues to be a public health problem4,5 and strategies to promote and maintain regular physical activity remain a public health priority. Several studies have shown that cycling for transport is a physiologically effective physical activity behavior to improve cardiorespiratory function.6–8 Furthermore, cycling for transport has been shown to produce positive health outcomes. Among a Danish population cycling to work was associated with a reduced relative risk for all-cause mortality of 0.729 and a meta-analytic review3 showed that active transport (walking and cycling) was Titze is with the Dept of Physical Activity and Health, Institute of Sport Science, Graz, Austria. Giles-Corti is with the Centre for the Built Environment and Health, University of Western Australia, Perth, Australia. Knuiman, Pikora, and Bull are with the School of Population Health, University of Western Australia, Perth, Australia. Timperio is with the Centre for Physical Activity & Nutrition Research, Deakin University, Burwood, Australia. van Niel is with the School of Earth and Geographical Sciences, University of Western Australia, Perth, Australia. associated with an overall 11% reduction in cardiovascular risk. Based on the compendium by Ainsworth and colleagues10 cycling for recreation meets at least the moderate-intensity level of physical activity and is thus also likely to be beneficial for function and health. To successfully promote cycling for transport and recreation at the population level it is necessary to identify the specific modifiable factors that are related to cycling behavior. Over the past decade studies have investigated the effect of the built environment on physical activity in general, on walking only, or on walking and cycling in combination.11–13 One study tested the association between neighborhood features and transportation- and recreation-based activity.14 It found that activities for transportation and recreation were associated with different environmental characteristics. The authors concluded that the physical environment may affect transportation activity more so than recreational physical activity. There is a paucity of publications whether this is also true for cycling for transport and recreation. Several authors highlight that the capacity to predict a behavior is enhanced when there is correspondence between a specific behavior outcome measure and the environmental variables hypothesized to be associated with that particular behavior.15–17 Despite 423 424 Titze et al this recommendation few studies have simultaneously assessed intrapersonal and built-environment factors and their association with specific physical activity behaviors. This study used constructs of the Theory of Planned Behavior18 and the Social Cognitive Theory19 specifically worded for cycling. These constructs predicted cycling and physical activity behavior20,21 in previous studies The selected built environmental attributes, are based on a framework by Pikora16 which was specifically developed for walking and cycling for transport and recreation and on the Neighborhood Environment Walkability Scale (NEWS)22 which is to date among the best developed questionnaire to assess the local environment. This paper investigated the relationship of perceived neighborhood environmental attributes and intrapersonal factors to cycling for transport and recreation among adults living in Perth, Western Australia. We hypothesized that intrapersonal and built environmental characteristics would be related to both transportation and recreational cycling, and that different built environmental factors would be related to the different types of cycling. Methods Sample and Procedure Participants were 1813 adults (age range 18 to 78 years) who participated in the baseline survey of RESIDE, a quasi-experimental 5-year longitudinal study. The study protocol was approved by the Human Research Ethics Committee at The University of Western Australia and all participants provided written consent. The study design and selection of participants has been reported elsewhere.23 Briefly, from September 2003, Perth residents who were building new houses in 74 new developments and planned to move into them by December 2005 were eligible for inclusion in the study. Both telephone and postal recruitment strategies were used and 1 person from each household was selected randomly to participate. Response rate was 33.4%. Sociodemographic Variables Among other sociodemographic variables participants self-reported gender, age (year of birth), education (8 brackets), and availability of motor vehicle with 4 answering options: yes, always; yes, sometimes; no; do not drive. Intrapersonal Attributes Seven major psychosocial constructs related to cycling were included in the questionnaire: attitude, perceived behavioral control, self-efficacy, enjoyment, behavioral skills, family support, and friend support. Because the questions about self-efficacy, enjoyment, behavioral skills, family and friend support were only relevant for cyclists (eg, “Went cycling with my friends” or “When I cycle in my neighborhood I enjoy it”), we only included attitude toward cycling and perceived behavioral control in the multivariate model. Both constructs were scored on a 7-point rating scale. Attitude was assessed by: “Regardless of whether you succeed or fail, would you say that going through the actual process of trying to cycle for recreation or transport on most days in your neighborhood in the next month, would be: pleasant-unpleasant, easy-difficult, positive-negative. Cronbach’s alpha for the attitude scale was 0.91. Perceived behavioral control for cycling was assessed by 1 question: “Assuming that you tried to walk or cycle for recreation or transport on most days in your neighborhood in the next month, how likely is it that you would actually stick to regular cycling? In the dichotomization process negative to neutral categories were compiled vs. positive categories. The questions were used in a previous study24 but were specifically worded for cycling in this study. Neighborhood Characteristics Out of all questions of the Neighborhood Environment Walkability Scale (NEWS) 19 environmental variables would have been eligible for the inclusion into the multivariate logistic regression model. These were land use mix-access (based on NEWS),25 neighborhood surroundings (ie, aesthetics), perceived traffic volume, and perceived neighborhood crime (all based on NEWS-A).25 Cronbach’s alpha for all scales except the perceived traffic volume scale (α = 0.61) were above 0.74 indicating good internal consistency. The reproduction of the NEWS-scales “street connectivity” failed because of low Cronbach`s alpha (α = 0.21).26 Therefore the items for this proposed scale were included as single items in subsequent analyses. The model’s single items were: access to bicycle or walking paths, number of destinations for transport cycling (eg, local shops, post office, video outlet, job etc.), number of destinations for recreational cycling (eg, natural bushland, sports field, beach etc.), presence of many traffic slowing devices, presence of many 4-way intersections, presence of many alternative routes for getting from place to place when walking, presence of major barriers to walking (eg, freeways, major roads), car parking access in local shopping areas, streets do not have many cul-de-sacs, presence of hilly streets, slow traffic speed on most nearby streets, busy streets have pedestrian crossings and traffic lights, streets are well lit at night, presence of walkways that connect culde-sacs, and usually short distance between intersections. All characteristics were assessed on a 5-point rating scale (strongly disagree, disagree, neither agree or disagree, agree, strongly disagree plus the option “does not apply to me”). The variables were dichotomized into negative to neutral categories vs. the positive categories. Cycling Behavior Measures Participants were asked how many times they cycled as a mode of transport over a usual week within (within a 10 to 15 minute walk of their home) and outside their Bicycling for Transport and Recreation 425 neighborhood. The same questions were asked with respect to cycling for recreation. Cycling behavior within and outside the neighborhood was combined and finally, participants were dichotomized according to whether or not they cycled for transport/ cycled for recreation over a usual week. Statistical Analysis Analyses were carried out using SPSS 15.0 software in 2007. Principal components analysis was used to test the internal consistency of the neighborhood environmental and the intrapersonal constructs. All independent variables were dichotomized as shown in Table 1. Pearson chi-square tests were used to examine the association between cycling and each independent variable. All variables with p-values ≤ 0.10 were included into the logistic regression analyses (to protect against potential type II error and to avoid overfitting). Logistic regression modeling involved forced entry of gender, age (4 categories), and education (3 categories) in the first block. In the second block, a stepwise backward elimination procedure was used to identify the significant and independent individual and environmental predictors of cycling for transport and cycling for recreation, respectively. Due to missing values (eg, destinations for transport cycling has 139 missing values) the logistic regression model of cycling for transport included 1653 participants and the model of cycling for recreation 1656 participants. Variables with P < .05 remained in the final model. We also tested for interactions between gender and the other independent variables as well as between age and the other independent variables but as only one out of the many interactions tested reached statistical significance it could easily have arisen by chance and so we have not made specific mention of this interaction. Results Among those who answered the transport cycling questions (N = 1795) 105 (5.8%) participants cycled for transport. Among those who answered the recreational cycling question (N = 1798) 175 (9.7%) cycled for recreation. In a usual week the median of the cycling frequency inside the neighborhood is 1 for both groups. Sixty eight cyclists cycled for transport and for recreational purposes. Table 1 shows the frequency distributions for those variables that were associated (P ≤ .10) with cycling in the bivariate analyses and were therefore entered into the logistic regression models. The study sample included more women (58.5%) than men, the average age was 40 years (SD = 11.9 years), and about 40% of the study participants had secondary high school education or less. Given the large amount of suburban sprawl in Perth, almost 93% of the study participants reported always having access to a motor vehicle. Two-thirds of the participants had a positive attitude toward cycling but only one-third perceived it likely that they would cycle under current circumstances. Furthermore, two-thirds of the participants agreed that the neighborhood provides good access to services, that the neighborhood surroundings were leafy and attractive, that there was access to cycling/walking paths, and that the traffic volume was low. About one-half perceived more than 6 businesses and more than 2 recreation facilities within 10 to 15 min walking distance of their home. Twofifths perceived there were many traffic slowing devices present. About one-third agreed that they had many 4-way intersections in the local area and 70% agreed that there are many alternative routes for getting from place-toplace. Most perceived few major barriers to walking in their neighborhood and more than two-thirds perceived cul-de-sacs in their neighborhood. Table 2 shows the odds ratios for demographic variables and the adjusted odds ratios for intrapersonal and neighborhood-environment characteristics of cycling for transport and recreation compared with noncycling. Being a woman decreased the odds of cycling for transportation and being older than 30 years increased the odds of cycling for recreation. Education was not associated with cycling for transport. Having a car permanently available, decreased the odds of cycling for transport and for recreation compared with the category “never/sometimes, don’t drive.” Among the intrapersonal attributes a positive attitude toward cycling as well as perceived behavioral control for cycling substantially increased the odds of cycling compared with a negative or neutral attitude and a low perceived behavioral control, respectively. Among the neighborhood-environment characteristics, a leafy and attractive neighborhood, access to bicycle or walking paths, the presence of traffic slowing devices and having many 4-way street intersections all significantly increased the odds of cycling for transport compared with a low level of these attributes. The perception of alternative routes for getting from place-to-place significantly increased the odds of cycling for recreation compared with low perceived prevalence of alternative routes. Discussion In Perth Western Australia, cycling for transport was associated with gender, 2 intrapersonal (attitude toward and behavioral control for cycling), and 4 environmental characteristics (neighborhood surroundings leafy and attractive, access to bicycle/walking paths, presence of many slowing devices, presence of many 4-way intersections). However, for recreational cycling, only 1 environmental characteristic was significant (ie, the presence of many alternative routes). Consistent with earlier conceptual frameworks16 there were differences in the association between the environmental characteristics and the 2 cycling behaviors. This could be due to the scale at which the environment was assessed (ie, local neighborhood or a 15 minute walk Table 1 Distribution of Sociodemographic Characteristics, Intraindividual, and Neighborhood Environmental Attributes Which Were Entered Into the Final Logistic Regression Model (N = 1656) Characteristics Gender Men Women Age (years) ≤29 30–40 41–55 56+ Education Secondary level or less Trade/apprenticeship/certificate Bachelor or higher Car availability Never/sometimes/don’t drive Always Attitude toward cycling Negative to neutral Positive Perceived behavioral control for cycling Unlikely to neutral Likely Access to services (land use mix-access)* Disagree to neutral Agree Neighborhood surroundings green and attractive Disagree to neutral Agree Bicycle/walking paths accessible Disagree to neutral Agree Traffic volume High Low Number of destinations for transport cycling 0–6 destinations >6 destinations Number of destinations for recreational cycling 0–2 destinations >2 destinations Many traffic slowing devices* Disagree to neutral Agree Presence of many 4-way intersections Low to neutral High Presence of many alternative routes Low to neutral High Major barriers in local area High Low to neutral Car parking is difficult* Difficult to neutral Not difficult Absence of cul-de-sacs* Disagree to neutral Agree Note. Percentages do not always add up to 100% because of rounding errors. * Based on N = 1653. 426 Total % 41.5 58.5 20.7 37.9 28.7 12.7 38.7 37.4 24.0 7.2 92.8 32.3 67.7 67.6 32.4 34.6 65.4 31.6 68.4 33.4 66.6 35.5 64.5 52.5 47.5 50.2 49.8 59.3 40.7 70.2 29.8 29.4 70.6 17.8 82.2 14.3 85.7 72.1 27.9 Table 2 Adjusted Odds Ratios (Cyclists vs. Noncyclists) for Individual and Neighborhood Environmental Characteristics for Cycling for Transport (N = 1653) and for Cycling for Recreation (N = 1656) Cycling for transport Variable OR Cycling for recreation 95% CI P OR 0.30–0.76 0.002 0.74 95% CI P 0.51–1.06 0.104 Gender Men 1.00 Women 0.48 1.00 Age (years) ≤29 1.00 0.021 1.00 30-40 1.37 0.78–2.43 0.277 2.08 1.22–3.55 0.007 41-55 0.58 0.29–1.15 0.117 1.73 0.98–3.04 0.058 56+ 0.67 0.26–1.70 0.396 2.12 1.06–4.24 0.034 0.370 1.00 0.051 Education Secondary level or less 1.00 0.149 Trade/apprenticeship/certificate 1.38 0.82–2.33 0.220 1.10 0.74–1.65 0.646 Bachelor or higher 1.01 0.55–1.85 0.981 0.68 0.41–1.13 0.136 0.26–0.86 0.014 1.76–6.94 <0.001 7.73 5.06–11.79 <0.001 1.00 1.72 1.11–2.67 0.016 Car availability Never/sometimes/don’t drive 1.00 Always 0.27 1.00 0.14–0.52 <0.001 0.47 Attitude toward cycling Negative or neutral 1.00 Positive 3.07 1.00 1.28–7.39 0.012 3.72–10.60 <0.001 1.11–3.49 0.021 1.01–3.08 0.045 1.04–2.55 0.033 1.12–2.76 0.014 3.50 Perceived behavioral control for cycling Unlikely to neutral 1.00 Likely 6.28 1.00 Neighborhood surroundings leafy and attractive Disagree to neutral 1.00 Agree 1.97 Bicycle/walking paths accessible Disagree to neutral 1.00 Agree 1.77 Presence of many traffic slowing devices Disagree to neutral 1.00 Agree 1.63 Presence of many 4-way intersections Low to neutral 1.00 High 1.76 Presence of many alternative routes Low to neutral High 427 428 Titze et al from home) and possibly that the local environment is less important for recreational cyclists. However, additional analyses (not reported) showed that the majority of recreational cyclists cycled within the neighborhood (62%) and only 13% cycled exclusively outside the neighborhood. It is possible that respondents could not differentiate between local neighborhood (10 to 15 min walk) and outside the neighborhood. However, more likely, there are different correlates for the recreational and cycling-related behaviors and, as with walking27 the behaviors should be studied separately.15 In our sample 5.8% of participants cycled at least once each week for transport and 9.7% for recreation. This result is comparable with the 2006 Western Australian Adult Physical Activity Survey (ie, 3.8% and 9.3%, respectively).28 but lower than the prevalence of transport cycling reported in other countries (eg, Canada, 7.9%29; Denmark 18%; the Netherlands, 27%).30 In countries with a low modal share of cycling, men are consistently more likely to cycle for transport and recreation than women,31,32 findings consistent with our own. However, in places with higher modal shares of cycling (eg, Denmark and the Netherlands) there is almost no difference in the prevalence of female and male cyclists.33 In Denmark, women take 45% of all bike trips and 55% in the Netherlands.30 Similarly, in Graz, a midsized Austrian city (250,000 inhabitants, cycling modal split 14%) there was no gender difference in the prevalence of adult transport cyclists.34 The model showed a positive association between age and recreational cycling. From a biological point of view, cycling is an activity that can be easily performed by older individuals. Furthermore, older retired people have more time for recreational cycling. In contrast, a U.S. study found younger age to be positively associated with the use of a community rail-trail32 and the participants of a mass community cycling event in Sydney (Australia) were mostly younger than 50 years of age.35 As recreational cycling can range from being a member of a cycling club36 to relaxed sightseeing, more research is needed to examine the influence of age on participation in different forms of recreational cycling. Our findings showed that permanent availability of a car is negatively associated with bicycle use. In contrast, in a U.S. study37 the proportion of people owning 1 or more cars was higher for cyclists than for noncyclists. With rising fuel prices, it is possible that in the future, motor vehicle ownership may be less influential. Overall, the pattern of associations between sociodemographic variables and cycling for transport and recreation appears inconsistent in the literature, perhaps due to differences in the measures of cycling behavior and sociodemographic variables. There may also be culturally dependent differences (eg, social norms related to transport cycling) in these relationships, thus the location of studies may be important. Our final models did not adjust for the participants’ physical activity level. A separate analysis additionally adjusted for physical activity (physically active <30 min vs. ≥30 min) showed no effect. In this present study the bicycling infrastructure, namely access to bicycle and walking paths, was positively associated with transport cycling. This finding is congruent with other investigations.31,38 Pucher and Buehler30 argued that in Germany, the Netherlands and Denmark the high level of cycling is—among other factors—due to the expansion of the bikeway network. They concluded that an improvement of the cycling infrastructure is a major approach to increase cycling participation levels. Having a positive attitude and perceived behavioral control toward cycling was positively related with transport and recreational cycling. This result is congruent with the Theory of Planned Behavior and has been shown consistently with other healthrelated behaviors39 and with specific physical activity behaviors such as swimming, aerobics, and cycling.20 One implication of this result is that cycling promotion should include both personal messages about the positive aspects of cycling and the ease of adopting cycling behavior. However, to be effective, efforts to develop bicycle-friendly environments would increase confidence of new cyclists and assist in maintaining the behavior once adopted. Our study suggest that green and attractive environments are positively associated with cycling for transport. These environmental characteristics were derived from the NEWS22 which has been mostly applied for walking rather than cycling behavior. In a study among Belgian and Portuguese adults an aesthetic environment was not associated with either cycling or walking for transport.40 Among Dutch adults a positive relationship was found between the presence of sports grounds in the neighborhood (defined as a 300-m radius around the postal codes of participants) and recreational cycling as well as between parks and sport grounds in the neighborhood (300-m radius) and cycling for transport.41 However, the authors argued that it is very likely that these results reflect the association of living in the outskirts of town where recreational cycling is more likely and public open space is present, rather than the presence of a sport grounds or parks close to home per se. In Austria attractiveness was associated with irregular cycling among students but not with regular cycling among adults.34,42 Apart from the different instruments which were applied in these studies one possible reason for inconsistent results may be the way how attractiveness is measured. In the current study “the attractiveness of the neighborhood” was assessed, while in the Austrian studies “the attractiveness along the commuting route” was rated by the study participants. Future efforts to develop a NEWS-like scale for cycling may wish to consider the cycling route, rather than the local neighborhood as the ‘scale’ at which perceptions are measured. Bicycling for Transport and Recreation 429 We found that the presence of many traffic-calming devices was positively associated with cycling for transport. Morrison and colleagues43 studied the effect of a neighborhood traffic-calming scheme on walking and cycling in the main road of a deprived urban housing estate in Glasgow, Scotland. After the installation of the new scheme respondents said that they would allow children to cycle more in the neighborhood. We are not aware of other studies reporting results about the effects of traffic-calming devices on walking and cycling, but these types of studies are warranted. We also found that the presence of 4-way intersections was positively related with cycling for transport. With respect to the NEWS this characteristic is part of the street connectivity factor,25 because many 4-way intersections allow a more direct route to the destination. The positive effect of a direct route on cycling for transportation has also been found in other studies conducted in Austria, Canada, and U.S.42,44,45 Another street connectivity item, namely the presence of many alternative routes, was positively associated with recreational cycling. This result is supported by another Australian study conducted in Melbourne.46 The perceived presence of many alternative routes might indicate that people perceive a choice of possible routes for recreational cycling. The choice of different routes might also include a choice between different trip lengths and different grades along the route. It is assumed that a variety of routes make recreational cycling attractive. Our study has a number of limitations and strengths. Although causality cannot be implied from the crosssectional data, the results help to better understand both the intrapersonal and neighborhood environmental characteristics that may be associated with different kinds of cycling behavior. Self-reported data were used for the assessment of transport and recreational bicycling and related characteristics. Especially with respect to measuring physical activity behavior there is a tendency for over-reporting47 which might weaken the associations with the independent variables. In our study we combined cycling in- and outside the neighborhood although participants were only asked about the perception of the local neighborhood. Although the analyses showed that the majority cycled from home the results do not allow us to answer questions about the effect of the environment outside the local neighborhood. Another limitation is the relatively low proportion of cyclists. As a consequence we were only able to analyze factors associated with any cycling and not factors associated with amount of cycling which might differ. However, with a total sample size of about 1600, our study did have adequate statistical power (more than 90%) to detect factors associated any cycling that had odds ratios of 2 or greater. Another consequence of the low prevalence of cycling is that our findings therefore may not generalize to populations and environments where cycling is more common. Authors of another Australian study faced the problem of low proportion of transport cyclists,46 and this problem is likely to be relevant for most North American and British studies given the low prevalence of cycling in these countries. In our study we relied on people’s perception of the environment on the basis that perception is also important in influencing behavior. The objective assessment of the environment applying the methodology of Geographic Information Systems or auditing would be useful to include area level factors into the model. At the time of writing these data were not available. Due to the wording of the questions related to the social environment it was not possible to include these characteristics into our model as they were only relevant to cyclists. Social Cognitive Theory and the Theory of Planned Behavior suggest that the social environment affects the physical activity behavior. The inclusion of the social environmental characteristics is important and is warranted in future studies because of the likely impact on the other independent variables on cycling. Despite the limitations, this study has a number of strengths. First we had a substantially large populationbased sample of adults with prevalences of cycling comparable to estimates from a recent statewide survey27 Second, we applied behavior-specific questions, which we have previously recommended 15 to improve the capacity to predict a behavior. Third, we differentiated between cycling for transport and recreation. Fourth, the questions about the intrapersonal and built-environmental characteristics were based on health behavior theories (eg, Theory of Planned Behavior), on a theoretical framework for the assessment of the environmental determinants of walking and cycling,16 and on the well tested NEWS.25 This approach is consistent with an ecological model which for more than a decade, has been recommended for physical activity research.48 Conclusions The findings suggest that several intrapersonal and neighborhood environment variables may affect cycling for transport and recreation, different neighborhood characteristics are associated with cycling for transport and for recreation, and the built environment may be more important for cycling for transport. The results suggest that creating cycling-friendly environments that include cycling paths, are attractive, with low traffic speed, with connected street networks, and strengthening individuals’ positive attitudes and confidence to cycling, may increase the effectiveness of transport-related physical activity promotion strategies. Acknowledgments Funding from the Western Australian Health Promotion Foundation (Healthway) is gratefully acknowledged (Grant No. 11828). The University of Graz financially supported the first author. The second author is supported by a NHMRC Senior Research Fellowship (#503712) and the fifth, by a VicHealth Public Health Fellowship (2004 0536). We thank Pekka Oja for the helpful comments to the manuscript. 430 Titze et al References 1. Pate RR, Prat M, Blair SN, et al. Physical activity and public health: a recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. JAMA. 1995;273:402–407. 2. 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