Reaching out to promote physical activity in Australia: a statewide randomized controlled trial of a stage-targeted intervention. Population-based randomized controlled trial of a stage-targeted physical activity intervention. Promoting physical activity in a low-income multiethnic district: effects of a community intervention study to reduce risk factors for type 2 diabetes and cardiovascular disease: a community intervention reducing inactivity. Move to Improve: a randomized workplace trial to increase physical activity. The Newcastle exercise project: a randomised controlled trial of methods to promote physical activity in primary care. Promotion of physical activity among high-school girls: a randomized controlled trial. A randomized controlled trial evaluating the impact of knowledge translation and exchange strategies. Effect of community health education on physical activity knowledge, attitudes, and behavior. The Stanford Five-City Project. A multilevel ecological approach to promoting walking in rural communities. A randomized trial of a multifaceted intervention to reduce falls among community-dwelling adults. Outcomes of a field trial to improve children's dietary patterns and physical activity. The Child and Adolescent Trial for Cardiovascular Health. CATCH collaborative group. Effectiveness of telephone support in increasing physical activity levels in primary care patients. Promoting physical activity in middle school girls: Trial of Activity for Adolescent Girls. Effects of "10,000 steps Ghent": a whole-community intervention. Impact of Promoting Lifestyle Activity for Youth (PLAY) on children's physical activity. Development and exploratory cluster-randomised opportunistic trial of a theory-based intervention to enhance physical activity among adolescents. Girls on the move program to increase physical activity participation. Promoting physical activity in general practice: a controlled trial of written advice and information materials.
This study examined the broader use of a print-media intervention, which was previously shown to be effective at promoting physical activity to participants recruited from a regional Australian community, as a strategy suitable for a more diverse statewide population sample.
                Participants were randomly selected adults who responded to a telephone interview conducted by the New South Wales Health Department and consented to participate in a randomized controlled trial. Consenters were allocated to either intervention (n = 361) or control (n = 358) conditions. The intervention, a personalized letter plus stage-targeted booklets, was sent 1 week postbaseline. Data were collected via telephone interview at baseline and 2 and 8 months and were analyzed using repeated measures analysis of variance (ANOVA) and chi2 statistics.
                The groups were similar at baseline (mean age 43 +/- 3 years; 64% women). Process evaluation showed high intervention recall (76% at 2 months) and high follow-up response rates (> 85% at 8 months) were achieved. Nonsignificant increases in physical activity were observed (F1,719 = 2.18, p = .14).
                A single mailing of stage-targeted print materials was not effective in promoting increases in physical activity among participants selected from the statewide population. Future research could examine how the effectiveness of print media might be enhanced, possibly by using supplementary media, community-based prompts, or other incentives. Intervention trials with self-selected participants have shown that mailed stage-targeted print materials can increase participation in physical activity in the short term. We examined the effects of a mailed stage-targeted print intervention designed to promote physical activity, in a random sample of adults living in a regional city.
                Participants (n = 462, 40-60 years of age) were randomly allocated to an intervention (n = 227) or control group (n = 235). Measures included validated 2-week physical activity recall and stage of motivational readiness for physical activity. The intervention consisted of a single mailing of a letter and full-color stage-targeted booklets (specific to precontemplation, contemplation, preparation, and action/maintenance) 1 week postbaseline. Follow-up interviews were conducted at 2 and 6 months postbaseline.
                After 2 months, participants in the intervention group were significantly more likely to meet the current American College of Sports Medicine/Centers for Disease Control and Prevention recommendation for sufficient physical activity than those in the control group (adjusted odds ratio [OR] = 2.40; 95% confidence interval [CI] = 1.44-3.99). After 6 months, intervention participants who reported receiving and reading the intervention materials were significantly more likely to be meeting the sufficient physical activity criterion compared with the control group (adjusted OR = 2.03; 95% CI = 1.16-3.56).
                The stage-targeted print intervention was effective in promoting short-term increases in physical activity and was most effective for participants who recognized and used the materials. This low-cost, generalizable intervention has demonstrated potential as a practical population-based physical activity promotion strategy. Further research is required before widespread dissemination would be justified, as additional strategies may be required to ensure sustained change. The aim was to assess the net effects on risk factors for type 2 diabetes and cardiovascular disease of a community-based 3-year intervention to increase physical activity.
                A pseudo-experimental cohort design was used to compare changes in risk factors from an intervention and a control district with similar socioeconomic status in Oslo, Norway, using a baseline investigation of 2,950 30- to 67-year-old participants and a follow-up investigation of 1,776 (67% of those eligible, 56% women, 18% non-Western immigrants) participants. A set of theory-based activities to promote physical activity were implemented and tailored toward groups with different psychosocial readiness for change. All results reported are net changes (the difference between changes in the intervention and control districts). At both surveys, the nonfasting serum levels of lipids and glucose were adjusted for time since last meal.
                The increase in physical activity measured by two self-reported questionnaires was 9.5% (P = 0.008) and 8.1% (P = 0.02), respectively. The proportion who increased their body mass was 14.2% lower in the intervention district (P < 0.001), implying a 50% relative reduction compared with the control district, and was lower across subgroups. Beneficial effects were seen for triglyceride levels (0.16 mmol/l [95% CI 0.06-0.25], P = 0.002), cholesterol-to-HDL cholesterol ratio (0.12 [0.03-0.20], P = 0.007), systolic blood pressure (3.6 mmHg [2.2-4.8], P < 0.001), and for men also in glucose levels (0.35 mmol/l [0.03-0.67], P = 0.03). The net proportion who were quitting smoking was 2.9% (0.1-5.7, P = 0.043).
                Through a theory-driven, low-cost, population-based intervention program, we observed an increase in physical activity levels, reduced weight gain, and beneficial changes in other risk factors for type 2 diabetes and cardiovascular disease. Workplaces are important settings for interventions to increase physical activity, but effects have been modest.
                To evaluate the efficacy of Move to Improve, a social-ecologic intervention delivered at the workplace to increase leisure-time physical activity.
                A group-randomized 12-week intervention consisting of organizational action and personal and team goal-setting was implemented in Fall 2005, with a multi-racial/ethnic sample of 1442 employees at 16 worksites of The Home Depot, Inc. Change in physical activity was analyzed in Fall 2007 using latent growth modeling and latent transition analysis.
                Participants in the intervention had greater increases in moderate and vigorous physical activity and walking compared to participants in a health education control condition. The proportion of participants that met the Healthy People 2010 recommendation for regular participation in either moderate or vigorous physical activity remained near 25% at control sites during the study but increased to 51% at intervention sites. During the last 6 weeks of the study, intervention participants exceeded 300 weekly minutes of self-reported moderate-to-vigorous physical activity and 9000 daily pedometer steps.
                The results support the feasibility and efficacy of the Move to Improve intervention and the role of goal-setting for attaining increased physical activity levels. To evaluate the effectiveness of combinations of three methods to promote physical activity.
                Randomised controlled trial. Baseline assessment with post-intervention follow up at 12 weeks and 1 year.
                One urban general practice, 1995-7. Participants: 523 adults aged 40 to 64 years, randomised to four intervention groups and a control group.
                Brief (one interview) or intensive (six interviews over 12 weeks) motivational interviewing based on the stages of change model of behaviour change, with or without financial incentive (30 vouchers entitling free access to leisure facilities).
                Physical activity score; sessions of moderate and vigorous activity in the preceding four weeks.
                Response rate was 81% at 12 weeks and 85% at one year. More participants in the intervention group reported increased physical activity scores at 12 weeks than controls (38% v 16%, difference 22%, 95% confidence interval for difference 13% to 32%), with a 55% increase observed in those offered six interviews plus vouchers. Vigorous activity increased in 29% of intervention participants and 11% of controls (difference 18%, 10% to 26%), but differences between the intervention groups were not significant. Short term increases in activity were not sustained, regardless of intensity of intervention.
                The most effective intervention for promoting adoption of exercise was the most intensive. Even this did not promote long term adherence to exercise. Brief interventions promoting physical activity that are used by many schemes in the United Kingdom are of questionable effectiveness. Many adolescent girls fail to meet national guidelines for physical activity, and the prevalence of obesity is increasing among this group. Our study examined the effects of a comprehensive school-based intervention on physical activity among high-school girls.
                A group-randomized controlled field trial was conducted at 24 high schools. A school-based sample of 2744 girls (48.7% African American, 46.7% White) participated in a measurement protocol when they were in eighth and then ninth grade. A comprehensive physical activity intervention was designed to change the instructional program and the school environment to increase support for physical activity among girls.
                At follow-up, 45% of girls in the intervention schools and 36% of girls in the control schools reported vigorous physical activity during an average of 1 or more 30-minute time blocks per day over a 3-day period.
                A comprehensive school-based intervention can increase regular participation in vigorous physical activity among high-school girls. Significant resources and time are invested in the production of research knowledge. The primary objective of this randomized controlled trial was to evaluate the effectiveness of three knowledge translation and exchange strategies in the incorporation of research evidence into public health policies and programs.
                This trial was conducted with a national sample of public health departments in Canada from 2004 to 2006. The three interventions, implemented over one year in 2005, included access to an online registry of research evidence; tailored messaging; and a knowledge broker. The primary outcome assessed the extent to which research evidence was used in a recent program decision, and the secondary outcome measured the change in the sum of evidence-informed healthy body weight promotion policies or programs being delivered at health departments. Mixed-effects models were used to test the hypotheses.
                One hundred and eight of 141 (77%) health departments participated in this study. No significant effect of the intervention was observed for primary outcome (p < 0.45). However, for public health policies and programs (HPPs), a significant effect of the intervention was observed only for tailored, targeted messages (p < 0.01). The treatment effect was moderated by organizational research culture (e.g., value placed on research evidence in decision making).
                The results of this study suggest that under certain conditions tailored, targeted messages are more effective than knowledge brokering and access to an online registry of research evidence. Greater emphasis on the identification of organizational factors is needed in order to implement strategies that best meet the needs of individual organizations.
                The trial registration number and title are as follows: ISRCTN35240937 -- Is a knowledge broker more effective than other strategies in promoting evidence-based physical activity and healthy body weight programming? The authors studied the effectiveness of community-wide health education on physical activity knowledge, attitudes, self-efficacy, and behavior. Random samples of residents aged 18-74 years who lived in four central California cities (baseline, n = 1,056 men and 1,183 women) were evaluated in 1979-1980 and approximately every 2 years thereafter to obtain four independent samples. Moreover, every subject in the initial independent samples was asked to return for follow-up every 2 years thereafter; subjects who completed all four examinations constituted the cohort sample (n = 408 men and 499 women). Two medium-sized cities received health education and two similarly sized cities served as controls. Results indicated little consistent evidence of a treatment effect on physical activity knowledge, attitudes, or self-efficacy in either men or women. Among physical activity measures, there was an indication of a positive treatment effect for men in the independent samples for estimated daily energy expenditure and percent participation in vigorous activities (p < 0.01), and for women in the independent (p = 0.014) and cohort (p < 0.01) samples for engagement in the number of moderate activities. These results underscore the need for development of more effective interventions to change physical activity than is provided by a broad-based, community-wide health education program and for more sensitive and reliable measures of knowledge, attitudes, and behavior with regard to physical activity. Walking is a key focus of public health interventions yet is particularly uncommon in rural residents. This study's purpose was to determine whether a multilevel community intervention affected rates of moderate physical activity, in particular walking.
                A quasi-experimental design examined changes in walking in six rural intervention communities in Missouri and six comparison communities in Arkansas and Tennessee in 2003-2004. Interventions were developed with community input and included individually tailored newsletters; interpersonal activities that stressed social support and health provider counseling; and community-wide events such as fun walks. A dose variable estimated exposure to intervention activities. Primary outcomes were rates of walking and moderate physical activity in the past week.
                At follow-up (n = 1531), the percentage of respondents who met the recommendation for walking was the same across the intervention and comparison areas. Among the dependent variables, walking showed some evidence of a positive linear trend across dose categories (P = 0.090). After adjusting for covariates and baseline rates, intervention participants in the moderate and high dose categories were about three times more likely to meet recommended guidelines for walking.
                Some evidence of effectiveness was shown for a multilevel intervention approach to promote walking. Using a randomized controlled trial, we tested the efficacy of a fall prevention intervention to reduce falls among adults in a community-based health promotion program. Adults aged 65 and older within two counties were recruited (control n = 257; intervention n = 286). After 12 months, there was a significant decrease in the number of falls in both groups (odds ratio = 0.45, p < .04), but the time by group membership interaction was not significant (χ(2) = 0.15, p < .69). Multivariate analysis did not find significant differences between the control and intervention groups for physical function as measured by a balance test or a sitting/standing test. Further research is needed on effective methods to deliver multifaceted fall interventions to older adults who are already being served by community health promotion programs. To assess the outcomes of health behavior interventions, focusing on the elementary school environment, classroom curricula, and home programs, for the primary prevention of cardiovascular disease.
                A randomized, controlled field trial at four sites with 56 intervention and 40 control elementary schools. Outcomes were assessed using prerandomization measures (fall 1991) and follow-up measures (spring 1994).
                A total of 5106 initially third-grade students from ethnically diverse backgrounds in public schools located in California, Louisiana, Minnesota, and Texas.
                Twenty-eight schools participated in a third-grade through fifth-grade intervention including school food service modifications, enhanced physical education (PE), and classroom health curricula. Twenty-eight additional schools received these components plus family education.
                At the school level, two primary end points were changes in the fat content of food service lunch offerings and the amount of moderate-to-vigorous physical activity in the PE programs. At the level of the individual student, serum cholesterol change was the primary end point and was used for power calculations for the study. Individual level secondary end points included psychological factors, recall measures of eating and physical activity patterns, and other physiologic measures.
                In intervention school lunches, the percentage of energy intake from fat fell significantly more (from 38.7% to 31.9%) than in control lunches (from 38.9% to 36.2%)(P<.001). The intensity of physical activity in PE classes during the Child and Adolescent Trial for Cardiovascular Health (CATCH) intervention increased significantly in the intervention schools compared with the control schools (P<.02). Self-reported daily energy intake from fat among students in the intervention schools was significantly reduced (from 32.7% to 30.3%) compared with that among students in the control schools (from 32.6% to 32.2%)(P<.001). Intervention students reported significantly more daily vigorous activity than controls (58.6 minutes vs 46.5 minutes; P<.003). Blood pressure, body size, and cholesterol measures did not differ significantly between treatment groups. No evidence of deleterious effects of this intervention on growth or development was observed.
                The CATCH intervention was able to modify the fat content of school lunches, increase moderate-to-vigorous physical activity in PE, and improve eating and physical activity behaviors in children during 3 school years. Physician counseling of patients to increase physical activity has had limited success in changing behavior. Providing organizational support to primary care providers and their patients may increase effectiveness.
                This study evaluates the effectiveness of a telephone-based intervention to increase physical activity among patients who exercised <15 minutes daily and wanted to increase their physical activity over a 6-month period.
                This was a randomized controlled trial, conducted from 1997 to 1998, of 316 patients aged 18 to 65 who were recruited from a mailed health risk assessment. Baseline and 6-month post-intervention telephone assessments were conducted by telephone.
                One family physician's patients in a suburban community.
                Three sessions of telephone-delivered motivational counseling.
                Physical activity score (11-item Physician-Based Assessment and Counseling for Exercise [PACE]) 6 months after the intervention.
                After adjusting for baseline exercise, there was a significantly higher level of self-reported exercise among individuals randomized to the intervention at the 6-month follow-up. The mean level of activity at follow-up for the intervention group was a PACE score of 5.37, compared to 4.98 in the control group (p<0.05). In the secondary analysis, which was limited to individuals who received the intervention, the effect was stronger (PACE score of 5.58 compared to 4.94, p<0.013).
                Patients can be recruited using a health-screening questionnaire to receive a telephone-delivered behavioral intervention to successfully increase their physical activity levels. Physical activity is important for weight control and good health; however, activity levels decline in the adolescent years, particularly in girls.
                Group randomized controlled trial.
                Middle school girls with English-speaking skills and no conditions to prevent participation in physical activity in 36 schools in six geographically diverse areas of the United States. Random, cross-sectional samples were drawn within schools: 6th graders in 2003 (n=1721) and 8th graders in 2005 (n=3504) and 2006 (n=3502).
                A 2-year study-directed intervention (fall 2003 to spring 2005) targeted schools, community agencies, and girls to increase opportunities, support, and incentives for increased physical activity. Components included programs linking schools and community agencies, physical education, health education, and social marketing. A third-year intervention used school and community personnel to direct intervention activities.
                The primary outcome, daily MET-weighted minutes of moderate-to-vigorous physical activity (MET-weighted MVPA), was assessed using accelerometry. Percent body fat was assessed using anthropometry.
                After the staff-directed intervention (pre-stated primary outcome), there were no differences (mean= -0.4, 95% CI= -8.2 to 7.4) in adjusted MET-weighted MVPA between 8th-grade girls in schools assigned to intervention or control. Following the Program Champion-directed intervention, girls in intervention schools were more physically active than girls in control schools (mean difference 10.9 MET-weighted minutes of MVPA, 95% CI=0.52-21.2). This difference is about 1.6 minutes of daily MVPA or 80 kcal per week. There were no differences in fitness or percent body fat at either 8th-grade timepoint.
                A school-based, community-linked intervention modestly improved physical activity in girls. Currently there is a great deal of interest in multistrategy community-based approaches to changing physical activity or health behaviors. The aim of this article is to describe the effectiveness of the physical activity promotion project "10,000 Steps Ghent" after 1 year of intervention.
                A multistrategy community-based intervention was implemented in 2005 with follow-up measurements in 2006 to promote physical activity to adults. A local media campaign, environmental approaches, the sale and loan of pedometers, and several local physical activity projects were concurrently implemented. In 2005, 872 randomly selected subjects (aged 25 to 75), from the intervention community Ghent and 810 from a comparison community, participated in the baseline measurements. Of these, 660 intervention subjects and 634 comparison subjects completed the follow-up measurements in 2006. Statistical analyses were performed in 2006.
                After one year there was an increase of 8% in the number of people reaching the "10,000 steps" standard in Ghent, compared with no increase in the comparison community. Average daily steps increased by 896 (95% CI=599-1192) in the intervention community, but there was no increase in the comparison community (mean change -135 [95% CI= -432 to 162]) (F time x community=22.8, p<0.001). Results are supported by self-reported International Physical Activity Questionnaire (IPAQ) data.
                The "10,000 steps/day" message reached the Ghent population and the project succeeded in increasing pedometer-determined physical activity levels in Ghent, after 1 year of intervention. This study examined effects of a school-based intervention called PLAY (Promoting Lifestyle Activity for Youth) on physical activity levels and body mass index (BMI) of students. Participants included 606 fourth-grade students selected from a stratified sample of 35 schools in Arizona and placed into four groups: PLAY & PE, PLAY Only, PE Only, and No Treatment. A treatment-control, post-measurement design assessed physical activity using the YAMAX pedometer, and height and weight data were collected following the intervention. One-way ANOVAs were used to analyze the data. Results indicated the treatment was effective at increasing the physical activity level of children, especially girls. No significant differences between groups were found for BMI. Programs such as PLAY, which can increase the activity level of children, may have significant health implications for youth. This article reports the development and exploratory testing of a school-based intervention programme designed to enhance levels of physical activity in adolescents. The intervention is based on social cognitive theory (SCT), self-regulation theory (SRT) and planning as evidence-based mediators of physical activity changes. Two classes, paired on socio-economic variables, were selected from each of eight Portuguese schools and randomly assigned to an intervention or control group (N = 291). Primary outcome was 'moderate to vigorous physical activity' (International Physical Activity Questionnaire) measured pre and post intervention and at three and nine months follow-up. SCT, SRT and planning variables were secondary outcomes measured pre and post intervention. At post test, participants in the intervention group reported 18 min per week more physical activity (PA), adjusted for pre-intervention, age and sex, than those in the control group (95% confidence interval -10 to 46; p = 0.249). This difference increased to 33 min (95% CI-4 to 71; p = 0.082) at three months and to 57 min (95% CI 13 to 101, p = 0.008) at nine month follow-up. Moreover, the intervention resulted in changes of some of the theoretical target variables, including outcome expectancies and coping planning. However, no evidence was found for the changes in theoretical moderators to mediate the intervention effects on behaviour. Implications for theory and for future research are discussed. Because physical inactivity poses serious health risks, interventions are urgently needed to reverse the increasingly sedentary lifestyles of adolescent girls.
                The aim of this study was to determine the feasibility of "Girls on the Move," an individually tailored computerized physical activity (PA) program plus nurse counseling intervention, in increasing PA.
                A pretest-posttest control group design was used with 77 racially diverse sedentary girls in Grades 6, 7, and 8 from two middle schools. Each of the instructional grades was randomly assigned to either an intervention or control condition. After completing computerized questionnaires, each girl in the control group received a handout listing the PA recommendations. To encourage PA, each girl in the intervention group received computerized, individually tailored feedback messages based on her responses to the questionnaires, individual counseling from the school's pediatric nurse practitioner (PNP), and telephone calls and mailings from a trained research assistant. At 12 weeks, girls in both groups responded to the questionnaires.
                No differences in self-reported PA emerged between the intervention and control groups at Weeks 1 (baseline) and 12 (postintervention). Repeated measures ANOVA showed a significant interaction between group and time for social support for PA, F(1, 69) = 5.73, p = .019, indicating that the intervention group had significantly greater social support across time than did the control group. From baseline to postintervention, social support increased for the intervention group but decreased for the control group.
                Reasons for the lack of significant differences between the groups on the PA measures were cited. Important information that could inform subsequent studies that test interventions to increase youth PA was acquired from conducting this study. Future efforts to increase PA participation might include this approach for enhancing social support for PA. To investigate the impact of a simple written prescription for physical activity given by a general practitioner and the effect of supplementing this with mailed information materials about physical activity.
                A controlled trial was conducted in 27 general practices in New South Wales, Australia. Subjects were sequential routine care patients between 25 and 65 years old. Controls (n = 386) were recruited first, and intervention subjects two weeks later. Intervention subjects were randomised to receive a prescription only (n = 380) or a prescription plus a mailed booklet (n = 376). Self reported physical activity levels were measured by interview at baseline, 6-10 weeks, and seven to eight months.
                By intention to treat, the average changes in minutes of total physical activity did not differ significantly between the groups. Inactive people in the prescription plus supplementary booklet group were significantly more likely than controls to report an increase in their physical activity by at least 60 min/week after 6-10 weeks (odds ratio 1.58, 95% confidence interval 1.06 to 2.35). No significant short term improvements in self reported activity were shown in the prescription only group. In the supplemented group, the proportion reporting an increase in physical activity to 3,344 kJ/week at 6-10 weeks was not significant, and neither intervention group showed significant increases in any of the outcome measures at seven to eight months by intention to treat. Treatment received analysis showed greater improvements in intervention groups, especially the prescription plus booklet group, in which the odds of inactive people in this group reporting increased activity became significant at seven to eight months.
                A prescription for physical activity from a general practitioner, supplemented by additional written materials, can lead to modest short term improvements in self reported physical activity levels among inactive patients. A prescription alone was found not to be effective.
Although numerous studies have been undertaken, there is a noticeable inconsistency of the findings of the available studies and this is confounded by serious methodological issues within the included studies. The body of evidence in this review does not support the hypothesis that multi-component community wide interventions effectively increase population levels of physical activity. There is a clear need for well-designed intervention studies and such studies should focus on the quality of the measurement of physical activity, the frequency of measurement and the allocation to intervention and control communities.