Diana Ingram

Physical Activity Text Messaging Interventions in Adults: A Systematic Review

BACKGROUND Physical inactivity is a leading health risk factor for mortality worldwide. Researchers are examining innovative techniques including the use of mobile technology to promote physical activity. One such technology, text messaging, is emerging internationally as a method to communicate with and motivate individuals to engage in healthy behaviors, including physical activity. AIM Review the existing scientific literature on adult physical activity text messaging interventions. METHODS This systematic review examined research papers that addressed physical activity text messaging intervention studies in adults. Using multiple databases, the search strategy included published English language studies through October 1, 2011. An author-developed data collection tool was used independently by two reviewers to extract and examine the selected study variables. RESULTS The initial search resulted in the identification of 200 publications. Eleven publications representing 10 studies were included in the final review. Studies were conducted in seven countries with over half the studies being randomized controlled trials. Participants of the studies were predominantly young to middle aged women. Physical activity data were mainly obtained by self-report although three studies used pedometers or accelerometers. Interventions ranged from only sending out text messages to combining text messages with educational materials, staff support, and/or Internet technology. Minimal information was given regarding development or number of text messages used. The median effect size for the studies was 0.50. CONCLUSIONS To date, using text messaging as a method to promote physical activity has only been studied by a small group of researchers. Current physical activity text messaging literature is characterized by small sample sizes, heterogeneous but positive effect sizes, and a lack of specificity as to the development of the text messages used in these studies. Further research in this area is imperative to facilitate the expansion of mobile technology to promote physical activity.

Outcomes of a Home-Based Walking Program for African-American Women

Purpose. As compared with minimal treatment (MT), to determine the effectiveness of a home-based walking intervention enhanced by behavioral strategies targeted and tailored to African-American women (enhanced treatment [ET]) on adherence, physical activity, fitness, and body composition at 24 and 48 weeks. Design. Using a quasi-experimental design, treatments were randomly assigned to one of two community health centers. Setting. The centers were in predominately African-American communities. Participants. Sedentary women (156 ET, 125 MT) 40 to 65 years were recruited within a 3-mile radius of each center. Intervention. Both treatments had the same orientation. The ET group had four targeted workshops followed by weekly tailored telephone calls over 24 weeks. Methods. Generalized linear mixed models were used to test effects of treatments on adherence, physical activity, aerobic fitness, and body composition. Results. Adherence was significantly higher in the ET than the MT group and was related to the number of workshops attended (r = .58) and tailored calls (r = .25) received. On-treatment analysis showed significant postintervention improvement in waist circumference and fitness in the ET group; however, these improvements were not statistically different between the two groups. Intent to treat analysis showed a significant increase in fitness, decrease in waist circumference, and no change in body mass index in both treatments. Conclusion. Findings suggest the potential impact of workshop group support on adherence in African-American women.

Women’s Walking Program for African American women: Expectations and recommendations from participants as experts

Effective interventions that increase adherence to physical activity are important for African American women because generally they are less active and more obese compared to white American women. The purpose of the authors in this study was to elicit from women who began a 12-month physical activity program between 2002 and 2005: (1) their recollections of outcome expectations and barriers, (2) feedback on program components, and (3) suggestions for program change. In 2007, the authors conducted qualitative post-intervention focus group interviews with women who had participated in the enhanced treatment group. Thirty-three African American women aged 44–69 years at the time of the study participated in one of four focus groups held at their community intervention site. Focus groups were formed on the basis of low (walked < 50% of expected walks) versus high (walked ≥ 50% of expected walks) adherence and low (0–2) versus high (3–4) attendance at the four workshops held during the 6-month adoption phase. Audio-taped sessions were transcribed, coded independently, and then uploaded into NVivo7 for final coding and data analysis. Suggestions for future program components include a lifestyle physical activity prescription, pedometers for self-monitoring, ongoing group support, and automated telephone support. Focus group participants can serve as experts to assist in content development for improving program effectiveness.

Medical assistant coaching to support diabetes self-care among low-income racial/ethnic minority populations: randomized controlled trial.

Innovative, culturally tailored strategies are needed to extend diabetes education and support efforts in lower-resourced primary care practices serving racial/ethnic minority groups. A randomized controlled trial (RCT) examined the effect of a diabetes self-care coaching intervention delivered by medical assistants and the joint effect of intervention and ethnicity over time. The randomized repeated-measures design included 270 low-income African American and Hispanic/Latino patients with type 2 diabetes. The 1-year clinic- and telephone-based medical assistant coaching intervention was culturally tailored and guided by theoretical frameworks. A1C was obtained, and a self-care measure was completed at baseline, 6 months, and 12 months. Data were analyzed using mixed-effects models with and without adjustment for covariates. There was a significant overall improvement in mean self-care scores across time, but no intervention effect. Results revealed differences in self-care patterns across racial/ethnic subgroups. No differences were found for A1C levels across time or group.

Effectiveness, efficiency, duration, and costs of recruiting for an African American women's lifestyle physical activity program

In a 48-week lifestyle physical activity controlled trial in African American women, we analyzed recruitment effectiveness, efficiency, duration, and costs. Social networking was the most effective approach for inviting women to the trial. Of the 609 who responded to invitations, 514 completed telephone screening; of these, 409 (80%) were found eligible. The health assessment screening was completed by 337 women; of these, 297 (88%) were found eligible. The mean number of days from completion of the telephone and health assessment screenings to beginning the intervention was 23.01, and the mean cost was

Randomized Clinical Trial of the Women’s Lifestyle Physical Activity Program for African-American Women 24- and 48-Week Outcomes

74.57 per person. Results suggest that provision of health assessment screening by study staff as part of recruitment is effective for minimizing attrition and also might be cost-effective.

Using Photos to Develop Text Messages to Promote Walking

Purpose: To compare the effects of a physical activity (PA) intervention of group meetings versus group meetings supplemented by personal calls or automated calls on the adoption and maintenance of PA and on weight stability among African-American women. Design: Randomized clinical trial with three conditions randomly assigned across six sites. Setting: Health settings in predominately African-American communities. Subjects: There were 288 women, aged 40 to 65, without major signs/symptoms of pulmonary/cardiovascular disease. Intervention: Six group meetings delivered over 48 weeks with either 11 personal motivational calls, 11 automated motivational messages, or no calls between meetings. Measures: Measures included PA (questionnaires, accelerometer, aerobic fitness), weight, and body composition at baseline, 24 weeks, and 48 weeks. Analysis: Analysis of variance and mixed models. Results: Retention was 90% at 48 weeks. Adherence to PA increased significantly (p < .001) for questionnaire (d = .56, 128 min/wk), accelerometer (d = .37, 830 steps/d), and aerobic fitness (d = .41, 7 steps/2 min) at 24 weeks and was maintained at 48 weeks (p < .001), with no differences across conditions. Weight and body composition showed no significant changes over the course of the study. Conclusion: Group meetings are a powerful intervention for increasing PA and preventing weight gain and may not need to be supplemented with telephone calls, which add costs and complexity.

Retention of African American Women in a Lifestyle Physical Activity Program.

PURPOSE Sending text messages (TMs) is a promising global intervention to help adults increase their engagement in walking as a form of physical activity (PA). But, little is known about how effective and acceptable TMs are developed. DESIGN Our study was designed to (a) determine the acceptability, among low-income adults, of receiving TMs to increase their walking and (b) develop, using photos to prompt discussion, a participant-generated database of TMs to promote walking. METHODS In 2011, three focus groups (low-income, sedentary adults) met at community clinics (one focus group at each of three clinics). To promote dialogue to help develop TMs, we created a discussion guide and a set of 40 photos depicting barriers to increasing PA or showing people walking. A content analysis of TMs developed was done using audiotaped transcripts, photo page notes, flip chart notes, and field notes. FINDINGS Twelve TM themes emerged, including 172 TMs developed by the 23 study participants (age 50 ± 6.3 years). CONCLUSIONS Using TMs to help achieve walking goals is an acceptable method of promoting PA with adults. Using culturally relevant photos to prompt discussion, focus groups can develop a database of PA-related TMs to promote walking. CLINICAL RELEVANCE Physical inactivity is a significant contributor to adult health problems worldwide, and walking is a realistic method of increasing PA. Using focus groups and photos, individuals can generate acceptable, personalized and innovative TMs to promote walking.

Bilingual Text4Walking Food Service Employee Intervention Pilot Study.

The purpose of the article is to examine how well individual characteristics, neighborhood characteristics, and intervention participation predict study retention and staff level of effort needed for retention, using a cohort of African American women enrolled in a physical activity program. Secondary data analysis was conducted from a randomized clinical trial. Participants were aged 40 to 65 years without major signs/symptoms of cardiovascular disease. Assessments were conducted at community sites in/bordering African American communities. Study retention was 90%. Of those retained, 24% required moderate/high level of staff effort for retention. Retention was predicted by being older, having lower perceived neighborhood walkability, living in neighborhoods with greater disadvantage and crime, and having greater program participation. More staff effort was predicted by participants being younger, having more economic hardships, poorer health, or lower intervention participation. We may be able to identify people at baseline likely to require more staff effort to retain.

Bilingual Text Messaging Translation: Translating Text Messages From English Into Spanish for the Text4Walking Program

Background Half of all adults in the United States do not meet the level of recommended aerobic physical activity. Physical activity interventions are now being conducted in the workplace. Accessible technology, in the form of widespread usage of cell phones and text messaging, is available for promoting physical activity. Objective The purposes of this study, which was conducted in the workplace, were to determine (1) the feasibility of implementing a bilingual 12-week Text4Walking intervention and (2) the effect of the Text4Walking intervention on change in physical activity and health status in a food service employee population. Methods Before conducting the study reported here, the Text4Walking research team developed a database of motivational physical activity text messages in English. Because Hispanic or Latino adults compose one-quarter of all adults employed in the food service industry, the Text4Walking team translated the physical activity text messages into Spanish. This pilot study was guided by the Physical Activity Health Promotion Framework and used a 1-group 12-week pre- and posttest design with food service employees who self-reported as being sedentary. The aim of the study was to increase the number of daily steps over the baseline by 3000 steps. Three physical activity text messages were delivered weekly. In addition, participants received 3 motivational calls during the study. Results SPSS version 19.0 and R 3.0 were used to perform the data analysis. There were 33 employees who participated in the study (57.6% female), with a mean age of 43.7 years (SD 8.4). The study included 11 Hispanic or Latino participants, 8 of whom requested that the study be delivered in Spanish. There was a 100% retention rate in the study. At baseline, the participants walked 102 (SD 138) minutes/day (per self-report). This rate increased significantly (P=.008) to 182 (SD 219) minutes/day over the course of the study. The participants had a baseline mean of 10,416 (SD 5097) steps, which also increased significantly (P=.017) to 12,540 (SD 5149). They significantly improved their performance on their aerobic fitness test (P<.001). The participants had a baseline mean systolic blood pressure of 120 mm Hg and diastolic blood pressure of 76 mm Hg, a mean body mass index of 29.29 kg/m2, and a mean waist circumference of 36.95 inches, without significant changes seen at 12 weeks. Conclusions We were able to conduct a motivational physical activity text messaging intervention within the workplace setting. Both physical activity and aerobic fitness improved. However, at baseline, participants were more active than they perceived themselves to be. Although there is insufficient evidence to draw strong conclusions about the study findings, it would be useful to test this physical activity text messaging intervention in a sedentary sample within a larger workplace intervention study trial conducted over a longer time frame.