Twelve-Month Physical Activity Outcomes in Latinas in the Seamos Saludables Trial

Abstract

Background Physical activity interventions designed for Latinas have shown short-term behavior change, but longer-term change and maintenance is rarely measured. Purpose To assess physical activity change at 12 months, following 6-month tapered completion of a randomized controlled trial of a physical activity intervention for Latinas. Methods Two hundred sixty-six underactive (<60 minutes/week physical activity) Latinas were randomized to an individually tailored, culturally and linguistically adapted physical activity intervention, or a wellness contact control. Participants received the materials through the mail for 6 months, then received booster doses at 8, 10, and 12 months. Minutes per week of moderate to vigorous physical activity were measured by the 7-Day Physical Activity Recall interview at baseline and 6 and 12 months. Data were collected at Brown University between 2009 and 2013, and analyses were conducted in 2013. Results At 12 months, increases in moderate to vigorous physical activity were significantly greater in the intervention than in the wellness group (mean difference=52 minutes/week, SE=9.38, p<0.01), with both groups showing slight increases in moderate to vigorous physical activity from 6 to 12 months. Intervention participants were also more likely to meet national moderate to vigorous physical activity guidelines (OR=3.14, p=0.01). Conclusions The intervention was more effective than the wellness control at 12 months, and physical activity increases from baseline to 6 months were maintained, suggesting the intervention may lead to sustainable behavior change.

Long-term Surveillance of Physical Activity Habits of Latinas Enrolled in a 12-Month Physical Activity Intervention

“…19,20 Adult women (aged 18 to 65 years) who self-identified as Hispanic or Latina, could read and write in Spanish, and were underactive (<60 minutes of MVPA/week) were recruited for participation in the trial. A total of 132 participants (mean age = 41.6 + 10.1 years; mean body mass index = 25.6+4.3 kg/m 2 ) were randomized to a 12 month print-based physical activity intervention.…”

“…20 The primary findings of the Seamos Saludables study found participants randomized to the Print intervention significantly increased self-reported minutes/week of MVPA compared with a wellness contact control group at 6 months and these changes were maintained at 12 months. 19,20 The current study explored the daily physical activity habits of those randomized to the print-based intervention group only.…”

“…19,20 In an effort to more clearly understand the impact of individual components of the intervention, all participants were asked to wear a physical activity monitor (Omron HJ 720-ITC, Omron Health Care, Inc.) every day for 12 months that measured total steps and moderate intensity aerobic steps (100+ steps/minute) at both hourly and daily intervals. This detailed, longitudinal surveillance data will allow us to examine individual variability of physical activity over the course of an entire year.…”

Evaluating Mailed Motivational, Individually Tailored Postcard Boosters for Promoting Girls’ Postintervention Moderate-to-Vigorous Physical Activity

“…Marcus and colleagues (2007) found that both print- and Internet-based boosters increased PA; however, the study included mostly college-educated, high socioeconomic status, sedentary women. In a recent study with low-active, adult Latinas to determine whether individually-tailored booster materials mailed at 8, 10, and 12 months following a six-month intervention period increased PA at 12 months, Marcus et al (2015) noted that the booster intervention group had greater minutes/week of MVPA than the control group at 12-month F/U. Although the findings were promising, one study limitation involved self-reported MVPA, which may be biased with the intervention group overestimating MVPA (Marcus et al, 2015).…”

Web-Based Physical Activity Intervention for Latina Adolescents: Feasibility, Acceptability, and Potential Efficacy of the Ni�as Saludables Study (Preprint)

“…These three measures have been used extensively in physical activity research. [21,22] A consumer satisfaction questionnaire used in our past trials [17,23] was adapted specifically to assess the feasibility and acceptability of the current intervention.…”