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J Phys Act Health. 2011 Sep;8 Suppl 2:S257-66.

Peer volunteers improve long-term maintenance of physical activity with older adults: a randomized controlled trial.

Author information

1
Exercise and Wellness Program, Arizona State University, Phoenix, AZ, USA.

Abstract

BACKGROUND:

Using peer volunteers as delivery agents may improve translation of evidence-based physical activity promotion programs for older adults. This study examined whether tailored support from older peer volunteers could improve initiation and long-term maintenance of physical activity behavior.

METHODS:

Participants were randomized to 2 16-week, group-based programs: (1) peer-delivered, theory-based support for physical activity behavior change; or (2) an intervention typically available in community settings (basic education, gym membership, and pedometer for self-monitoring), attention-matched with health education. Moderate-to-vigorous physical activity (MVPA) was assessed via daily self-report logs at baseline, at the end of the intervention (16 weeks), and at follow-up (18 months), with accelerometry validation (RT3) in a random subsample.

RESULTS:

Seven peer volunteers and 81 sedentary adults were recruited. Retention at the end of the trial was 85% and follow-up at 18 months was 61%. Using intent-to-treat analyses, at 16 weeks, both groups had similar significant improvements in MVPA. At 18 months, the group supplemented with peer support had significantly more MVPA.

CONCLUSIONS:

Trained peer volunteers may enhance long-term maintenance of physical activity gains from a community-based intervention. This approach has great potential to be adapted and delivered inexpensively in community settings.

PMID:
21918240
PMCID:
PMC3181088
[Indexed for MEDLINE]
Free PMC Article

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