"Physical,
cognitive and social activity increased in volunteers, suggesting
potential for Experience Corps and similar programs to improve health
for an aging population, while simultaneously improving educational
outcomes for children," she said. "It potentially could
have great social impact if taken to a large scale."
The
study is published in the April issue of the Journal of Urban Health,
which also includes companion studies by Johns Hopkins researchers
that found Experience Corps to be cost effective and detailed the
educational boon to students.
Started in 1996, Experience Corps is an award-winning program that
places teams of older adults in urban public schools as tutors and
mentors. Currently, more than 1,000 Experience Corps members are
volunteering in 100 elementary and middle schools in 18 cities across
the country. But the program was also designed to help adults keep
healthy, say the Johns Hopkins researchers.
"Evidence is mounting that remaining active and engaged is
beneficial as one ages, but our society has not developed approaches
that support such activity for the broad spectrum of older adults,"
says Fried. "That's why we were eager to see if this program
might work to provide such benefits."
To test, in a scientifically valid method, whether Experience Corps
improves key aging risk factors declines in physical, cognitive,
and social activity a research team designed a two-year pilot study
that compared 128 Experience Corps volunteers, ages 60 to 86, to
a comparable control group.
Participants in the study, predominantly African-American women,
volunteered at six Baltimore public schools, helping children in
kindergarten to grade three. The volunteers were organized into
teams and worked in the schools 15 hours per week, usually over
three to four days. They were trained to help children improve their
reading skills, to support library operations and help pick out
books and read, to solve problems and play cooperatively. A small
stipend of $150 to $200 a month was offered to the volunteers to
reimburse for expenses.
Volunteers signed up for "generative," not health-related
reasons, says Fried. The majority, almost 88 percent, either said
they loved children, or wanted to help them. Of the rest, about
11 percent said they wanted to make a difference in their own lives,
or help themselves "feel good," and only 2 percent said
they volunteered to "stay active."
Most of the volunteers, 71 percent, had a high school education,
and 14 percent used a cane.
To determine any health advantages that came with participation,
the researchers evaluated the control and intervention groups before
and after the trial. They found that 98 percent of participants
in the intervention group reported being satisfied with their experience,
and 80 percent returned the following year. Such a high retention
rate reflects the "health promotion potential" of Experience
Corps, the researchers say.
The investigators also found evidence for short-term change in health
outcomes. Among them:
-
At follow-up, 44 percent of Experience Corps participants reported
feeling stronger, compared with 18 percent of controls, and there
was a 13 percent increase in those who reported their strength
as very good to excellent, versus a 30 percent decline among controls.
- Cane
use decreased in 50 percent of users in the intervention group,
compared with 20 percent in the control group. Falls also decreased.
- In
terms of social activity, Experience Corps volunteers reported
a significant increase, compared to a decline in the control group,
in the number of people they felt they could turn to for help.
- In
measuring cognitive benefit, the researchers say that increases
in cognitive activities in the school were not offset by a decrease
in book reading and other such mental activities at home in participants.
TV viewing, considered the "most common low intensity activity,"
declined by 4 percent in volunteers and increased by 18 percent
in the control group. "In contrast to other programs that
target health care beneficiaries, the Experience Corps program
is designed to attract all adults, including those less likely
to participate in formal health-promotion programs," says
Fried. "We show it can lead to meaningful short-term improvement
in healthy behaviors for older adults while they, at the same
time, offer social capital that is highly valued," says Fried.
While Experience Corps may be expensive for the short-term health
improvements it offers volunteers, when potential benefits for students
and possible long-term benefits are factored in, the program could
be highly cost-effective, say Johns Hopkins researchers.
This study, published in the same issue of the journal as a companion
to the Johns Hopkins pilot study of the health benefits inherent
in the Experience Corps program, found cost per volunteer (assuming
500 volunteers were enrolled) was $3,613, or about $7 per hour of
volunteer time. Short-term improvements in older adult health resulted
in medical care cost savings of $273 per volunteer.
When long-term benefit for students was factored in, the program
became fiscally sound, says lead author Kevin Frick, Ph.D., of the
Johns Hopkins Bloomberg School of Public Health. "If only 12
students who would not have graduated otherwise eventually graduate,
the program becomes cost-effective or cost-saving."
In yet another related study, the Experience Corps program was found
to lead to selective improvements in student reading, academic achievement
and classroom behavior while not burdening the school staff, say
researchers who studied 1,194 children from six urban elementary
schools who participated in this phase of the pilot trial.
At follow-up, third-grade children whose schools were randomly selected
for the program had significantly higher scores on a standardized
reading test than children in the control schools, and office referrals
for classroom misbehavior decreased by about half in the Experience
Corps schools but remained the same in the control schools.
"Taken together, the results from this pilot trial lead us
to conclude that the Experience Corps Baltimore program can potentially
make an important difference in the lives of young children and
their schools, even after a relatively brief exposure period,"
says the study's lead researcher, George W. Rebok, Ph.D., of the
Johns Hopkins Bloomberg School of Public Health.
The lead study was funded by The Retirement Research Foundation,
the Erickson Foundation, the State of Maryland, the State of Maryland
Department of Education, the Baltimore City Public Schools, the
Baltimore City Commission on Aging and Retirement Education, the
Johns Hopkins Prevention Center and the Corporation for National
Service. Co-authors include Michelle Carlson, Ph.D., Kevin Frick,
Ph.D., Joel Hill, M.S.,George Rebok, Ph.D., James Tielsch, Ph.D.,
Scott Zeger, Ph.D., Barbara Wasik, Ph.D., from Hopkins; Teresa Seeman,
Ph.D., from the University of California at Los Angeles; Marc Freedman,
from Civic Ventures Inc.; and Sylvia McGill from The Greater Homewood
Community Corporation, an umbrella community organization in northern
Baltimore.
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