Tai Chi for Older People Reduces Falls, May
Help Maintain Strength
Tai Chi, a martial arts form that enhances balance and body awareness
through slow, graceful, and precise body movements, can significantly cut
the risk of falls among older people and may be beneficial in maintaining
gains made by people age 70 and older who undergo other types of balance and
strength training. The news comes in two reports appearing in the May 1996
issue of the Journal of the American Geriatrics Society.
The two studies are the first involving Tai Chi to be reported by scientists
in a special frailty reduction program sponsored by the National Institute
on Aging (NIA).
In the first study, Steven L. Wolf, Ph.D., and colleagues at the Emory
University School of Medicine, Atlanta, Ga., found that older people taking
part in a 15-week Tai Chi program reduced their risk of falling by 47.5
percent. A second study, by Leslie Wolfson, M.D., and colleagues at the
University of Connecticut Health Center, Farmington, found that several
interventions to improve balance and strength among older people were
effective. These improvements, particularly in strength, were preserved over
a 6-month period while participants did Tai Chi exercises.
The projects are among several in the NIA's Frailty and Injuries:
Cooperative Studies of Intervention Techniques, or FICSIT, initiative,
launched in 1990 to improve physical function in old age.
Research from these and other FICSIT trials has demonstrated the benefits of
strength training for older people and the value and cost-effectiveness of
targeted, fall prevention programs for the elderly. It is estimated that
each year falls are responsible for costs of over $12 billion in the U.S.,
and the costs due to physical frailty are much higher.
The news on Tai Chi is a reminder that relatively "low tech" approaches
should not be overlooked in the search for ways to prevent disability and
maintain physical performance in late life. "The FICSIT studies have shown
that a range of techniques, from the most sophisticated medical
interventions to more 'low tech' methods, can help older people avoid
frailty and falling," says Chhanda Dutta, Ph.D., Director of Musculoskeletal
Research in the NIA's Geriatrics Program. "We must make sure that we look at
every approach, especially relatively inexpensive ones like Tai Chi," says
Dutta. "People can do this at home and with friends once they have had the
The Wolf study included 200 participants age 70 and older. The participants
were divided into groups for Tai Chi, computerized balance training, and
education. In addition to 15 weekly sessions in which they progressed to
more complex forms of Tai Chi, the participants were asked to practice at
home at least 15 minutes, twice daily. Another group received balance
training using a computer-operated balance platform in which participants
tried to improve control of their body sway under increasingly difficult
conditions. The education group was asked to not change any of its current
exercise regimens, and took part in weekly meetings on a variety of topics
with a nurse gerontologist.
Wolf's group compared several factors before and after the interventions,
and found improvements in certain key areas. The most notable change
involved the reduction in the rate of falling for the Tai Chi group. The
groups receiving computerized balance platform training did not have
significantly lower rates of falling. The Tai Chi participants also took
more deliberate steps and decreased their walking speed slightly compared to
the other groups. Fear of falling also was reduced for the Tai Chi group.
After the intervention, only 8 percent of the Tai Chi group said they feared
falling, compared with 23 percent before they had the training.
"The Tai Chi group seemed to have more confidence," says Wolf, noting that
"they had an increased sense of being able to do all that they would like to
do." Wolf notes that almost half of the Tai Chi participants chose to
continue meeting informally after the study was finished.
The Connecticut FICSIT site used sophisticated techniques for balance and
strength training. Some 110 participants, averaging age 80, received
training for 3 months. They were divided into four groups: one group
received balance training in 45-minute sessions three times per week,
including a computerized balance platform (of a different type than the one
used in the Wolf study) as well as low-tech balance exercises; another took
part in resistance training and weight lifting three times a week to improve
strength; a third group did both balance and strength training, and a fourth
"education" group participated in sessions on fall prevention and stress
management. Everyone in the study took part in weekly Tai Chi classes for 6
months following the intensive training period.
The people in the study were evaluated before undergoing any training,
immediately after the training, and after a 6-month follow-up Tai Chi
program. The interventions of major focus in the study -- intensive balance
and strength training -- produced marked effects. Participants had a 25 to
50 percent improvement in three different measures of balance after
completing balance training, while strength training resulted in a 17
percent improvement in strength. Some of the gains immediately following the
balance and strength training were lost after 6 months of the Tai Chi
follow-up program. However, the participants tested significantly higher
than they had before the interventions began.
Without a comparable group who did not receive Tai Chi training after
exercise training, it is difficult to know for certain whether the Tai Chi
contributed to maintaining gains in strength and balance. Wolfson noted that
study participants might have done even better at the end of the maintenance
phase had they continued the more intensive balance and strength training,
but he also suggested that Tai Chi might be further studied as a less
intensive way to hold onto the benefits of prior strength and balance
The NIA, part of the National Institutes of Health, leads the Federal effort
conducting and supporting research on the aging process and the diseases and
disabilities that accompany advancing age. The Institute's program focuses
on biomedical, clinical, and social and behavioral research, and supports
the Claude D. Pepper Older American Independence Centers at medical centers
across the U.S., whose research is aimed at maintaining healthy function
well into old age.