Ga. Greendale et al., THE EFFECT OF A WEIGHTED VEST ON PERCEIVED HEALTH-STATUS AND BONE-DENSITY IN OLDER PERSONS, Quality of life research, 2(2), 1993, pp. 141-152
To assess the effect of an exercise intervention using a weighted vest
on perceived health status and bone density in older persons, we enro
lled 36 seniors in a randomized controlled trial. The vest-use group m
et weekly for 1 h for a low level exercise class. They wore a weighted
vest during the class and as tolerated at home. The discussion contro
ls met for 1 h weekly. At baseline and follow-up (20 weeks), subjects
completed a questionnaire that incuded the 20 item MOS Short-Form Heal
th Survey, Multidimensional Health Locus of Control Scale, and Philade
lphia Geriatric Center Morale Scale, and bone density was measured by
dual energy X-ray absorptiometry. Subjects also completed daily activi
ty diaries. Subjects in the vest group reported a statistically signif
icant decrease in bodily pain, improved physical functioning, and incr
eased internal health locus of control. Bone density increased by 1% i
n the vest group and decreased by 0.6% in the controls (p = 0.12). We
conclude that our exercise intervention had a positive effect on some
measures of perceived health in older persons.