Adequate physical activity is highly promoted
as a general health measure and controlled clinical
trials suggest that load-bearing exercises are
most effective in preserving skeletal mass. Adequate
calcium intake is the cornerstone of any osteoporosis
prevention (or treatment) plan. The effectiveness
of dietary calcium and vitamin D supplementation
for increasing bone mass in older adults and decreasing
fracture risk has been demonstrated in controlled
clinical trials. The recommended daily calcium
intake for patients over the age of 50 is 1200
mg. However, optimal daily calcium intake may
be higher (i.e., 1500 mg) in men and
women over the age of 65. In postmenopausal women
not receiving hormone therapy, the optimal daily
calcium intake is 1500 mg. The NOF recommends
800 IU/d of vitamin D for older adults, as well
as for chronically ill, housebound, or institutionalized
individuals.
Patients who smoke should be encouraged to quit
because age-related bone loss is accelerated after
the fifth decade of life in smokers. In terms
of reducing fracture risk, adequate physical activity
reduces the risk of falls in elderly patients
by increasing muscle balance and tone. Weight-bearing
exercise, in which the bones and muscles carry
the body's weight, is most effective. Examples
include walking, jogging, tai-chi, stair climbing,
dancing, and tennis. The value of assessing the
risk of falling, and intervening in those at high
risk (e.g., those with preexisting
fragility fractures), is supported by randomized
clinical trials in elderly patients. |