Current research clearly indicates the importance of exercise and mobi
lity in the treatment of low back pain and also that bed rest and inac
tivity should play a relatively small part in treatment. The use of in
tensive, physical exercise end ''work hardening'' routines have been s
hown to be necessary for treating chronic low back pain and returning
individuals to work. Evidence derived from valid clinical studies of t
he use of manipulation in the treatment of low back pain shows a role
for it in the acute treatment of ''mechanical'' low back disorders. Th
ese studies have demonstrated that manipulative procedures result in m
ore rapid pain and functional relief compared with other conservative
therapies. Over a longer time frame, this advantage disappears.