Article

OBJECTIVE: To examine the effects of foot orthosis intervention during a
60-minute running test in pronated-foot runners with overuse knee or foot pain
during running. DESIGN: A randomized, controlled design. SETTING : Sports gym.
PARTICIPANTS: Twenty-four runners with pronated foot who experienced pain over
anterior knee or foot region during running were recruited and randomized into
the treatment, or the control, group. INTERVENTIONS : A soft insole with a
semi-rigid rearfoot medial wedge was given to the treatment group, and a soft
insole without corrective posting was applied to the control group. The immediate and short-term effects of orthosis application on
incidence of pain, pain intensity and onset time were evaluated using the
60-minutes treadmill test. RESULTS: Immediately after wearing the foot orthosis,
pain incidence reduced in the treatment group but not in the control group (P =
0.04). After two weeks, seven (58%) subjects in the treatment group and one (8%)
in the control group were free of pain during the test (P = 0.01). The pain
intensity score decreased significantly after orthosis application, from 35.5 to
17.2 (immediate effect, P = 0.014), then to 12.3 (short-term effect, P < 0.001).
CONCLUSION: The rearfoot medially-wedged insole was a useful intervention for
preventing or reducing painful knee or foot symptoms during running in runners
with pronated foot.

Langue : ANGLAIS