what-when-how
In Depth Tutorials and Information
Figure 7.6
Rocker bar
Toe only rockers benefit forefoot pathologies and ulceration by reduc-
ing the weight-bearing forces anterior to the metatarsal heads and
decreasing the need for toe dorsiflexion. This is useful for hallux rigidus
and also for ulcers or callus on the digits.
A heel to toe rocker rocks significantly on both heel strike and toe off
but is stable at midstance. This dissipates heel strike calcaneal forces or
motion at the ankle, aiding propulsion.
Negative heel rockers are effective in reducing pressure over promi-
nent metatarsal heads and toes, and are of considerable benefit in
offloading by shifting pressure to the midfoot. The midfoot loading will be
greater in those people with longer stride lengths. Rocker bottom Charcot
feet benefit from a double rocker with separate curved rockers at the heel
and toe creating two short weight-bearing periods (Janisse and Janisse
2006).
If a slight rocker is required, a style of shoe with an increased toe spring
can be useful as can a heel with a cut out (heel striker) at the posterior
aspect.
