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Am J Sports Med. 2010 Mar;38(3):486-91. doi: 10.1177/0363546509350738.

Motion control shoe delays fatigue of shank muscles in runners with overpronating feet.

Author information

1
Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.

Abstract

BACKGROUND:

The motion control shoe is a well-developed technology in running shoe design for controlling excessive rearfoot pronation and plantar force distribution. However, there is little information on the leg muscle activation with different shoe conditions.

HYPOTHESIS:

The motion control shoe can prevent excessive shank muscle activation and delay fatigue.

STUDY DESIGN:

Controlled laboratory study.

METHODS:

Twenty female recreational runners with excessive rearfoot pronation were tested with running 10 km on a treadmill on 2 days. Participants wore either a motion control running shoe or neutral running shoe on each day. Activities of their right tibialis anterior and peroneus longus were recorded with surface electromyography. The normalized root-mean-square electromyography and median frequency were compared between the 2 shoe conditions.

RESULTS:

Significant positive correlations were found between the root-mean-square eletromyography and running mileage in both the tibialis anterior and peroneus longus in the neutral shoe condition (P <.001). The median frequency dropped in both shoe conditions with mileage, but paired t tests revealed a significantly larger drop in the neutral shoe (P < .001 for peroneus longus, P = .074 for tibialis anterior).

CONCLUSION:

The motion control shoe may facilitate a more stable activation pattern and higher fatigue resistance of the tibialis anterior and peroneus longus in individuals with excessive rearfoot pronation during running.

CLINICAL RELEVANCE:

The motion control shoe may increase the running endurance, thus reduce overuse injuries, in athletes with unstable feet during long-distance running.

PMID:
20194955
DOI:
10.1177/0363546509350738
[Indexed for MEDLINE]

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