Peak Impact Forces and Metabolic Cost During Mid-Forefoot Striking in Shod Versus Barefoot Runners

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

22 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-09-30

Study Completion Date

2012-07-31

Brief Summary

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This experimental study will compare impact forces and metabolic cost in runners (N=20; ages 18-45 years, who already use a forefoot strike running gait) in two treadmill running test sessions (shod vs barefoot running)

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Detailed Description

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Specific Aim 1: To identify if differences in metabolic cost exist between barefoot versus cushioned shod FM strikers during an acute bout of running exercise. Hypothesis: The metabolic cost will be higher in the cushioned shod runners with forefoot and midfoot strike compared to the barefoot runners.

Specific Aim 2: To identify if differences in peak impact forces exist between barefoot versus cushioned shod runners in forefoot-midfoot (FM) strikers.

Hypothesis: Peak impact forces will be higher in the barefoot runners with a forefoot and midfoot striking running style compared to the cushioned shod runners with a forefoot and midfoot striking running style.

Conditions

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Healthy

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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Shod versus Barefoot Running

two running conditions, with normal running shoes and barefoot

running with normal running shoes and barefoot

Intervention Type OTHER

shod condition: normal running shoes barefoot condition: running with no shoewear

Interventions

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running with normal running shoes and barefoot

shod condition: normal running shoes barefoot condition: running with no shoewear

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* trained runners with a running foot striking style of either initial forefoot or midfoot strike.
* run on average at least 20 miles/week
* be able to run for at least 20 minutes at one session
* free of any orthopedic limitation

Exclusion Criteria

* history of lower extremity injury within the last 6 months prior to testing
* rear-foot strike running style
* does not run in a cushioned shoe on any occasion
* runs on average \< 20 miles/week
* unable to run for 20 minutes or greater
* presence of any open wound or deformity on the feet which would prevent participant from running barefoot
* neurologic injury that would preclude normal running activity.

Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes