Effects of Shoe Longitudinal Bending Stiffness

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

21 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-02-07

Study Completion Date

2022-06-28

Brief Summary

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Carbon plates inserted in competitive running shoes have been increasingly used in the past 2-3 years and several investigations have shown that these plates increase the longitudinal bending stiffness (LBS) of the shoe. It leads to a redistribution of muscle work and to a modification of the force generation conditions, which may reduce the energy cost of running (Cr) and improve performance.

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Detailed Description

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Only one study has investigated the effects of LBS in running bouts longer than 8 minutes but on the biomechanics part, and their effects on neuromuscular fatigue and prolonged running performance. The aim of this study is to compare shoes with and without carbon plates during a prolonged (21 km) running exercise on Cr, plantar flexor neuromuscular fatigue and running kinetics and kinematics to estimate the changes high-LBS may induce on fatigue and subsequent performance.

Conditions

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Runners

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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running with stiff shoes

21 km of running with stiff shoes followed by a time-to-exhaustion run.

Group Type ACTIVE_COMPARATOR

running flexible shoes

Intervention Type OTHER

21kms of running flexible shoes followed by a time-to-exhaustion run.

running flexible shoes

21 km of running flexible shoes followed by a time-to-exhaustion run.

Group Type EXPERIMENTAL

running flexible shoes

Intervention Type OTHER

21kms of running flexible shoes followed by a time-to-exhaustion run.

Interventions

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running flexible shoes

21kms of running flexible shoes followed by a time-to-exhaustion run.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* aged ≥ 18 and ≤ 50 years.
* men
* experienced, well-trained endurance runners with the capacity to run 21km in less than 1h 40 and who train more than 5h a week.
* free from muscular, bone or joint injuries
* free from neurologic disease
* approval received from a physician

Exclusion Criteria

* currently participating in a structured exercise program
* injury in the 3 months prior to the protocol
* chronic joint pathologies (e.g.: repetitive sprains, patellar or ligament problems)
* the intake of corticosteroids within 3 months (inhalation, infiltration or history of prolonged corticosteroid therapy).

Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes