NCT06110637

Brief Summary

During running, each contact between the foot and the ground causes an impact. Ground reaction forces (GRF) are considered as an input into the musculoskeletal system. It involves a sudden deceleration in the lower limb packages (including muscles) which generates Soft-Tissue Vibrations (STV). The body is able to attenuate Soft-Tissue Vibrations (STV) but this capability decreases with fatigue. STV could be minimize by improving shoe midsole hardness.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at P25-P50 for not_applicable healthy-volunteers

Timeline
Completed

Started Jun 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 15, 2022

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2022

Completed
22 days until next milestone

Study Completion

Last participant's last visit for all outcomes

January 6, 2023

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

July 18, 2023

Completed
4 months until next milestone

First Posted

Study publicly available on registry

October 31, 2023

Completed
Last Updated

December 1, 2023

Status Verified

November 1, 2023

Enrollment Period

6 months

First QC Date

July 18, 2023

Last Update Submit

November 28, 2023

Conditions

Keywords

Soft-tissue vibrationsFootwearEndurance athletesRunningMuscle Weakness

Outcome Measures

Primary Outcomes (1)

  • Change of the damping coefficient (in percent %).

    The main evaluation criterion will be the relative variation (in percent %) of the damping coefficient (in /s) of the medial gastrocnemius muscle measured with an accelerometer, at the beginning (the first five minutes) and at the end (the last five minutes) of 21 km at a speed corresponding to 70% of the maximum aerobic speed (MAS) on a treadmill, carried out by experienced amateurs during two shoe conditions: soft and firm sole.

    From the beginning to the end of the 21 km race.

Secondary Outcomes (8)

  • Temporal evolution of vibrations measurements.

    Kilometers : 1st, 3rd, 6th, 9th, 12th, 15th, 18th, 21st

  • Evaluation of improved vibration damping on neuromuscular fatigue : isometric force

    From the beginning to the end of the 21 km race.

  • Evaluation of improved vibration damping on neuromuscular fatigue : jerk amplitude.

    From the beginning to the end of the 21 km race.

  • Evaluation of improved vibration damping on neuromuscular fatigue : level of voluntary activation.

    From the beginning to the end of the 21 km race.

  • Evaluation of improved vibration damping on neuromuscular fatigue : plantar flexors.

    From the beginning to the end of the 21 km race.

  • +3 more secondary outcomes

Study Arms (2)

Hard shoes runners

EXPERIMENTAL

Half-marathon runners with hard shoes preceded and followed by assessment of neuromuscular fatigue.

Other: "hard shoes" runners evaluation

Soft shoes runners

ACTIVE COMPARATOR

Half-marathon runners with soft shoes preceded and followed by assessment of neuromuscular fatigue.

Other: "Soft shoes" runners evaluation

Interventions

The "hard shoes" runners get on the treadmill for 21 km at a speed corresponding to 70 percent (%) of their the maximum aerobic speed (MAV) and are evaluated.

Hard shoes runners

The "soft shoes" runners get on the treadmill for 21 km at a speed corresponding to 70 percent (%) of their the maximum aerobic speed (MAV) and are evaluated.

Soft shoes runners

Eligibility Criteria

Age18 Years - 65 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Endurance runners doing a long run of at least 20 km once a week.
  • Affiliated or beneficiaries of a social security plan.
  • Have freely given their written consent.
  • Not participating in a competition during the study period.
  • Shoe size 37 to 46

You may not qualify if:

  • Any subject who has been injured in the 3 months preceding the protocol
  • Any subject with chronic joint pathologies (e.g., repeated sprains, patellar or ligament problems) or cardiac pathologies.
  • Any subject with chronic or central neurological pathologies
  • Any subject participating at the same time in another medical interventional experiment
  • Any subject who has taken corticosteroids within 3 months (inhalation, infiltration or history of prolonged corticosteroid therapy).
  • Any subject deprived of liberty or under legal protection (guardianship, curatorship, safeguard of justice, family habilitation).
  • Any subject declaring to have taken products prohibited by the World Anti-Doping Agency

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre Hospitalier Universitaire de Saint-Etienne

Saint-Etienne, 42055, France

Location

MeSH Terms

Conditions

Muscle Weakness

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and Symptoms

Study Officials

  • LEONARD FEASSON, MDPHD

    CHU de Saint-Etienne

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2023

First Posted

October 31, 2023

Study Start

June 15, 2022

Primary Completion

December 15, 2022

Study Completion

January 6, 2023

Last Updated

December 1, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations