Differences Between Long Distance Road Runners and Treadmill Runners in Achilles Tendon Structure

NCT ID: NCT06294093

Last Updated: 2026-01-26

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

Total Enrollment

48 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-06-10

Study Completion Date

2025-08-15

Brief Summary

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this study will investigate the structure of the Achilles tendon and functional tests in road runners compared to treadmill runners.

Detailed Description

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Healthy runners (road and treadmill runners) who run regularly at least twice a week for half an hour, over 80% of the training on the treadmill or road, will be recruited for the study.

All subjects will fill out a demographic questionnaire for personal details (age, sex, height, weight, past injuries, training). Each participant will undergo functional tests in random order: 1. Examination of the morphology of the Achilles tendon - will be examined by ultrasound tissue characterized (UTC) 2. Balance test - Y Balance Test 3. Proprioception test - AMEDA device 4. Muscle strength test - manual dynamometer for testing gastrocnemius muscle strength. 5. Gastrocnemius muscle endurance test - single leg heel raise test until fatigue.

A comparison will be made between the two study groups.

Conditions

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Achilles Tendon Injury

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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treadmill group

healthy subjects who run regularly at least twice a week for half an hour, over 80% of the training on treadmill.

No interventions assigned to this group

road group

healthy subjects who run regularly at least twice a week for half an hour, over 80% of the training on road.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* run regularly at least twice a week for half an hour,
* over 80% of the training on a treadmill or road

Exclusion Criteria

* pain or injury to Achilles tendon during the 6 months, preventing running for at least 3 days.
* past Achilles tendon surgeries,
* sprained ankle in the last six months,
* lower limb and back pain while running
* participants who report running with minimalist shoes.
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Zinman College of Physical Education and Sports Sciences

OTHER

Sponsor Role collaborator

University of Haifa

OTHER

Sponsor Role lead

Responsible Party

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Gali Dar

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Gali Dar, Prof.

Role: PRINCIPAL_INVESTIGATOR

University of Haifa

Locations

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The Academic College at Wingate

Netanya, , Israel

Site Status

Countries

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Israel

References

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Dar G, Waddington G, Stern M, Dotan N, Steinberg N. Differences Between Long Distance Road Runners and Trail Runners in Achilles Tendon Structure and Jumping and Balance Performance. PM R. 2020 Aug;12(8):794-804. doi: 10.1002/pmrj.12296. Epub 2020 Jan 18.

Reference Type RESULT
PMID: 31762215 (View on PubMed)

Other Identifiers

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026/24

Identifier Type: -

Identifier Source: org_study_id

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