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Flexibility Deficit in Chronic Ankle Instability

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04083391
Recruitment Status : Completed
First Posted : September 10, 2019
Last Update Posted : September 10, 2019
Information provided by (Responsible Party):
Abd Elhady Samy Abu Mandour, Cairo University

Brief Summary:
chronic ankle instability could be associated with some proximal deficits as in hip and knee regions. these deficits include alternations in motor neurons pools excitability, muscle strength, kinematics and kinetics. this study add muscle inflexibility to the preciouse literature.

Condition or disease
Chronic Ankle Instability

Detailed Description:
Background: influence of a localized injury in a distal joint on the function of proximal muscles is an important consideration in assessment and treatment of musculoskeletal injuries. Up to the investigator's knowledge, there is no study assess flexibility changes in CAI. Objectives: The objective of this study is to investigate Hamstring flexibility in CAI. Material and methods: The study conducted on 42 subjects with unilateral CAI and controls had measure of hamstring flexibility using digital inclinometer during passive knee extension test .Results: Revealed statistical and clinical significant difference between non-injured control group and CAI group with decreased hamstring flexibility in the later. Conclusion: CAI subjects have proximal muscular affection include hamstring tightness which may alter sacroiliac joint stability and subsequently back pain.

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Study Type : Observational
Actual Enrollment : 42 participants
Observational Model: Case-Control
Time Perspective: Cross-Sectional
Official Title: Is Hamstring Flexibility Affected in Chronic Ankle Instability
Actual Study Start Date : May 7, 2016
Actual Primary Completion Date : December 30, 2016
Actual Study Completion Date : March 9, 2017

CAI group
assessment had been done to this group that include patients with ankle sprain injury from more than one year and complain with repetitive injuries, giving way and instability feelings
non injured ankle group
assessment had been done to this group that include control participants had not injured their ankle before and matched with CAI in age, gender, dominant side

Primary Outcome Measures :
  1. Hamstring muscle flexibility [ Time Frame: throughout the study average 1 year ]
    angle between tibia and femur during passive knee extension test

Biospecimen Retention:   None Retained
21 patients with CAI and 21 participants without ankle sprain injury

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Ages Eligible for Study:   18 Years to 30 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Outpatients clinic faculty of physical therapy Cairo university

Inclusion Criteria:

  • The control group was self-reported to be healthy
  • Had no ankle injury history
  • Matched with CAI patients in gender, dominance side and simulated injured side
  • CAI group had a self-report of a past history of unilateral ankle inversion injury since at least more than 1 year before the study onset which required a period of protected weight bearing and/or immobilization at least one day
  • Patient reported a tendency for the ankle to give way and/or recurrent ankle sprain
  • Perceives that the ankle was chronically weaker, more painful and/or less functional than the other ankle or than before first

Exclusion Criteria:

  • Had a history of lower extremity injury
  • Surgery or fracture
  • History of low back dysfunction that required medical or surgical intervention within the last year, Current participation in formal or informal rehabilitation
  • History of hamstring strain
  • Bilateral ankle sprain injury
  • Ankle injury within 3 months of participation
  • History of ankle fracture and any neuromuscluskeletal disease could affect the condition.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04083391

Sponsors and Collaborators
Cairo University
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Study Chair: Afaf Tahoon, Master assistant lecturer faculty of physical therapy Cairo university
  Study Documents (Full-Text)

Documents provided by Abd Elhady Samy Abu Mandour, Cairo University:
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Responsible Party: Abd Elhady Samy Abu Mandour, Principal investigator, Cairo University Identifier: NCT04083391    
Other Study ID Numbers: P.T.REC/012/001312
First Posted: September 10, 2019    Key Record Dates
Last Update Posted: September 10, 2019
Last Verified: September 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description: IPD had been planed to be shared with research team only through specific username and password
Keywords provided by Abd Elhady Samy Abu Mandour, Cairo University:
chronic ankle instability
Additional relevant MeSH terms:
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Joint Instability
Joint Diseases
Musculoskeletal Diseases