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Immediate Effects of Two Ankle Mobilization Techniques in the Amplitude of Dorsiflexion and Dynamic Valgus Knee

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: NCT03171233
Recruitment Status : Unknown
Verified May 2017 by Gabriel Peixoto Leão Almeida, Universidade Federal do Ceara.
Recruitment status was:  Recruiting
First Posted : May 31, 2017
Last Update Posted : May 31, 2017
Information provided by (Responsible Party):
Gabriel Peixoto Leão Almeida, Universidade Federal do Ceara

Brief Summary:
Dynamic knee valgus is an inadequate biomechanical movement of multifactorial cause that may expose the individual to various injuries. The range of motion of ankle dorsiflexion is one of the possible influencing factors. This study intends to compare the immediate effect of two techniques on ankle mobility and dynamic knee valgus.

Condition or disease Intervention/treatment Phase
Ankle Joint Contracture Knee Injuries and Disorders Other: Mobilization with movement Other: Self mobilization with movement Not Applicable

Detailed Description:

This study aims to verify the immediate effects of ankle mobilization on dynamic knee valgus and to compare two techniques of ankle mobility. It will include 102 lower limbs that present deficit of ankle dorsiflexion and dynamic knee valgus in the same lower limb.

Participants will be divided into two groups, one for ankle mobilization with movement aided by the therapist and another for self mobilization of the ankle. The two intervention groups will do the same protocol, same number of sets, repetitions and rest time.There will be randomisation allocation of individuals in the groups and because of the nature of the interventions only the evaluator may be blind.

The Kolmogorov - Smirnov test is used to verify the data distribution normality. The characterization of the participants is performed by means of descriptive statistical analysis. Parametric or non-parametric tests will be used according to the data distribution normality for comparison between groups at baseline. The evaluator blinding will be tested using the chi -square test by comparing the randomization code with the evaluator opinion. The difference between the groups and their respective confidence intervals will be calculated by linear mixed models using interaction term of "time versus group."

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 102 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Immediate Effects of Two Ankle Mobilization Techniques in the Amplitude of Dorsiflexion and Dynamic Valgus Knee: a Random Clinical Test
Actual Study Start Date : April 5, 2017
Estimated Primary Completion Date : June 30, 2017
Estimated Study Completion Date : December 1, 2017

Arm Intervention/treatment
Active Comparator: Group mobilization with movement
Techniques to improve ankle mobility that possibily will to cause changes in the biomechanical motion of the lower limb. The patient does the movement actively, but is assisted by the therapist to mobilize.
Other: Mobilization with movement
Participants Mobilization Group with Movement are positioned knee facing the physiotherapist, are not elastic passages above the participant's malleolus and are from the physiotherapist's pelvis. The therapist applies a posterolateral slip sustained to a tibia through the belt, leaning backward, while the talus and forefoot are secured with the space between the thumb and the second finger of the hand of both hands. The participant will be instructed to perform a slow dorsiflexion movement for their maximum amplitude.

Active Comparator: Group Self mobilization with movement
Techniques to improve ankle mobility that possibily will to cause changes in the biomechanical motion of the lower limb. The patient performs the movement and the mobilization in an independently way without receiving help from the therapist
Other: Self mobilization with movement
In the Auto Mobilization with Movement group, participants will self-mobilize the ankle on top of a box (15 centimeters with a 10 ° incline), a non-elastic band will pass below the malleoli and the back of the band will be placed in the middle of the other Lower limb, thus mobilizing the talus in the posteroinferior direction, the participant should maintain the force in that direction while making the dorsiflexion movement in closed kinetic chain until returning to the initial position again. Using the same group protocol as the therapist will help.

Primary Outcome Measures :
  1. Range of motion of ankle dorsiflexion Range of motion of ankle dorsiflexion [ Time Frame: Immediately after intervention ]
    Closed kinetic chain evaluation to find the greatest distance between the foot and the wall without compensations

  2. Angle of projection in the frontal plane. [ Time Frame: Immediately after intervention ]
    190/5000 Will be measured during the conduct of the Forward Step-Down Test through 2D-captured footage using a digital camera that will be positioned within 2 meters of the step.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 35 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Physically active individuals (30 minutes of moderate physical activity at least three times a week with at least 6 months of practice); Men or women ranging in age from 18 to 35 years; (With a value equal to or less than 10 cm in the measuring tape and / or 2 cm difference between the limbs) and dynamic knee valgus (center of the patella surpassing the midpoint between the malleoles ) evaluated by Forward Step Down Test (FSDT).

Exclusion Criteria:

  • Patients who present any of these conditions will be excluded from the study: chronic ankle instability, previous surgery on the joints of the foot, ankle, knee, hip or ankle joint injury in the last 2 years that caused more than 1 month of withdrawal; Recent muscular or skeletal injuries that do not allow the exercises to be performed; Severe cardiac conditions or other pathological conditions that make physical therapy impossible.

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): NCT03171233

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Contact: Gabriel PL Almeida, MsC 5585999590400 GABRIEL_ALM@HOTMAIL.COM
Contact: Pedro OP Lima, PhD +55(85)33668632

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Federal University of Ceara Recruiting
Fortaleza, Ceará, Brazil, 60430-160
Contact: Gabriel PL Almeida, MSc    +55(85)99590400   
Contact: Pedro OP Lima, Dr    +55(85)3366 8632   
Sponsors and Collaborators
Universidade Federal do Ceara
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Principal Investigator: Gabriel PL Almeida, MsC Universidade Federal do Ceara

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Responsible Party: Gabriel Peixoto Leão Almeida, Master, Universidade Federal do Ceara Identifier: NCT03171233    
Other Study ID Numbers: TCC_Fernanda
First Posted: May 31, 2017    Key Record Dates
Last Update Posted: May 31, 2017
Last Verified: May 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Knee Injuries
Joint Diseases
Musculoskeletal Diseases
Muscular Diseases
Leg Injuries
Wounds and Injuries