Comparison of the Immediate Effects of Mobilization and Manipulation Versus Sham Manipulation on Plantar Pressure in Patients With Hallux Valgus
NCT ID: NCT07043439
Last Updated: 2025-06-29
Study Results
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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NOT_YET_RECRUITING
NA
60 participants
INTERVENTIONAL
2025-06-25
2025-08-25
Brief Summary
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Detailed Description
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In the intervention group, participants will receive both grade 3 mobilization and HVLA manipulation targeted at the first metatarsophalangeal joint. The procedures will be carried out by a physiotherapist with the participant in a prone position and the foot held in neutral alignment.
The control group will receive a sham manipulation applied under identical positioning and handling conditions, but without therapeutic force or joint cavitation. This approach is designed to mimic the procedure while avoiding any real biomechanical impact. To eliminate ethical concerns regarding withholding effective treatment, participants in the control group will be offered the actual intervention after all immediate post-intervention data are collected.
All interventions and assessments will be conducted on a single day. Pre- and post-intervention plantar pressure data will be captured using a pedobarographic system. Pain intensity, joint angles, and other self-reported outcomes will be recorded using validated tools, but their details are provided in the corresponding modules.
The study's novelty lies in its integration of pedobarography for objective quantification of plantar pressure changes following isolated manual interventions, which may offer new insight into the acute mechanical responses of the foot in hallux valgus cases.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Mobilization and Manipulation Group (MMG)
Participants in this group underwent high-velocity, low-amplitude (HVLA) chiropractic manipulation of the first metatarsophalangeal (MTP) joint by an experienced physical therapist, followed by grade 3 accessory mobilization.
Participants were placed in the prone (face-down) position during the procedure, and the foot was stabilized in a neutral position.
Manipulation: The therapist stabilized the first metatarsal bone with one hand while applying a quick, short traction force to the proximal phalanx of the first toe with the other hand.
Mobilization: Following manipulation, grade 3 rhythmic oscillations were applied to the same joint in accordance with the Maitland technique to increase joint play.
The entire procedure was completed in a single session, with evaluations conducted immediately before and after the intervention.
Mobilization
Participants receiving this intervention will undergo Grade 3 joint mobilization targeting the first metatarsophalangeal (1st MTP) joint. The technique will be administered by a licensed physiotherapist with the participant lying in the prone position and the foot in a neutral position.
Mobilization will be performed according to the Maitland concept, which defines Grade 3 as large-amplitude, rhythmic oscillatory movements applied within the range of motion but up to the limit of tissue resistance, without entering the paraphysiological space.
The goal of this technique will be to increase joint play and mobility, reduce stiffness, and potentially improve biomechanical alignment. The mobilization will last approximately 5 minutes, and outcome measures will be collected before and immediately after the session.
High-Velocity Low-Amplitude (HVLA) Manipulation
This intervention will involve the application of a high-velocity, low-amplitude (HVLA) thrust manipulation to the first metatarsophalangeal (1st MTP) joint. A licensed physiotherapist will perform the procedure with the participant positioned prone and the foot placed in a neutral alignment.
The therapist will stabilize the 1st metatarsal bone with one hand and apply a quick, controlled thrust to the proximal phalanx of the hallux in a dorsal direction using the other hand. The technique will be delivered with minimal amplitude and maximal speed, aiming to restore joint motion, reduce soft tissue tension, and stimulate neuromechanical reflexes.
The manipulation procedure will take approximately 2-3 minutes, including setup and execution. Pre- and post-intervention outcome measures will be used to assess its immediate effects.
Control Group (CG)
The control group individuals underwent sham manipulation in the same position (prone and neutral foot) and for the same duration. During the sham application, the therapist assumed the manipulation position, placed his hands on the first metatarsal, and created the impression that the application was being performed. However, no traction, pushing, mobilization, or high-speed movement was applied during this process.
This application was performed in a way that would make the participant believe they were receiving treatment, but without creating any biomechanical or neurophysiological effects.
Since the purpose of the sham group was to control for the placebo effect, evaluations were also conducted on the individuals in this group before and immediately after the application.
For ethical reasons, the real treatment protocol was also applied to these participants after the evaluations.
Sham Manipulation
Participants in the control group will receive a sham (placebo) intervention designed to mimic the real treatment in setup and duration, without applying any therapeutic mechanical stimulus. The sham procedure will be conducted by the same physiotherapist with participants lying prone and their foot in a neutral position.
The physiotherapist will place their hands around the 1st MTP joint as if a manipulation were to be performed and will maintain static contact for the same duration as in the experimental group. However, no thrust, traction, or mobilization force will be applied.
The sham intervention will also last approximately 10 minutes, ensuring consistency across groups. All assessments will be conducted immediately before and after the intervention to evaluate potential placebo effects.
Interventions
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Mobilization
Participants receiving this intervention will undergo Grade 3 joint mobilization targeting the first metatarsophalangeal (1st MTP) joint. The technique will be administered by a licensed physiotherapist with the participant lying in the prone position and the foot in a neutral position.
Mobilization will be performed according to the Maitland concept, which defines Grade 3 as large-amplitude, rhythmic oscillatory movements applied within the range of motion but up to the limit of tissue resistance, without entering the paraphysiological space.
The goal of this technique will be to increase joint play and mobility, reduce stiffness, and potentially improve biomechanical alignment. The mobilization will last approximately 5 minutes, and outcome measures will be collected before and immediately after the session.
High-Velocity Low-Amplitude (HVLA) Manipulation
This intervention will involve the application of a high-velocity, low-amplitude (HVLA) thrust manipulation to the first metatarsophalangeal (1st MTP) joint. A licensed physiotherapist will perform the procedure with the participant positioned prone and the foot placed in a neutral alignment.
The therapist will stabilize the 1st metatarsal bone with one hand and apply a quick, controlled thrust to the proximal phalanx of the hallux in a dorsal direction using the other hand. The technique will be delivered with minimal amplitude and maximal speed, aiming to restore joint motion, reduce soft tissue tension, and stimulate neuromechanical reflexes.
The manipulation procedure will take approximately 2-3 minutes, including setup and execution. Pre- and post-intervention outcome measures will be used to assess its immediate effects.
Sham Manipulation
Participants in the control group will receive a sham (placebo) intervention designed to mimic the real treatment in setup and duration, without applying any therapeutic mechanical stimulus. The sham procedure will be conducted by the same physiotherapist with participants lying prone and their foot in a neutral position.
The physiotherapist will place their hands around the 1st MTP joint as if a manipulation were to be performed and will maintain static contact for the same duration as in the experimental group. However, no thrust, traction, or mobilization force will be applied.
The sham intervention will also last approximately 10 minutes, ensuring consistency across groups. All assessments will be conducted immediately before and after the intervention to evaluate potential placebo effects.
Eligibility Criteria
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Inclusion Criteria
* Volunteer to participate in the study
* Have hallux valgus (those with a hallux valgus angle greater than 15 and a Manchester Scale score of B or higher)
Exclusion Criteria
* Having any neurological or psychiatric problems
18 Years
ALL
Yes
Sponsors
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SEFA HAKTAN HATIK
OTHER
Responsible Party
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SEFA HAKTAN HATIK
Asst. Professor
Principal Investigators
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SEFA H HATIK, Asst. Prof.
Role: PRINCIPAL_INVESTIGATOR
Sinop University
Locations
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Sinop University
Sinop, , Turkey (Türkiye)
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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CMT0009
Identifier Type: -
Identifier Source: org_study_id
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