A Study on the Biomechanical Mechanisms of Orthotic/Physical Training Correction of Hallux Valgus and Its Impact on the Lower Limbs

NCT ID: NCT07036120

Last Updated: 2025-07-15

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

RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-03

Study Completion Date

2025-12-31

Brief Summary

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The study population of this project is mainly young people. Our goal is to investigate the kinematic and kinetic characterization brought about by different conservative treatment modalities for hallux valgus. The main study involves recruiting volunteers, grouping them into 12-week interventions with orthotics or foot exercises, and analyzing the kinematic and kinetic alterations in young and middle-aged subjects before, during, and after cessation of the interventions by motion capture, surface electromyography, and musculoskeletal ultrasound. A database of human biomechanical characteristics was constructed through in-vivo exercise techniques to analyze changes in the biomechanical characteristics of the population with hallux valgus after the use of different intervention methods.

Detailed Description

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Conditions

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Hallux Valgus Deformity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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OR group

The orthotic group was asked to wear a prefabricated toe orthotic (FORTH, China) on both feet at night each day, which was uniformly procured through an online shopping route prior to the start of the intervention. Subjects were required to wear the orthotics for a minimum of 8 hours per day and were monitored by uploading photos daily. Before the start of the intervention, the patients were instructed on the use of the orthoses and were given a demonstration of wearing the orthoses.

Group Type EXPERIMENTAL

orthosis

Intervention Type DEVICE

(1) one pair of two orthoses, regardless of the right and left sides; (2) loosen the two Velcro straps, put the large Velcro strap into the arch of the foot, and put the small Velcro strap on the thumb; (3) place the rigid plastic fixation plate along the medial edge of the foot and align the axis of rotation with the 1st metatarsalphalangeal joint; (4) tighten the Velcro straps as much as possible to prevent dislocation of the orthoses, without interfering with sleep; (5) tighten the Velcro straps to prevent dislocation of the orthoses, and to prevent the orthoses from moving out of position. Tighten the Velcro straps as much as possible without disturbing sleep to prevent the orthosis from shifting and to position the phalanx correctly in the outer table. Contact the laboratory staff for a new pair of orthotics if the adhesive tape is not sufficiently sticky to maintain positional fixation during sleep.

EX group

The exercise training group was asked to implement an exercise program for no less than days 5 days per week, and in addition to the fascia ball and elastic bands (LI-NING, China) required for training, subjects were also given a document containing a textual description of the exercise program and a prerecorded video of the actual exercise, which contained information about the exercise position, number of repetitions, duration of contraction, rest time between sets, frequency, and precautions. They were monitored by uploading daily exercise hours and photos, and problems affecting their compliance were addressed.

Group Type EXPERIMENTAL

foot exercises

Intervention Type BEHAVIORAL

1. Warm-up: 30 seconds per movement

1. Joint loosening
2. Plantar relaxation
2. Toe spreading: 10 reps/set, 3 sets/day
3. Toe grasping towel: 10 times/set, 3 sets/day
4. Standing Heel Raise: 10 times/group, 3 groups/day
5. Short Foot Exercise: 10 times/sets, 3 sets/day
6. Relax the soles of the feet again at the end of all exercises.

Interventions

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orthosis

(1) one pair of two orthoses, regardless of the right and left sides; (2) loosen the two Velcro straps, put the large Velcro strap into the arch of the foot, and put the small Velcro strap on the thumb; (3) place the rigid plastic fixation plate along the medial edge of the foot and align the axis of rotation with the 1st metatarsalphalangeal joint; (4) tighten the Velcro straps as much as possible to prevent dislocation of the orthoses, without interfering with sleep; (5) tighten the Velcro straps to prevent dislocation of the orthoses, and to prevent the orthoses from moving out of position. Tighten the Velcro straps as much as possible without disturbing sleep to prevent the orthosis from shifting and to position the phalanx correctly in the outer table. Contact the laboratory staff for a new pair of orthotics if the adhesive tape is not sufficiently sticky to maintain positional fixation during sleep.

Intervention Type DEVICE

foot exercises

1. Warm-up: 30 seconds per movement

1. Joint loosening
2. Plantar relaxation
2. Toe spreading: 10 reps/set, 3 sets/day
3. Toe grasping towel: 10 times/set, 3 sets/day
4. Standing Heel Raise: 10 times/group, 3 groups/day
5. Short Foot Exercise: 10 times/sets, 3 sets/day
6. Relax the soles of the feet again at the end of all exercises.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Hallux valgus angle \> 15°
* Age 18-45 years
* Right leg dominant (based on the Waterloo Foot Questionnaire)
* Bilateral hallux valgus

Exclusion Criteria

* History of lower limb surgery or neuromuscular diseases causing gait abnormalities (such as lumbar disc herniation and chronic ankle instability)
* Any treatment for hallux valgus within the past 3 months
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Wan Xinzhu

OTHER

Sponsor Role lead

Responsible Party

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Wan Xinzhu

Principal Investigator, Master's Candidate, Department of Basic Medical Sciences, Southern Medical University

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Southern Medical University

Guangzhou, Guangdong, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Lei Qian

Role: CONTACT

+8615626469836

Lei Qian

Role: CONTACT

Facility Contacts

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Lei Qian

Role: primary

+8615626469836

References

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Liu Y, Liu R, Wan X, Chen C, Wang Y, Yu W, OuYang J, Qian L, Liu G. The Effect of Short-Term Kinesiology Taping on Neuromuscular Controls in Hallux Valgus During Gait: A Study of Muscle and Kinematic Synergy. IEEE Trans Neural Syst Rehabil Eng. 2024;32:3199-3209. doi: 10.1109/TNSRE.2024.3451651. Epub 2024 Sep 5.

Reference Type BACKGROUND
PMID: 39208038 (View on PubMed)

Other Identifiers

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NFYKX003

Identifier Type: -

Identifier Source: org_study_id

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