Adolescent BehaviorNCT06308809
Effect of PNF Training as an Intervention for Functional Ankle Instability in College Student
A study testing PNF training in people with Adolescent Behavior, run by Ma Shuzhen.
Trial summary
The lower limb stability test was carried out by MicroSwing 6.0 gravity center moving trajectory tester made in Germany. Read more about this study
- Who is it for?
- Ages 18 to 23 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Adolescent Behavior
- What is being tested?
- PNF training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- No sites listed yet
- Study dates
- 30 Mar 2024to 20 Jun 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 23 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Unilateral functional ankle instability;
- Have not received formal rehabilitation treatment or informal rehabilitation treatment within the past month;
- Voluntarily accept the treatment in this study and ensure to complete the training tasks arranged by the therapist;
- Aged between 18 and 23 years old;
Who cannot join
- Does not meet the above diagnostic criteria;
- Ankle pain caused by infectious diseases;
- suffering from severe neurological diseases;
- Soft tissue damage near the ankle joint;
- Other joints outside the ankle are unstable.
Trial locations and contacts
No sites are listed yet.
About this study
The lower limb stability test was carried out by MicroSwing 6.0 gravity center moving trajectory tester made in Germany.
Read the detailed description
The test steps and methods are as follows:
- Before the test, arrange the subjects to be familiar with the lower limb stability test system and test environment, and master the test method.
- The subject stands barefoot and one foot in the center of the center of gravity movement trajectory tester, with his hands placed on his sides naturally, and maintains his body balance for 30 seconds.
- Record data of the test system.
- The measurement was repeated three times with a time interval of 5min. Collect the test data of the center of gravity moving trajectory tester, including swing frequency, coordination coefficient and stability coefficient, and get the best results of the three tests. The smaller the oscillation frequency and coordination coefficient are within a certain range, the better the stability is. The greater the value of stability coefficient is within a certain range, the better the stability is.
- Conditions
- Adolescent Behavior
- Being tested
- PNF training
- Keywords
- adolescent population, PNF training
- Medical subject headings
- Adolescent Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PNF trainingOther
The subjects underwent rehabilitation training for 8 weeks, three times a week (Monday, Wednesday and Friday, 6:00 PM to 10:00 PM in the Physical Education College of Guangxi Normal University), and the rehabilitation training time was about 40-45 minutes per person. Before each rehabilitation training, the subjects warmed up the ankle and lower leg muscles for 5 minutes, followed by the corresponding rehabilitation training for 30-35 minutes, and relaxed the ankle and lower leg muscles for 5 minutes after the training.
| Study group | Role | What they receive |
|---|---|---|
| PNF training group | Experimental | The experimental group will undergo 60 minutes of PNF training. Receives: Other: PNF training |
| Control training group | Other | The control group will follow the curriculum standards set by the Sports University. Receives: Other: PNF training |
What is being measured
The primary outcome is the main question the study is designed to answer.
CAIT score
CAIT consists of 9 questions with a total of 30 points, scoring ≦27 points for diagnosis of functional ankle instability, 28 points and above for diagnosis of non-functional ankle instability.
- Before issuing the questionnaire, explain the contents of the questionnaire to the subjects in detail, and the subjects fill in the questionnaire truthfully according to their own situation.
- The CAIT score of the subjects was calculated and recorded.
- If you fill in the questionnaire incorrectly, you need to fill it again and keep a record
Measured: Baseline, post-test after 8 weeks
Lower limb stability test
The lower limb stability test was carried out by MicroSwing 6.0 gravity center moving trajectory tester made in Germany. The test steps and methods are as follows:
- Before the test, arrange the subjects to be familiar with the lower limb stability test system and test environment, and master the test method.
- The subject stands barefoot and one foot in the center of the center of gravity movement trajectory tester, with his hands placed on his sides naturally, and maintains his body balance for 30 seconds.
- Record data of the test system.
- The measurement was repeated three times with a time interval of 5min. Collect the test data of the center of gravity moving trajectory tester, including swing frequency, coordination coefficient and stability coefficient, and get the best results of the three tests.
Measured: Baseline, post-test after 8 weeks
Star offset balance test
The subjects stood in the center of the star chart with the affected side foot as the supporting foot, with bare feet and one foot in the center. The healthy side foot was extended forward, outward front, outer front, outer back, back, inner back, inner and inner front respectively to the farthest distance as far as possible. The supporting foot was extended in the counterclockwise direction when the left foot was used, and the supporting foot was extended in the clockwise direction when the right foot was used. The subject withdrew the non-supporting foot and resumed standing with both feet and rested for 5 seconds. The data of each extension of the subject was recorded, and the farthest score was measured three times. The furthest results in each direction were standardized with the subjects' lower limb length, and the data were recorded.
(4) The furthest scores in each direction were standardized with the subjects' lower limb length, and the data were recorded.
Measured: Baseline, post-test after 8 weeks
Muscle strength test
MicroFET2 hand-held muscle strength tester made in Germany was used for muscle strength test. The test steps and methods are as follows:
- Before the test, arrange the subjects to be familiar with the handheld muscle strength test system and test environment, and master the test method.
- The subject took off his shoes and socks and lay on his back on the recovery bed with his hands naturally placed on his chest. The muscle strength of the subject's dorsalis, plantar flexus, varus and valgus were tested respectively.
- Record data of the test system.
- The measurement was repeated 5 times in each direction of movement. The test data of handheld muscle strength tester were collected, including the muscle strength of ankle dorsiflexion, plantar flexion, varus and valgus, and the best results of 5 tests were obtained.
Measured: Baseline, post-test after 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Mar 2024
- Study start30 Mar 2024 (estimated)
- Primary completion30 May 2024 (estimated)
- Study completion20 Jun 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Adolescent BehaviorStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Ma Shuzhen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Ma Shuzhen, Universiti Putra Malaysia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06308809
- Sponsor's protocol ID
- Shuzhen Ma
- Status last verified
- Mar 2024
- First submitted
- 5 Mar 2024
- Last updated
- 15 Mar 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Liao W, Xu S, Wang R, Zhang J. The interventional effects of PNF training on functional ankle instability in habitually active adults. Front Public Health. 2026 Aug 26;14:1923487. doi: 10.3389/fpubh.2026.1923487. eCollection 2026.
PubMed 42718668
Study at a glance
From the registry record, last updated by the sponsor on 15 Mar 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of PNF Training as an Intervention for Functional Ankle Instability in College Student
- ClinicalTrials.gov ID
- NCT06308809
- Acronym / sponsor ID
- Shuzhen Ma
- Conditions
- Adolescent Behavior
- Keywords
- adolescent population, PNF training
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Ma ShuzhenUniversity, hospital or other
- Study start
- 30 Mar 2024 (estimated)
- Primary completion
- 30 May 2024 (estimated)
- Study completion
- 20 Jun 2024 (estimated)
- First posted
- 13 Mar 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The lower limb stability test was carried out by MicroSwing 6.0 gravity center moving trajectory tester made in Germany.
Detailed description
The test steps and methods are as follows:
- Before the test, arrange the subjects to be familiar with the lower limb stability test system and test environment, and master the test method.
- The subject stands barefoot and one foot in the center of the center of gravity movement trajectory tester, with his hands placed on his sides naturally, and maintains his body balance for 30 seconds.
- Record data of the test system.
- The measurement was repeated three times with a time interval of 5min. Collect the test data of the center of gravity moving trajectory tester, including swing frequency, coordination coefficient and stability coefficient, and get the best results of the three tests. The smaller the oscillation frequency and coordination coefficient are within a certain range, the better the stability is. The greater the value of stability coefficient is within a certain range, the better the stability is.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PNF training group | Experimental | Other: PNF trainingThe experimental group will undergo 60 minutes of PNF training. |
| Control training group | Other | Other: PNF trainingThe control group will follow the curriculum standards set by the Sports University. |
Who may qualify
- Ages
- 18 to 23 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Unilateral functional ankle instability;
- Have not received formal rehabilitation treatment or informal rehabilitation treatment within the past month;
- Voluntarily accept the treatment in this study and ensure to complete the training tasks arranged by the therapist;
- Aged between 18 and 23 years old;
Key exclusion criteria (5 listed)
- Does not meet the above diagnostic criteria;
- Ankle pain caused by infectious diseases;
- suffering from severe neurological diseases;
- Soft tissue damage near the ankle joint;
- Other joints outside the ankle are unstable.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PNF trainingThe subjects underwent rehabilitation training for 8 weeks, three times a week (Monday, Wednesday and Friday, 6:00 PM to 10:00 PM in the Physical Education College of Guangxi Normal University), and the rehabilitation training time was about 40-45 minutes per person. Before each rehabilitation training, the subjects warmed up the ankle and lower leg muscles for 5 minutes, followed by the corresponding rehabilitation training for 30-35 minutes, and relaxed the ankle and lower leg muscles for 5 minutes after the training. | Other | Control training group, PNF training group |
Primary outcome
CAIT score
Time frame: Baseline, post-test after 8 weeks
CAIT consists of 9 questions with a total of 30 points, scoring ≦27 points for diagnosis of functional ankle instability, 28 points and above for diagnosis of non-functional ankle instability. 1. Before issuing the questionnaire, explain the contents of the questionnaire to the subjects in detail, and the subjects fill in the questionnaire truthfully according to their own situation. 2. The CAIT score of the subjects was calculated and recorded. 3. If you fill in the questionnaire incorrectly, you need to fill it again and keep a record
Lower limb stability test
Time frame: Baseline, post-test after 8 weeks
The lower limb stability test was carried out by MicroSwing 6.0 gravity center moving trajectory tester made in Germany. The test steps and methods are as follows: 1. Before the test, arrange the subjects to be familiar with the lower limb stability test system and test environment, and master the test method. 2. The subject stands barefoot and one foot in the center of the center of gravity movement trajectory tester, with his hands placed on his sides naturally, and maintains his body balance for 30 seconds. 3. Record data of the test system. 4. The measurement was repeated three times with a time interval of 5min. Collect the test data of the center of gravity moving trajectory tester, including swing frequency, coordination coefficient and stability coefficient, and get the best results of the three tests.
Star offset balance test
Time frame: Baseline, post-test after 8 weeks
The subjects stood in the center of the star chart with the affected side foot as the supporting foot, with bare feet and one foot in the center. The healthy side foot was extended forward, outward front, outer front, outer back, back, inner back, inner and inner front respectively to the farthest distance as far as possible. The supporting foot was extended in the counterclockwise direction when the left foot was used, and the supporting foot was extended in the clockwise direction when the right foot was used. The subject withdrew the non-supporting foot and resumed standing with both feet and rested for 5 seconds. The data of each extension of the subject was recorded, and the farthest score was measured three times. The furthest results in each direction were standardized with the subjects' lower limb length, and the data were recorded. (4) The furthest scores in each direction were standardized with the subjects' lower limb length, and the data were recorded.
Muscle strength test
Time frame: Baseline, post-test after 8 weeks
MicroFET2 hand-held muscle strength tester made in Germany was used for muscle strength test. The test steps and methods are as follows: 1. Before the test, arrange the subjects to be familiar with the handheld muscle strength test system and test environment, and master the test method. 2. The subject took off his shoes and socks and lay on his back on the recovery bed with his hands naturally placed on his chest. The muscle strength of the subject's dorsalis, plantar flexus, varus and valgus were tested respectively. 3. Record data of the test system. 4. The measurement was repeated 5 times in each direction of movement. The test data of handheld muscle strength tester were collected, including the muscle strength of ankle dorsiflexion, plantar flexion, varus and valgus, and the best results of 5 tests were obtained.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Mar 2024.
- Derived from this study: PubMed 42718668Liao W, Xu S, Wang R, Zhang J. The interventional effects of PNF training on functional ankle instability in habitually active adults. Front Public Health. 2026 Aug 26;14:1923487. doi: 10.3389/fpubh.2026.1923487. eCollection 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Questions about this trial
What is this clinical trial studying?
A study testing PNF training in people with Adolescent Behavior, run by Ma Shuzhen.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 15 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Shuzhen Ma (18377336078, msz20210607@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
CAIT score (time frame: Baseline, post-test after 8 weeks). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06308809, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Mar 2024.