Ankle Strengthening in Athletes With Chronic Ankle Instability

NCT ID: NCT06801483

Last Updated: 2025-01-30

Basic Information

• Recruitment Status: ENROLLING_BY_INVITATION
• Clinical Phase: NA
• Total Enrollment: 80 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-08-01
• Study Completion Date: 2025-07-31

Brief Summary

Chronic ankle instability (CAI) is a common complication following an ankle sprain, affecting joint stability and leading to decreased muscle strength and poor neuromuscular control. These symptoms can significantly impact athletes' sports performance. Rehabilitation training for CAI majorly involves strengthening or balance training. Few studies have discussed treatment plans that combine the above two training, and the effectiveness of combined training is similar to that of single training content. Due to the lack of machines to train ankle strength, thera-bands were often used for ankle strengthening. However, the resistance thera-bands provide is limited and may need more for athletes requiring high-intensity training. In recent years, a local company has developed a multiaxial ankle training system for machine-based ankle strengthening. This machine allows for training the ankle joint in various directions while sitting and can provide greater training resistance. As this machine has recently been developed and there is seldom evidence for its use in training, this project aims to discuss the effectiveness of using the ankle training machine in athletes with chronic ankle instability. This study will compare the differences in muscle strength, morphology, muscle material properties, balance ability, and functional performance of athletes after a six-week combined training program with thera-band or the multiaxial ankle training system for providing resistance. Thereby establishing a training plan for athletes suffering from chronic ankle instability.

Conditions

Chronic Ankle Instability, CAI; Athletes

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: OTHER
• Blinding Strategy: SINGLE

Study Groups

multiaxial ankle training system

These subjects will train their ankle strength by the multiaxial ankle training system

Group Type: EXPERIMENTAL

Strengthening

Intervention Type: OTHER

All subjects will recieve an ankle muscle strenghening training program twice a week for six weeks.

thera-band

These subjects will train their ankle strength by thera-band

Group Type: ACTIVE_COMPARATOR

Strengthening

Intervention Type: OTHER

All subjects will recieve an ankle muscle strenghening training program twice a week for six weeks.

Interventions

Strengthening

All subjects will recieve an ankle muscle strenghening training program twice a week for six weeks.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Unilateral CAI: Cumberland Ankle Instability Tool (CAIT) score ≤ 24
• Age between 18 and 28 years
• Engages in sports training at least 3 days a week, for more than 1 hour each session
• Able to perform training and assessment movements

Exclusion Criteria

• Bilateral CAI
• Less than 6 months since the first ankle sprain
• Acute ankle sprain within the last 6 weeks
• Foot or ankle surgery within the last 3 months
• Neuromuscular diseases.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 28 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Science and Technology Council, Taiwan

OTHER_GOV

Sponsor Role: collaborator

China Medical University Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Chia-Ming Chang, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

China Medical University, China

Locations

China Medical University

Taichung, , Taiwan

Countries

Taiwan

Other Identifiers

NSTC 113-2410-H-039-015 -

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

CMUH112-REC1-116(AR1)

Identifier Type: -

Identifier Source: org_study_id