Evaluation for the Effect of Smartphone Based Training on Chronic Ankle Instability Subjects

Not Applicable

Completed

• Conditions: Chronic Ankle Instability
• Interventions: Other: Home Balance training; Other: App Balance training

• Registration Number: NCT03849547
• Lead Sponsor: National Yang Ming Chiao Tung University

Brief Summary

This study aims to verify the training effect of smartphone-based training for chronic ankle instability(CAI) subjects. By randomizing subjects to App training group, clinical training group and control group, the training effect will be compared among groups.

Detailed Description

Postural control ability may be damaged after ankle sprains. Poor postural control ability is the risk factors of the ankle sprain, forming a vicious circle of recurrent sprains. Proper and early assessment is the key to breaking down the circle. Smartphones have been utilized in the medical field. With built-in sensors, utilizing smartphones as assessment tools can provide quantitative data of postural control performance. This study aims to verify the training effect of smartphone-based training for CAI subjects.

CAI subjects were recruited and randomly assigned to App training group, Home training group and control group, receiving 6 weeks of intervention. Pre-test was conducted before the intervention, and the post-test was conducted after the 6-week intervention. The follow up assessment was conducted 4 weeks after the post-test.

Study Timeline

• Study Start: 2019-02-18
• Study First Submitted: 2019-02-20
• Study First Submitted QC: 2019-02-20
• Study First Posted: 2019-02-21
• Primary Completion: 2020-01-15
• Study Completion: 2020-01-31
• Status Verified: 2020-02
• Last Update Submitted: 2020-02-12
• Last Update Posted: 2020-02-17

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 46

Inclusion Criteria

• At least one ankle sprain history
• At least 2 times of sprain and feeling unstable
• Diagnosed as functional ankle instability
• Full recovered from injury
• Cumberland Ankle Instability Tool<24
• Ankle Instability Instrument >5 yes
• Identification of Functional Ankle Instability >11

Exclusion Criteria

• Diagnosis as mechanical instability
• Neurological deficits
• Lower extremity injury within the past 6 wk
• History of lower-extremity surgery
• Other conditions known to affect balance

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Home training group	Home Balance training	Subjects in Home training group will receive Home Balance training advised by physical therapist.
App training group	App Balance training	Subjects in App training group will receive App Balance training via smartphone application.

Primary Outcome Measures

Name	Time	Method
Star Excursion Balance Test	5 minutes	To assess the dynamic balance ability of subjects.
Postural sway measurement	30 seconds	Using smartphone application and force plate to record the postural sway during single leg stance.

Secondary Outcome Measures

Name	Time	Method
Foot and Ankle Outcome Score	5 minutes	An ankle function assessment tool, with 5 dimensions includes symptoms, pain, activity, function and sport, and quality of life.; The scale score ranges from 0% to 100%, the higher the percentage, the better ankle function. Subjects answer the questions by choosing different choices that describe their condition the best.; The total score will be summed up and calculated as percentage.
Foot and Ankle Ability Measure-sport subscale	5 minutes	An ankle function assessment tool. The scale score ranges from 0% to 100%, the higher the percentage, the better ankle function. Subjects answer the 7 questions by choosing different degree of difficulty to accomplish the activities.; The total score will be summed up and calculated as percentage.

Trial Locations

Locations (1)

Yang Ming university; 🇨🇳 Taipei, Taiwan