To Analyze the Kinematic Change of Lower Limb During Jumping Task With Wearable Device - 2-year Program

Study Overview
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Brief Summary
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This study will be conducted in two years: In the first year, the investigators would verify the relation between wearable device and motion analysis and its validity and reliability. In advance, the investigators are going to observe the effect of dynamic taping in lower limb biomechanics of high-school soccer and basketball athletes. In the second year, the investigators would recruit high school soccer and basketball athletes to examine the effect of dynamic taping in lower limb biomechanics under fatigue.

Detailed Description
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In Taiwan, it was estimated that at least 1,000 cases of patients require anterior cruciate ligament (ACL) reconstruction annually. Despite the improving of surgical technique, there are only 65% patients who received the ACL reconstruction return to their pre-injury level of sport. Therefore, to prevent ACL injuries in athletes is critical. The mechanism of ACL injury is greatly associated with lower limb biomechanics. Motional analysis is the golden standard for biomechanics. However, with the advancement in technology, the investigators could explore lower limb biomechanics conveniently by wearable device. But the validity and reliability need further confirmation. According to previous studies, the investigators could predict the possibility of ACL injuries by the change of biomechanics, such as hip adduction, internal rotation and knee valgus. Dynamic taping is a newly developing technique with better elasticity and extensibility. Studies showed that dynamic taping improve the biomechanics of knee joint. Hence, the investigators can adjust the faulty movement as soon as possible to prevent the occurrence of ACL injuries. This study will be conducted in two years: In the first year, the investigators would verify the relation between wearable device and motion analysis and its validity and reliability. In advance, the investigators are going to observe the effect of dynamic taping in lower limb biomechanics of high-school soccer and basketball athletes. In the second year, the investigators would recruit high school soccer and basketball athletes to examine the effect of dynamic taping in lower limb biomechanics under fatigue.

Official Title
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To Analyze the Kinematic Change of Lower Limb During Jumping Task With Wearable Device - 2-year Program

Conditions
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Landing Error Scoring System (LESS)

Intervention / Treatment
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* Device: dynamic taping


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 1st Year: 16+ health volunteers 2nd Year: senior high school and college athlete Exclusion Criteria: Those who are unable to exercise due to acute joint, muscle or nerve injury in the lower extremities Lower extremity surgery within 1 year Head trauma within 6 months Those with vestibular injury within 6 months Allergic to Dynamic tape Pregnant Visual coordination impairment

Ages Eligible for Study
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Minimum Age: 16 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Intervention Model: Single Group Assignment
Interventional Model Description: The first year, the investigators would verify the relation between wearable device and motion analysis and its validity and reliability (n=15). And the investigators are going to observe the effect of dynamic taping in lower limb biomechanics of high-school soccer and basketball athletes (n=50). In the second year, the investigators would recruit high school soccer and basketball athletes to examine the effect of dynamic taping in lower limb biomechanics under fatigue (n=50). In order to exclude the influence of sequence and learning effect, a cross-over study was used, and the interval between the two tests was about 2 weeks.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Senior high school athletes in Taiwan<br>In the first year, the investigators would verify the relation between wearable device and motion analysis and its validity and reliability at stage I (n=15). And the investigators are going to observe the effect of dynamic taping in lower limb biomechanics of high-school soccer or basketball athletes (n=50) at stage II. In the second year, the investigators would recruit high school soccer and basketball athletes to examine the effect of dynamic taping in lower limb biomechanics under fatigue (n=50). | Device: dynamic taping<br>* The athletic trainer will intervene with spiral dynamic technique by using a dynamic tape for the first test and a sham dynamic tape for the second test, or reverse the order.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Understand the correlation between wearable devices (KinMAS system) and Vicon dynamic analysis system, and further assessment of the reliability and validity of the wearable devices (KinMAS system). | The investigators would recruit health volunteers (n=15) to verify the relation between wearable device and motion analysis and its validity and reliability. Vicon motion capture system (golden standard) and wearable device (KinMAS system) are used simultaneously to measure the angle changes of the trunk and lower limbs with jump-landing task and counter movement jump. | 1st Year | 
| Observe the effect of dynamic taping in lower limb biomechanics. | The investigators would recruit senior high school athletes (n=50) to compare the changes of trunk and lower extremities joint angles with dynamic taping intervention. Subjects need to wear the wearable device (KinMAS system) and take double-leg Landing Error Scoring System (LESS) Score test with dynamic taping intervention. The athletic trainer will intervene with spiral dynamic technique by using a dynamic tape for the first test and a sham dynamic tape for the second test, or reverse the order. The Landing Error Scoring System (LESS) with double-leg consists of 17 items; total score is 0-19 points. Higher scores mean a worse outcome. | 1st Year | 
| Observe the effect of dynamic taping in lower limb biomechanics after fatigue protocol. | The investigators would recruit senior high school athletes (n=50) to compare the changes of trunk and lower extremities joint angles with dynamic taping intervention. Subjects need to wear the wearable device (KinMAS system) and take double-leg and single-leg Landing Error Scoring System (LESS) Score tests with dynamic taping intervention after fatigue protocol. The athletic trainer will intervene with spiral dynamic technique by using a dynamic tape for the first test and a sham dynamic tape for the second test, or reverse the order. The Landing Error Scoring System (LESS) with double-leg consists of 17 items, total score is 0-19 points, whereas the single-leg consists of 14 items and total score is 0-16 points. Higher scores mean a worse outcome. | 2nd Year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Dynamic taping, Landing Error Scoring System (LESS), ACL injuries