Trial Outcomes & Findings for Effect of Dynamic Taping on Landing Biomechanics in Athletes With Symptoms of Patellar Tendinopathy (NCT NCT05454449)
NCT ID: NCT05454449
Last Updated: 2025-04-09
Results Overview
Measure the hip joint angle when the knee reaches the maximum flexion angle during the landing phase of the countermovement jump
COMPLETED
34 participants
In the experiment, the maximum knee flexion during the landing phase of the countermovement jump
2025-04-09
Participant Flow
Participants were recruited from Taipei and New Taipei City via social media between February 2023 and June 2023. The first participant was enrolled on February 13, 2023 and the last participant was enrolled in June 2023
Participant milestones
| Measure |
Symptomatic Group
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Overall Study
STARTED
|
17
|
17
|
|
Overall Study
COMPLETED
|
17
|
17
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Effect of Dynamic Taping on Landing Biomechanics in Athletes With Symptoms of Patellar Tendinopathy
Baseline characteristics by cohort
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
Total
n=34 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Categorical
<=18 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
17 Participants
n=5 Participants
|
17 Participants
n=7 Participants
|
34 Participants
n=5 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Sex: Female, Male
Female
|
15 Participants
n=5 Participants
|
15 Participants
n=7 Participants
|
30 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
2 Participants
n=5 Participants
|
2 Participants
n=7 Participants
|
4 Participants
n=5 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Asian
|
17 Participants
n=5 Participants
|
17 Participants
n=7 Participants
|
34 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Black or African American
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
White
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
More than one race
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Height
|
174.07 cm
STANDARD_DEVIATION 7.71 • n=5 Participants
|
174.03 cm
STANDARD_DEVIATION 8.40 • n=7 Participants
|
174.05 cm
STANDARD_DEVIATION 7.822 • n=5 Participants
|
|
Specializing in
volley ball
|
13 Participants
n=5 Participants
|
13 Participants
n=7 Participants
|
26 Participants
n=5 Participants
|
|
Specializing in
basketball
|
4 Participants
n=5 Participants
|
4 Participants
n=7 Participants
|
8 Participants
n=5 Participants
|
|
Dominal leg
right
|
16 Participants
n=5 Participants
|
16 Participants
n=7 Participants
|
32 Participants
n=5 Participants
|
|
Dominal leg
left
|
1 Participants
n=5 Participants
|
1 Participants
n=7 Participants
|
2 Participants
n=5 Participants
|
|
Body weight
|
68.59 kg
STANDARD_DEVIATION 8.89 • n=5 Participants
|
68.69 kg
STANDARD_DEVIATION 8.56 • n=7 Participants
|
68.64 kg
STANDARD_DEVIATION 8.46 • n=5 Participants
|
|
BMI
|
22.73 kg/m^2
STANDARD_DEVIATION 2.29 • n=5 Participants
|
22.64 kg/m^2
STANDARD_DEVIATION 1.55 • n=7 Participants
|
22.68 kg/m^2
STANDARD_DEVIATION 1.89 • n=5 Participants
|
|
Training time per week
|
442.94 min/wk
STANDARD_DEVIATION 228.85 • n=5 Participants
|
425.29 min/wk
STANDARD_DEVIATION 301.91 • n=7 Participants
|
434.71 min/wk
STANDARD_DEVIATION 259.48 • n=5 Participants
|
|
VISA-PCh
|
64.12 units on a scale
STANDARD_DEVIATION 10.16 • n=5 Participants
|
93.06 units on a scale
STANDARD_DEVIATION 5.98 • n=7 Participants
|
78.59 units on a scale
STANDARD_DEVIATION 16.68 • n=5 Participants
|
|
Jumping height
|
63.84 cm
STANDARD_DEVIATION 10.79 • n=5 Participants
|
64.46 cm
STANDARD_DEVIATION 9.94 • n=7 Participants
|
64.15 cm
STANDARD_DEVIATION 10.38 • n=5 Participants
|
|
Height of spike jump
|
72.29 cm
STANDARD_DEVIATION 12.19 • n=5 Participants
|
72.21 cm
STANDARD_DEVIATION 11.66 • n=7 Participants
|
72.25 cm
STANDARD_DEVIATION 11.93 • n=5 Participants
|
|
Ankle DF ROM in weight bearing
Right side
|
36.61 degrees
STANDARD_DEVIATION 6.82 • n=5 Participants
|
37.24 degrees
STANDARD_DEVIATION 4.80 • n=7 Participants
|
36.92 degrees
STANDARD_DEVIATION 5.73 • n=5 Participants
|
|
Ankle DF ROM in weight bearing
Left side
|
39.90 degrees
STANDARD_DEVIATION 4.64 • n=5 Participants
|
38.90 degrees
STANDARD_DEVIATION 4.28 • n=7 Participants
|
39.40 degrees
STANDARD_DEVIATION 4.36 • n=5 Participants
|
|
Hip extensor power
Right side
|
44.93 percentage of body weight
STANDARD_DEVIATION 10.73 • n=5 Participants
|
43.39 percentage of body weight
STANDARD_DEVIATION 11.08 • n=7 Participants
|
44.16 percentage of body weight
STANDARD_DEVIATION 10.61 • n=5 Participants
|
|
Hip extensor power
Left side
|
46.71 percentage of body weight
STANDARD_DEVIATION 11.64 • n=5 Participants
|
43.53 percentage of body weight
STANDARD_DEVIATION 9.64 • n=7 Participants
|
45.12 percentage of body weight
STANDARD_DEVIATION 10.49 • n=5 Participants
|
PRIMARY outcome
Timeframe: In the experiment, the maximum knee flexion during the landing phase of the countermovement jumpMeasure the hip joint angle when the knee reaches the maximum flexion angle during the landing phase of the countermovement jump
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Hip Flexion Angles
|
86.59 degrees
Standard Deviation 15.51
|
73.65 degrees
Standard Deviation 20.05
|
PRIMARY outcome
Timeframe: The landing phase of the countermovement jump in the experimentIn the countermovement jump test, the force received by the force plate changes from 0 to a positive value during the landing phase. Measure the maximal knee flexion angle during this phase.
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Maximal Knee Flexion Angle
|
97.87 degrees
Standard Deviation 15.17
|
83.70 degrees
Standard Deviation 14.21
|
PRIMARY outcome
Timeframe: In the experiment, the maximum knee flexion during the landing phase of the countermovement jumpMeasure the hip abduction angle when the knee reaches the maximum flexion angle during the landing phase of the countermovement jump
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Hip Abduction Angle
|
13.97 degrees
Standard Deviation 6.50
|
10.68 degrees
Standard Deviation 3.76
|
PRIMARY outcome
Timeframe: the contralateral foot is at its lowest point in step-down test in the experimentPerform the step-down test on a 15 cm high table to measure the knee flexion angle of the foot on the table when the side foot is at the lowest point.
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Knee Joint Flexion Angle
|
60.79 degrees
Standard Deviation 5.57
|
65.18 degrees
Standard Deviation 5.05
|
PRIMARY outcome
Timeframe: during the experiment, up to 4 hoursHaving 4 motor control tests: Hip Flexion Control: Maintain an upright posture in a single-leg small knee bend. The knee aligns with the 2nd toe in the sagittal plane and \>5 cm beyond the toes. Internal/External Rotation Control:Perform a single-leg small knee bend while rotating the pelvis and upper body toward the opposite/same side. Rotate 35°/30° without excessive L/E compensation. Hip Adduction Control:Maintain a single-leg stance with symmetrical shoulders and pelvis. Pelvic lateral displacement \<10 cm, left-right displacement difference \<2 cm. Scoring Criteria: Avoid uncontrolled movements, perform isolated movements correctly, achieve adequate ROM, maintain normal breathing, control movements in eccentric/concentric phases, execute smoothly, stay relaxed and aware, ensure fluid transitions, avoid compensations, complete without feedback/support, and show no fatigue. Total score range: 0-52, converted to a percentage for comparison(0-100%).
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Motor Control Ability
|
78 score on a scale
Standard Deviation 11
|
86 score on a scale
Standard Deviation 8
|
SECONDARY outcome
Timeframe: Immediately during the experimentBefore the task, the subjects were asked to prone on the bed with their hips at 0 degrees and tested knee at 45 degrees of flexion, and to do isometric contractions with the utmost strength. The muscle contraction signals were recorded by EMG, and the average value of five measurements was taken as maximal voluntary contraction (MVC) of biceps femoris. The countermovement jump test requires the participant to cross their arms over the chest, squat down, and then jump as high as possible before landing. The landing phase is identified when the ground reaction force recorded by the force plate transitions from zero to a positive value. Using a trigger, the force plate data is synchronized with EMG data to determine the peak activation of the biceps femoris muscle during the landing phase. The biceps femoris contraction signals collected during the task were divided by the maximum biceps femoris contraction signal, and the results were standardized for comparison between individuals.
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Maximum Muscle Activity of Biceps Femoris
|
16.03 percentage of MVC
Standard Deviation 7.50
|
21.44 percentage of MVC
Standard Deviation 6.02
|
SECONDARY outcome
Timeframe: Immediately during the experimentBefore the task, the subjects were asked to prone on the bed with their hips at 0 degrees and tested knee at 45 degrees of flexion, and to do isometric contractions with the utmost strength. The muscle contraction signals were recorded by EMG, and the average value of five measurements was taken as maximal voluntary contraction (MVC) of biceps femoris. The countermovement jump test requires the participant to cross their arms over the chest, squat down, and then jump as high as possible before landing. The landing phase is identified when the GRF recorded by the force plate transitions from zero to a positive value. Using a trigger, the force plate data and kinematics data is synchronized with EMG data to determine the activation of the biceps femoris muscle during maximal knee flexion in the landing phase. The signals collected during the task were divided by the maximum biceps femoris contraction signal, and the results were standardized for comparison between individuals.
Outcome measures
| Measure |
Symptomatic Group
n=17 Participants
Individuals with patellar tendon pain last for 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score ≦80
|
Asymptomatic Group
n=17 Participants
Individuals without any lower extremity pain(NRS\>3/10) in past 3 months Individuals age between 18-40 years old Individuals had trained in volleyball or basketball for more than two years Individuals still played volleyball or basketball for at least 90 minutes a week Victorian Institute of Sport Assessment (VISA) Questionnaire score \>80
|
|---|---|---|
|
Muscle Activity of Biceps Femoris
|
4.93 percentage of MVC
Standard Deviation 1.89
|
7.40 percentage of MVC
Standard Deviation 2.91
|
Adverse Events
Symptomatic Group
Asymptomatic Group
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Yi-Fen Shih, Ph.D Department of Physical Therapy and Assistive Technology
National Yang-Ming Chiao-Tung University
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place