The Effect of Upper Limbs Motion During Single-leg Jump Landing After Anterior Cruciate Ligament Reconstruction

The Effect of Upper Limbs Motion on Lower Limb Biomechanics and Muscle Activity During Single-leg Jump Landing After Anterior Cruciate Ligament Reconstruction

The aim of this study is to investigate the effect of upper limbs motion on lower limb biomechanics and muscle activity during single-leg jump landing after anterior cruciate ligament reconstruction.

Study Overview

• Status: Completed
• Conditions: Anterior Cruciate Ligament Reconstruction

Detailed Description

More and more people join in different sports in recent years. But the incidence of sports injury also increases. And the most frequently occurring and debilitating knee injury in sports is rupture of the anterior cruciate ligament (ACL). Patients who aim to return to their preinjury sports should undergo anterior cruciate ligament reconstruction (ACLR) in order to maximize knee stability. The overall incidence rate of a second ACL injury within 24 months after ACLR was nearly 6 times greater than that in healthy participants. Although many studies have showed about biomechanical and neuromuscular risk factors during jump landing which were thought to associate with the secondary injury after ACLR, these studies all focused on the motion of lower extremity. But actually, people often use their upper limbs to catch or throw a ball during jump landing in playground. Whether the upper limbs motion will affect the muscle coordination of lower extremity during jump landing is still unknown. Therefore, the purpose of our study is to investigate the effect of upper limbs motion during single-leg jump landing after ACLR.

• Study Type: Observational
• Enrollment (Actual): 15

Contacts and Locations

Study Locations

• Taiwan
  • Taipei, Taiwan, 112
    • National Yang-Ming University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 50 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Age between 20-50 years old

Description

Inclusion Criteria:

• Only one leg has operation of ACL reconstruction
• At least 1 year after ACLR or have been back to sports
• Exercise in sports regularly.

Exclusion Criteria:

• Other operation of lower extremity exclude ACLR
• Any diseases or poor condition that will affect jumping or deterioration after jumping.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Kinematics of lower-limb during landing phase	The data will be collected by VICON motion capture system, include hip, knee and ankle joint angle in three plane. (frontal plane, sagittal plane and transverse plane)	from taking off to landing, about 5 seconds.
Kinetics of knee joint during landing phase	The data will be collected by VICON motion capture system and calculated by inverse dynamics, include knee flexion/extension moment, abduction/adduction moment, internal/external rotation moment.	from taking off to landing, about 5 seconds.
Muscle onset time of lower-limb muscles during landing phase	The data will be collected by wireless electromyography, include rectus femoris, vastus medialis, vastus lateralis, biceps femoris, semitendinosus.	from taking off to landing, about 5 seconds.
Muscle activation of lower-limb muscles during landing phase	The data will be collected by wireless electromyography, include rectus femoris, vastus medialis, vastus lateralis, biceps femoris, semitendinosus, anterior tibialis, medial gastrocnemius	from taking off to landing, about 5 seconds.
Muscle activation-Hamstring and Quadriceps ratio (H/Q ratio) during landing phase	The data will use the amount of hamstring and quadriceps muscle activation to calculate H/Q ratio.	from taking off to landing, about 5 seconds.

Collaborators and Investigators

• Sponsor: National Yang Ming University

Study record dates

Study Major Dates

• Study Start (Actual): July 26, 2019
• Primary Completion (Actual): December 6, 2019
• Study Completion (Actual): December 6, 2019

Study Registration Dates

• First Submitted: August 15, 2019
• First Submitted That Met QC Criteria: November 12, 2020
• First Posted (Actual): November 16, 2020

Study Record Updates

• Last Update Posted (Actual): November 16, 2020
• Last Update Submitted That Met QC Criteria: November 12, 2020
• Last Verified: May 1, 2019

More Information

Terms related to this study

• Other Study ID Numbers: YM108023E

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No