ower Extremity Muscle Activation Between Single-leg Drop Landing vs. Jump Landing during the Weight-Acceptance Phase: A Randomized Controlled Trial

Phase 1

Completed

• Conditions: Healthy female adults occasionally involved in any kind of sport and/or physical activity without joint deformity, recurrent or recent injuries of the lower extremities, and history of neurological disease, vestibular, or visual disturbance; Muscle activation, lower limb, single-leg landing, ground reaction force, risk of injury, landing test selection

• Registration Number: TCTR20220129003
• Lead Sponsor: College of Sports Science and Technology MAHIDOL UNIVERSITY

Brief Summary

The main findings from this study showed that a higher quadriceps EMG activity occurred in SLJL compared with SLDL during the first 10% of the landing phase. A significantly higher EMG activity was also observed in RF and VL during SLDL during 20-30% of the landing phase. SLJL exhibited higher peak vGRFs and shorter time to peak vGRF.

Detailed Description

Not available

Study Timeline

• Study Completion: 2020-11-27
• Study Start: 2022-01-29
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Female
• Target Recruitment: 13

Inclusion Criteria

1. occasionally involved in any kind of sport and/or physical activity, 2. Q-angle within 10-20 degrees, 3. leg length discrepancy not exceeding 2 cm, 4. BMI within 18.5-25 kg/m2

Exclusion Criteria

1. knee joint deformity, 2. feet supination or over pronation, 3. pelvic side shift, 4. recurrent or recent injuries of the lower extremities, including patella dislocation, ACL injury, or ankle sprain, 5. musculoskeletal problems on either leg within the past three months prior to participation, 6. history of neurological disease, vestibular, or visual disturbance

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
muscle activity During testing intervention EMG signal recordings which were processed with BTS Analyzer Software

Secondary Outcome Measures

Name	Time	Method
peak vertical ground reaction force, time to peak ground reaction force During testing intervention Force platform recordings which were processed in BTS Analyzer software and MATLAB 2020b