Single Leg Squat Performance in Physically and Non-physically Active Individuals

Completed

• Conditions: Single Leg Squat Performance; Athletic Injuries
• Interventions: Other: performance of the single leg squat task

• Registration Number: NCT03203083
• Lead Sponsor: I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio

Brief Summary

Single-leg squat (SLS) is a functional test visually rated by clinicians for assessing lower limb function as a preventive injury strategy. SLS clinical rating is a qualitative evaluation and it does not count objective outcomes as kinematics data and surface electromyography (sEMG) assessment. Based on the SLS rating, the aims of this study were (i) to determine the clinical rating agreement among six raters and (ii) to assess kinematic and sEMG predictors of good SLS performance in physically and non-physically active individuals.

Detailed Description

Not available

Study Timeline

• Study Start: 2014-03-19
• Primary Completion: 2014-07-03
• Study Completion: 2016-07
• Status Verified: 2017-06
• Study First Submitted: 2017-06-21
• Study First Submitted QC: 2017-06-28
• Last Update Submitted: 2017-06-28
• Study First Posted: 2017-06-29
• Last Update Posted: 2017-06-29

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 72

Inclusion Criteria

• body mass index (BMI) between 18.5-25.5,
• age between 18-35 years old,
• written informed consent to participate,

Exclusion Criteria

• musculoskeletal pain or history of lower extremity injuries lasting more than three months

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
physically active individuals	performance of the single leg squat task	subjects who perform sports activities more than 6 hours per week
non-physically active individuals	performance of the single leg squat task	subjects who perform less than 2 hours per week of sport activities

Primary Outcome Measures

Name	Time	Method
reliability of the clinical assessment	1 month after the first evaluation	intra- and inter-rater reliability for six clinicians when performing the SLS clinical rating

Secondary Outcome Measures

Name	Time	Method
kinematic predictors	Baseline	The following kinematic variables were considered during the single-leg squat: ipsilateral hip flexion in the lateral plane, hip internal rotation, hip adduction, pelvic obliquity, knee flexion (lateral plane) and medio-lateral displacement (frontal plane).
sEMG predictors	Baseline	The surface Electromyography (sEMG) activity of the following muscles were assessed: tensor fasciae latae, rectus femoris, adductor longus, gluteus maximus and transversus abdominis.