Effect of Sand on Knee Load and Muscle Activity During a Single Leg Landing Task

April 26, 2022 updated by: Mark Richardson, Teesside University

Effect of Sand on Knee Load and sEMG Activity During a Single Leg Landing Task: Implications for ACL Prevention and Rehabilitation

This study evaluates the effect of different surfaces on the load experienced by the knee when landing from a single leg hop. A sand, pliable grass and firm (hard floor) surface will be compared when hopping from a 30 cm height. Each subject will complete 5 hops on each surface in a random order. The muscle activity in selected muscles of the lower limb will also be investigated to see how this differs in the landing leg, when landing on the different surfaces.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The aim of this study is twofold: 1) To investigate the effect of sand on landing kinematics and kinetics at the knee joint when performing a single leg jump landing task (dominant leg), comparing sand with a firm surface and pliable grass control. 2) To investigate the sEMG activity of the hamstring, quadriceps and gastrocnemius muscles of the dominant leg during the jump landing task on these different surfaces (from take off through to terminal knee flexion at the end of the landing phase).

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Middlesbrough, United Kingdom, TS1 3BA
        • Teesside University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 45 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Female
  • Participate in a minimum of 3 hours sporting activity per week.
  • Provided Informed Consent
  • Must be over 16 years of age (16-45 years)
  • No exclusion criteria

Exclusion Criteria:

  • Not willing to provide informed consent
  • Pregnant
  • History of ACL injury or other knee pathology
  • Significant lower limb pathology
  • Previous lower limb fracture or surgery
  • Lower Limb injury in last 3 months.
  • Male

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sand
Participants perform 5 single leg hops onto a Sand surface from a 30cm height
Other: Sand
sand surface
Active Comparator: Artificial grass
Participants perform 5 single leg hops onto a grass surface from a 30cm height
Other: artificial grass
grass surface
Active Comparator: Firm Ground
Participants perform 5 single leg hops onto a firm ground surface from a 30cm height
Other: firm ground
firm surface

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
knee abduction moment (N.m)
Time Frame: 1 testing session (1 day)
a combination of ground force and amount of knee valgus on landing
1 testing session (1 day)
knee valgus
Time Frame: 1 testing session (1 day)
angle at the knee on landing
1 testing session (1 day)
surface electromyography (sEMG) activity pre and post landing
Time Frame: 1 testing session (1 day)
muscle activity of quadriceps (vastus medialis, vastus lateralis), hamstrings (lateral and medial), gastroc (lateral head)
1 testing session (1 day)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Anterior tibial translation
Time Frame: 1 testing session(1 day)
The amount of forward translation of the tibia when landing on the surface
1 testing session(1 day)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Teesside University

Investigators

  • Principal Investigator: Mark Richardson, MSc, Teesside University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 3, 2020

Primary Completion (Actual)

December 10, 2021

Study Completion (Actual)

December 10, 2021

Study Registration Dates

First Submitted

July 30, 2020

First Submitted That Met QC Criteria

August 4, 2020

First Posted (Actual)

August 6, 2020

Study Record Updates

Last Update Posted (Actual)

April 27, 2022

Last Update Submitted That Met QC Criteria

April 26, 2022

Last Verified

April 1, 2022

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • TeessideUni

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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