Association Between Knee Isokinetic Testing and Lower Limb Functional Performance and Limb Symmetry (Pro-knee)

This study aimed to evaluate the association between the isokinetic knee strength and/or proprioception performance with the functional performance on the functional Hop-tests and Y-balance test.

This study included 20 healthy individuals who performed an isokinetic assessment of knee proprioception (joint position sense, JPS and threshold to detection of passive motion, TDPM) and flexors/extensors strength. At the same time, they performed a functional testing consisting of three Hop-tests (single, triple and cross-over) and the Lower Quarter Y-Balance Test (YBT-LQ). We tested the correlation between the isokinetic and functional performances, and limb symmetry indexes.

Study Overview

• Status: Completed
• Conditions: Proprioceptive Disorders
• Intervention / Treatment: Device: All group

• Study Type: Observational
• Enrollment (Actual): 20

Contacts and Locations

Study Locations

• France
  • Caen, France, 14000
    • CHU Caen Normandie

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: N/A

• Sampling Method: Non-Probability Sample

Study Population

Young healthy adults who volunteered to participate in this study

Description

Inclusion Criteria:

• individuals under 45 years of age who performed at least 4 hours of physical activity per week.

Exclusion Criteria:

• individuals unable to perform isokinetic muscle tests
• individuals with a current or recent lower limb injury with time loss from sport participation within the previous month
• individuals with previous severe knee injury (eg. Severe ligament tear, knee fracture)
• individuals taking medications with potential balance/coordination side effects.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Strength	Measurement of knee extensors and flexors peak strength (in newton.meter, Nm) on isokinetic dynamometer.	one evaluation at a single point in time through study completion, an average of 4 months
Knee proprioception, JPS1	Measurement of knee proprioception by the passive repositioning technique (JPS, in degrees) on isokinetic dynamometer.	one evaluation at a single point in time through study completion, an average of 4 months
Knee proprioception, JPS2	Measurement of knee proprioception by the active repositioning technique (JPS, in degrees) on isokinetic dynamometer.	one evaluation at a single point in time through study completion, an average of 4 months
Knee proprioception, TDPM	Measurement of knee proprioception by the Threshold to Detection of Passive Motion (TDPM in degrees) on isokinetic dynamometer.	one evaluation at a single point in time through study completion, an average of 4 months
Functional testing, Hop tests	Hop test. Single hop: Patients are instructed to stand on one leg and perform 1 jump as far as possible, landing on the same leg. The total distance is recorded (in cm) .Triple hop: Patients are instructed to stand on one leg and perform 3 hops as far as possible, landing on the same leg. The total distance for 3 consecutive hops is recorded (in cm). Cross-over hop test : The patient hops forward 3 times while alternately crossing over a marking The patient is instructed to position themselves such that the first of the 3 hops was lateral with respect to the direction of crossover The total distance hopped forward is recorded (in cm)	one evaluation at a single point in time through study completion, an average of 4 months

Collaborators and Investigators

• Sponsor: University Hospital, Caen

Study record dates

Study Major Dates

• Study Start (Actual): December 5, 2019
• Primary Completion (Actual): March 15, 2020
• Study Completion (Actual): September 26, 2020

Study Registration Dates

• First Submitted: May 9, 2021
• First Submitted That Met QC Criteria: May 9, 2021
• First Posted (Actual): May 13, 2021

Study Record Updates

• Last Update Posted (Actual): May 13, 2021
• Last Update Submitted That Met QC Criteria: May 9, 2021
• Last Verified: May 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nervous System Diseases; Neurologic Manifestations; Sensation Disorders; Somatosensory Disorders
• Other Study ID Numbers: Pro-knee

Drug and device information, study documents

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