Effect of Action Observation and Motor Imagery on Arthrogenic Muscle Inhibition of the Quadriceps in Patients With End-stage Knee Gonarthrosis.

NCT ID: NCT06000345

Last Updated: 2023-08-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-01

Study Completion Date

2023-09-30

Brief Summary

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The study aims at evaluating the effects of one session of Action Observation Training (AOT) and Motor Imagery (MI) on arthrogenic muscle inhibition (AMI) of the quadriceps (QF) in subjects with end-stage gonarthrosis.

30 patients with end-stage knee osteoarthritis were enrolled. Patients were randomized in two groups (experimental group and control group).

Experimental group performed one 6-minutes AOT and MI session with motor content of concentric and isometric QF contractions, whereas control group underwent a 6-minute sham AOT and MI session. Every patient was evaluated to assess the percentage of AMI on the QF before (T0) and after (T1) the treatment following the gold standard Twitch Interpolated Technique.

Detailed Description

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The study aims at evaluating the effects of one session of Action Observation Training (AOT) and Motor Imagery (MI) on arthrogenic muscle inhibition (AMI) of the quadriceps (QF) in subjects with end-stage gonarthrosis.

30 patients with end-stage knee osteoarthritis were enrolled. Patients were randomized in two groups (experimental group and control group).

Experimental group performed one AOT and MI session with motor content of concentric and isometric QF contractions, whereas control group underwent a 6-minute sham AOT and MI session. Every patient was evaluated to assess the percentage of AMI on the QF before (T0) and after (T1) the assigned treatment following the gold standard Twitch Interpolated Technique. Both groups sat on an isometric dynamometric chair (COR1, OT-Bioelettronica, Torino) with a load cell (FORZA, OT-Bioelettronica, Torino) designed to detect and map the strenght generated by the QF muscle. Upper body movements were limited by crossover shoulder harnesses, a belt across the abdomen and the subjects were asked to keep their arms crossed holding onto the harness while performing the evaluation.

Three large electrodes (10x13cm) were positioned over the quadriceps muscle belly. Two sEMG electrodes (FREEEMG, BTS, Italy) were positioned on the Vastus Medialis and Vastus Lateralis using the SENIAM protocol.

Right after the first evaluation (T0), both groups performed an AOT session. The experimental group was shown a video (4 minutes) in which a subject (matched for age, sex, and limb affected) performed, in third person view, quadriceps concentric contractions for 2 minutes and isometric contractions for 2 minutes. The video contained visual elements indicating the maximality of the effort. After both concentric movement video and isometric movement video the subjects performed a MI session (2 sessions, 1 minute in length each), in which they were asked to imagine in first person the action just seen in the video.

On the other hand, the control group was shown a video of landscapes (4 minutes in length). Halfway through and at the end of the video they were asked to imagine what they had just seen for 1 minute. After the session of AOT and MI (T1) both groups were re-evaluated in the same way as previously described.

Conditions

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Knee Osteoarthritis Arthrogenic Muscle Inhibitions

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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AOT + MI group

The AOT + MI group was shown a video (4 minutes) in which a subject (matched for age, sex, and limb affected) performed, in third person view, quadriceps concentric contractions for 2 minutes and isometric contractions for 2 minutes. The video contained visual elements indicating the maximality of the effort. After both concentric and isometric movement video the subjects performed a MI session (1 minute in length each), in which they were asked to imagine in first person the action previously observed in the video.

Group Type EXPERIMENTAL

AOT + MI

Intervention Type OTHER

During the AOT session, the patients were shown a video containing motor contents. In particular, the video demonstrated quadriceps concentric and isometric contractions, presented in the third person perspective. At the conclusion of each video, the patients were asked to spend 1 minute imagining what they had just seen.

Control group

The control group was shown a video of landscapes (4 minutes in length). Halfway through and at the end of the video they were asked to imagine what they had just seen for 1 minute.

Group Type SHAM_COMPARATOR

Control AOT + MI

Intervention Type OTHER

The control group was shown a video of landscapes (4 minutes in length). Halfway through and at the end of the video they were asked to imagine what they had just seen for 1 minute.

Interventions

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AOT + MI

During the AOT session, the patients were shown a video containing motor contents. In particular, the video demonstrated quadriceps concentric and isometric contractions, presented in the third person perspective. At the conclusion of each video, the patients were asked to spend 1 minute imagining what they had just seen.

Intervention Type OTHER

Control AOT + MI

The control group was shown a video of landscapes (4 minutes in length). Halfway through and at the end of the video they were asked to imagine what they had just seen for 1 minute.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* patients with end-stage knee ostheoarthritis undergoing primary total knee arthroplasty
* Active knee flexion \> 45°

Exclusion Criteria

* Previous lower limb orthopedic surgery
* Concomitant neurological, orthopedic, cardiovascular disorders
* Cognitive impairments or psychiatric disorders
Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Istituto Clinico Humanitas

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Istituto Clinico Humanitas

Rozzano, , Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Roberto Gatti

Role: CONTACT

0282245610

Facility Contacts

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roberto gatti

Role: primary

0282245610

Other Identifiers

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CLF22/07

Identifier Type: -

Identifier Source: org_study_id

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