Effects of Motor Imagery and Action Observation on Electromyographic Activity and Intramuscular Oxygenation in the Hand Gripping Gesture

NCT03324217 | Completed

• 1 other identifier: uamadrid 3
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

Motor imagery is defined as a dynamic mental process of an action, without its real motor execution. Action observation training consists of watching an action performed by someone else. The primary objective of this study was to evaluate the effects of motor imagery and action observation combined with a hand grip strength program on strength gains in asymptomatic participants. The secondary objective was to assess the influence of motor imagery and action observation training combined with a hand grip strength program on electromyographic activity and intramuscular oxygenation of the forearm muscles.

Conditions

Asymptomatic Subjects; Painfree Voluntiers; Neuroscience

Keywords

motor imagery; action observation

Outcome Measures

Primary Outcomes (1)

• The hand grip strength

  The hand grip strength in kilograms was assessed using a Jamar dynamometer with the standard protocols for hand grip training. The measurements with the Jamar dynamometer present excellent test-retest reliability (intraclass correlation coefficient \[ICC\] = 0.81-0.99) for preferred and nonpreferred hands in men and excellent test-retest reliability (ICC = 0.83-1.0) for preferred and nonpreferred hands in women. The Jamar Dynamometer presents excellent intra-rater reliability (ICC = 0.94 and 0.98) and excellent inter-rater reliability (ICC = 0.98 for right and left handgrip strength).

  Change in hand grip strength after 72 hours post-intervention

Secondary Outcomes (2)

• Intramuscular oxygenation

  Change in Intramuscular oxygenation after 72 hours post-intervention

• Electromyographic activity

  Change in Electromyographic activity after 72 hours post-intervention

Study Arms (3)

Motor Imagery Group

EXPERIMENTAL

The participants in the motor imagery group were given instructions to perform a daily training composed of two sets of activities. The main set consisted of 10 isometric hand grip contractions for 3 seconds each with a tennis ball, leaving a 20-second break between contractions. In the first set, the participant only had to imagine that he was performing that task, placed in the standard position with the tennis ball in the hand. Once the first set was completed, the participant had to take a 2-minute break before starting the second set, in which they had to complete the set both imagining and actively performing the isometric contractions with the tennis ball.

Other: Mental Practise

Action Observation Group

EXPERIMENTAL

The participants in the action observation group were given instructions to perform a daily training comprised of two sets of activities. The main set consisted of 10 isometric hand grip contractions for 3 seconds each with a tennis ball, leaving a 20-second break between contractions. In the first set, the participant simply watched a video that showed a forearm performing the task, placed in the standard position and with the tennis ball in the hand. Once that first set was completed, the participant took a 2-minute break before starting the second set, in which they performed the 10 isometric contractions with the tennis ball while they watched the video.

Other: Mental Practise

Control Group

ACTIVE COMPARATOR

The participants in the control group were given instructions to perform a daily training of a single set. The set consisted of 10 isometric hand grip contractions for 3 seconds each with a tennis ball, leaving a 20-second break between contractions.

Other: Mental Practise

Interventions

Mental Practise OTHER

They made a mental task to produce a neurophysiological activation of the brain areas related to the planning and execution of voluntary movement in a manner that resembles how the action is performed in reality in combination with real exercises.

Also known as: Mental Task

Action Observation Group; Control Group; Motor Imagery Group

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• asymptomatic participants;
• men and women aged 18 to 65 years.

You may not qualify if:

• participants who had any knowledge of physical therapy;
• underage participants;
• participants with pain at the time of the study;
• participants with any type of neurological disease.

Sponsors & Collaborators

• Universidad Autonoma de Madrid: lead

Study Sites (1)

CSEU La Salle

Madrid, 28023, Spain

Location

Study Officials

• Roy A La Touche, PT, PhD

  Departamento de Fisioterapia. Centro Superior de Estudios Universitarios de La Salle. Universidad Autónoma de Madrid. Madrid. Spain

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: October 20, 2017
• First Posted: October 27, 2017
• Study Start: June 1, 2017
• Primary Completion: September 11, 2017
• Study Completion: October 13, 2017
• Last Updated: October 30, 2017

Record last verified: 2017-10

Data Sharing

• IPD Sharing: Will not share

Locations

ES (1)