EMG Analysis in ABI: Motor Imagery and Action


University of Salamanca




Quality of Life
Mirror Movement


Other: Control condition- placebo
Other: Action Observation (AO)
Other: Motor Imagery (MI)

Study type


Funder types




Details and patient eligibility


This study focuses on electromyographic analysis of upper limb muscle activation in stroke survivors during Motor Imagery (MI) and Action Observation (AO) rehabilitation techniques. By measuring muscle activity in the wrist and finger flexors and extensors, the research seeks to understand the impact of MI and AO on motor function recovery post-stroke. Conducted at the University of Salamanca, the study involves stroke survivors participating in a series of three experimental sessions. The analysis will correlate electromyographic responses with functional independence, limb functionality, and cognitive factors. The research aims to contribute to the fields of occupational therapy and physiotherapy, offering insights into effective rehabilitation methods for improving quality of life in stroke survivors.

Full description

This study investigates muscle activation in the upper limbs of stroke survivors using electromyographic analysis during Motor Imagery (MI) and Action Observation (AO). Stroke, a major cause of disability, often results in motor impairments in the upper limb, impacting daily activities. The research focuses on innovative rehabilitation techniques based on neuroplasticity, such as MI and AO, stimulated by the discovery of mirror neurons. The primary goal is to record upper limb muscle activation during MI and AO, using surface electromyography to measure activation in wrist and finger flexors and extensors. The study will also explore the relationship between electromyographic responses and factors like daily activity independence, limb functionality, quality of life, mental evocation ability, and cognitive impairment. Conducted at the University of Salamanca, the study will recruit stroke survivors for a three-session experimental protocol involving control, MI, and AO conditions. Data will be analyzed with SPSS Statistics, ensuring anonymity and ethical compliance. The research aims to enhance understanding of effective neurorehabilitation techniques, contributing to the fields of occupational therapy and physiotherapy.


28 estimated patients




18 to 99 years old


No Healthy Volunteers

Inclusion criteria

  • Being over 18 years of age
  • Diagnoses of established stroke
  • Present limitations or motor response deficiencies in the upper limb
  • Maintain cognitive functions with the ability to follow the instructions of the interventions and evaluations (MOCA>14)

Exclusion criteria

  • Diagnosed with mental illness before the stroke
  • Other systemic conditions on the central nervous system
  • Cardiorespiratory system pathologies in severe cases
  • Acute period, fever, muscle inflammation or myopathies
  • Any type of vascular and organic insufficiency
  • Liver disease or skin lesions in the area of application of the electrodes.

Trial design

Primary purpose




Interventional model

Single Group Assignment


None (Open label)

28 participants in 1 patient group

Intervention group
Experimental group
The intervention group will receive 3 experimental procedures Placebo control Motor Imagery- Active Comparator Action Observation (OA) Active comparator muscle activation control by surface electromyography will be recorded in these three situations
Other: Motor Imagery (MI)
Other: Control condition- placebo
Other: Action Observation (AO)

Trial contacts and locations



Central trial contact

Ana MAría Martín Nogueras, Dr; Beatriz María Bermejo Gil, Dr

Data sourced from clinicaltrials.gov

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