Poster or Presentation Title

Activation pattern of skeletal muscles for specific hand skills: EMG analysis of ataxic cerebral palsy

Presenter Information

Shauna BraggFollow

Location

Hall Memorial Ballroom

Access Type

Open Access

Presentation Type

Poster Presentation

Start Date

4-4-2018 12:00 PM

Department

Biology

Abstract

Cerebral palsy (CP) affects an individual’s motor functions including motor control over body movement, motor coordination, muscle tone, motor reflexes, body posture, and balance. Ataxic CP (ACP) is defined as the inability to control voluntary bodily movements and occurs in 5-10% of all CP patients. ACP may affect both the upper and lower limbs. When present in the upper limbs, ataxia can cause tremors and an overall shakiness in the arms and hands. In the lower limbs, patients with ACP often walk with their feet placed wider than their hips and experience frequent falls. The objectives of this study were to evaluate how ataxia occurs and how it possibly interferes with the coordination of certain muscle groups. We assigned four basic motor tasks to unaffected and affected individuals with ACP and examined muscle activities of their supinator and pronator teres using electromyography. These tasks were selected because the affected individual may experience some level of difficulty to execute. We discuss the implication of our experimental results. We hope to contribute to finding what specific muscles or muscle groups physical and occupational therapies can target to improve motor stabilization and coordination of these muscles and to help improve the overall well-being of those with ACP.

Key Words: Cerebral palsy, ataxia, muscle coordination/stabilization, interference, supinator and pronator teres

Faculty Mentor

Dr. Maie

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Apr 4th, 12:00 PM

Activation pattern of skeletal muscles for specific hand skills: EMG analysis of ataxic cerebral palsy

Hall Memorial Ballroom

Cerebral palsy (CP) affects an individual’s motor functions including motor control over body movement, motor coordination, muscle tone, motor reflexes, body posture, and balance. Ataxic CP (ACP) is defined as the inability to control voluntary bodily movements and occurs in 5-10% of all CP patients. ACP may affect both the upper and lower limbs. When present in the upper limbs, ataxia can cause tremors and an overall shakiness in the arms and hands. In the lower limbs, patients with ACP often walk with their feet placed wider than their hips and experience frequent falls. The objectives of this study were to evaluate how ataxia occurs and how it possibly interferes with the coordination of certain muscle groups. We assigned four basic motor tasks to unaffected and affected individuals with ACP and examined muscle activities of their supinator and pronator teres using electromyography. These tasks were selected because the affected individual may experience some level of difficulty to execute. We discuss the implication of our experimental results. We hope to contribute to finding what specific muscles or muscle groups physical and occupational therapies can target to improve motor stabilization and coordination of these muscles and to help improve the overall well-being of those with ACP.

Key Words: Cerebral palsy, ataxia, muscle coordination/stabilization, interference, supinator and pronator teres