Acute Tendon and Nerve Responses to Exercise

NCT ID: NCT01197599

Last Updated: 2014-07-22

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 50 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2008-12-31
• Study Completion Date: 2012-02-29

Brief Summary

The purpose of this study is to use ultrasound to analyze the effects of a bout of circuit training on the upper extremity of persons with spinal cord injury and able-bodied controls.

Detailed Description

Background: Manual wheelchair propulsion is a primary source of mobility for many individuals with spinal cord injury (SCI). Propelling a manual wheelchair over an extended period often leads to arm pain and, subsequently, to secondary disability. Over 50% of manual wheelchair users with SCI experience arm pain that limits their activities of daily living. The prevalence of shoulder pain and carpal tunnel syndrome among manual wheelchair users is between 31% and 73%, and 49% and 73% respectively. A circuit training protocol has been developed to strengthen and protect the muscles of people with SCI, and has been shown to improve muscle strength and endurance, and reduce HDLcholesterol levels.

Purpose: The purpose of this study is to use ultrasound to analyze the effects of a bout of circuit training on the upper extremity of persons with SCI and able-bodied controls.

Hypotheses: All subjects will show an increase in nerve cross-sectional area after participation in the circuit training protocol. Nerves and tendons will become less echogenic after participation in the circuit training protocol. These changes will be more pronounced in persons with SCI.

Methods: Data collected will include history of pain, a physical exam, and ultrasound images of the nondominant upper extremity before and after a bout of circuit training, which includes exercises lifting weights and using an arm cycle. Before circuit training, ultrasound images will be collected once. After the circuit training, ultrasound images will be collected every 10 minutes over an hour. These images and will be used to measure the health and properties (such as size) of nerves, muscles, and tendons in the arm. Changes in these properties after a bout of circuit training will be related to history and physical exam information.

Conditions

Spinal Cord Injury

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

Spinal Cord Injury

No interventions assigned to this group

Able-Bodied Control

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

Spinal Cord Injury Cohort:

• any cause or severity of spinal cord injury
• at least 1 year post-injury

Able-Bodied Control Cohort:

• self-reported good health

Exclusion Criteria

• history of non-dominant traumatic upper extremity injury to both wrist and shoulder
• history of cardiopulmonary or other disease for which intense activity carries any risk of harm
• a progressive or degenerative disability

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University of Miami

OTHER

Sponsor Role: lead

Responsible Party

Mark S. Nash, Ph.D., FACSM

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Mark S Nash, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Miami, The Miami Project to Cure Paralysis

Locations

The Miami Project to Cure Paralysis

Miami, Florida, United States

Countries

United States

Other Identifiers

TMP-MN-003

Identifier Type: -

Identifier Source: org_study_id