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  4. Reduced Muscle Activity of the Upper Extremity in Individuals with Spinal Cord Injuries

Reduced Muscle Activity of the Upper Extremity in Individuals with Spinal Cord Injuries

Int. J. Environ. Res. Public Health, 2022 · DOI: https://doi.org/10.3390/ijerph19084708 · Published: April 13, 2022

Spinal Cord InjuryPhysiologyRehabilitation

Simple Explanation

This study evaluates the muscle strength of 15 upper extremity muscles among patients with spinal cord injury (SCI) and compares the relative weakness of individual muscles to a control group. The goal is to understand how SCI affects upper body muscle strength to improve rehabilitation strategies. The study found that most upper extremity muscles were weaker in SCI patients compared to the control group. Also, the ranking of muscle strength differed between the two groups, suggesting that SCI affects different muscles in different ways. This information can help in designing targeted rehabilitation programs for SCI patients. By knowing which muscles are weaker, therapists can focus on strengthening those specific muscles, preventing overuse injuries from excessive training.

Study Duration
Not specified
Participants
7 male patients with SCI and 33 males in the control group
Evidence Level
Not specified

Key Findings

  • 1
    The majority of the upper extremity muscles (12 out of 15) showed considerable weakness (24 to 53%) relative to the control group.
  • 2
    The relative strength (ranking) of individual muscles among 15 upper extremity muscles was different between patients with SCI and the control group.
  • 3
    Latissimus Dorsi (LD) showed the greatest difference (up to 54%) between the SCI and control groups.

Research Summary

The study evaluated muscle strength in the upper extremities of SCI patients compared to a control group, finding significant weakness in most muscles. Muscle strength rankings differed between SCI and control groups, indicating selective muscle weakness due to SCI. The findings suggest targeted rehabilitation programs focusing on specific muscle groups could improve outcomes and prevent injuries.

Practical Implications

Targeted Rehabilitation

Rehabilitation programs can be tailored to focus on strengthening specific weakened muscles, leading to more effective recovery.

Injury Prevention

Understanding muscle weakness patterns can help prevent overuse injuries during rehabilitation and daily activities.

Improved Functional Ability

Selective strengthening can improve the functional ability of the upper extremities, enhancing independence in daily tasks.

Study Limitations

  • 1
    Focused only on patients with ASIA impairment scale D and E levels.
  • 2
    Small sample size of SCI patients.
  • 3
    Only male participants were recruited.

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