Seated Reach Distance and Trunk Excursion Accurately Reflect Dynamic Postural Control in Individuals with Motor-incomplete Spinal Cord Injury

Spinal Cord, 2010 · DOI: 10.1038/sc.2010.11 · Published: October 1, 2010

Simple Explanation

This study investigates how well the Seated Reach Test (SRT) measures postural control in individuals with motor-incomplete spinal cord injury (MISCI). It compares SRT and trunk movements with center of pressure excursion (COPE), a measure of balance. The study found that SRT and trunk movements are related to COPE, suggesting they can be used to assess postural control. Trunk movement measures might be better for those who struggle to maintain arm position during reaching. The research also showed that SRT is a reliable measure in individuals with MISCI, meaning it provides consistent results over time.

Study Duration

Not specified

Participants

MISCI: 10, ND: 10 for validity; MISCI: 32 for reliability

Evidence Level

Not specified

Key Findings

1
The SRT was correlated with COPE in three directions (forward, right, and backward) of reaching, except for leftward reaching in MISCI subjects.
2
Trunk excursion was correlated with COPE in all directions for both MISCI and non-disabled individuals.
3
In individuals with MISCI, there was significant intersession agreement for both reach distance and trunk excursion, indicating high reliability.

Research Summary

The study aimed to determine whether the SRT is a valid and reliable measure of seated postural control in individuals with MISCI, comparing it with COPE and trunk excursion. Results showed that both SRT and trunk excursion are reasonable reflections of COPE, but trunk excursion measurement may be more accurate, especially for individuals with difficulty maintaining arm position. The SRT was found to be a reliable measure in individuals with MISCI across all reaching directions.

Practical Implications

Clinical Assessment

SRT can be used as a clinical measure of postural control in individuals with MISCI.

Intervention Planning

Focusing on trunk stability during reaching tasks can improve postural control.

Rehabilitation Strategies

Trunk excursion measurements may provide a more accurate assessment of LOS compared to SRT alone, particularly for those with upper extremity motor control issues.

Study Limitations

1
COPE measures may be affected by pressure distribution to the feet during forward reaching.
2
Testing was completed with feet on the floor, which might influence COPE measurements.
3
Leftward reaching in MISCI individuals showed a lower correlation between SRT and COPE.

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