Spinal Cord Research Help
AboutCategoriesLatest ResearchContact
Subscribe
Spinal Cord Research Help

Making Spinal Cord Injury (SCI) Research Accessible to Everyone. Simplified summaries of the latest research, designed for patients, caregivers and anybody who's interested.

Quick Links

  • Home
  • About
  • Categories
  • Latest Research
  • Disclaimer

Contact

  • Contact Us
© 2025 Spinal Cord Research Help

All rights reserved.

  1. Home
  2. Research
  3. Spinal Cord Injury
  4. Measuring Physical Activity in Spinal Cord Injury Using Wrist-Worn Accelerometers

Measuring Physical Activity in Spinal Cord Injury Using Wrist-Worn Accelerometers

The American Journal of Occupational Therapy, 2019 · DOI: https://doi.org/10.5014/ajot.2019.027748 · Published: January 1, 2019

Spinal Cord InjuryRehabilitationBiomechanics

Simple Explanation

People with spinal cord injuries (SCI) often have limited physical activity, and it's important to understand their activity levels to help them incorporate more movement into their daily lives. Accelerometers are devices that can measure physical activity, but it's important to know how well they work for people with SCI. This study looked at two wrist-worn accelerometers, Actiwatch Score and PRO-Diary, to see how well they measured physical activity in people with and without SCI. Participants wore both monitors while doing different tasks in a lab, like watching videos, sweeping, and walking or wheeling. The study found that both monitors were able to detect differences in activity levels between tasks and showed similar results. This suggests that either monitor could be used to study physical activity patterns in people with SCI.

Study Duration
One lab visit (90 minutes)
Participants
38 (19 with SCI, 19 age- and sex-matched controls)
Evidence Level
Not specified

Key Findings

  • 1
    Both monitors demonstrated significantly different increasing physical activity levels with higher intensity tasks.
  • 2
    Agreement was high between monitors across tasks (interclass correlation coefficients = .78–.97).
  • 3
    Participants with spinal cord injury had similar activity counts within tasks compared with controls except for walking–wheeling.

Research Summary

This study compared two wrist-worn accelerometers (Actiwatch Score and PRO-Diary) in people with and without spinal cord injury (SCI) during laboratory tasks simulating everyday physical activities. The results showed high interunit reliability between the two monitors across tasks, suggesting they are consistent with each other. Both monitors demonstrated good construct validity, measuring significantly different activity counts across tasks and showing higher activity counts for wheelchair ambulation compared to walking.

Practical Implications

Assessment of Activity Levels

Occupational therapists can use these wrist-worn accelerometers to assess individual activity levels in people with and without SCI.

Intervention Development

Understanding activity patterns can help in developing tailored interventions to increase physical activity in daily life.

Symptom Monitoring

These monitors can also be used to examine momentary associations between physical activity and symptom experience, providing insights into barriers and facilitators of activity engagement.

Study Limitations

  • 1
    The study did not compare the accelerometers with a criterion measure of physical movement or calorie expenditure.
  • 2
    All participants underwent the protocol of tasks in the same order, potentially introducing fatigue bias.
  • 3
    The study acknowledges that the scaling between the two monitors is different, meaning they cannot be directly compared.

Your Feedback

Was this summary helpful?

Back to Spinal Cord Injury