Responsiveness, Minimal Clinically Important Difference, and Predictive Validity of the ArmCAM in Stroke Rehabilitation: A Remotely Delivered Upper Extremity Function Assessment.
Arch Phys Med RehabilMay 23, 2026 (epub)
Clinical ResearchPhysical Medicine & Rehabilitation
Chieh-Ling Yang, Chien-Hung Chen, Lisa A Simpson et al.
✦ AI-curated · Sources linked
In 30 seconds
This randomized controlled trial evaluated the Arm Capacity and Movement Test (ArmCAM) for assessing upper extremity function in 62 stroke patients undergoing rehabilitation. The study found that ArmCAM had high responsiveness (SRM=0.92) and provided minimal clinically important difference (MCID) estimates of 3.3, 2.5, and 2.7 for various scales, indicating its utility in telerehabilitation settings.
Key findings
- ArmCAM showed high responsiveness with a standardized response mean of 0.92.
- Anchor-based MCID estimates were 3.3 for the REACH Scale and 2.5 for the SIS Hand Function Domain.
- Baseline ArmCAM scores had a moderate predictive validity for posttest REACH Scale scores (ρ=0.61).
- Fair predictive validity was observed for SIS Recovery Scores with a correlation of ρ=0.44.
Why it matters
Understanding the responsiveness and MCID of assessment tools like ArmCAM is crucial for clinicians to evaluate treatment effectiveness in stroke rehabilitation. This can enhance patient care in remote settings.