Based on the linked source; automatically prepared and checked against the original report.
Study population and measures
Researchers used the public 8th Size Korea survey to derive sex-specific percentiles for 26 seated measurements, two functional reaches and hand strength among 338 wheelchair users with spinal cord injury. The participants included 246 men and 92 women. Nineteen dimensions were compared with an age-adjusted general-adult sample aged 40 to 69.
Differences from general-adult data
Seated heights among wheelchair users were 9% to 27% lower than in the general sample, which was measured in an instructed erect posture. Trunk circumference and breadth were larger, while upper-limb lengths differed modestly and lower-body seated dimensions were shorter. The differing posture protocols prevent exact between-sample comparison.
Potential design relevance
Under plausible seat heights, the work-surface height accommodating 90% of users fell below common accessible work-surface ranges. Also, 8.3% of men produced no grip force. The authors say the reference percentiles may inform adjustable assistive technology, accessible design and low-force non-grasp interfaces, pending task-based validation.
