Kathy Burwell

METRICS

 
Reach Zone Diagram
 
 
Normal Reach Zone
Area that can be reached with a sweep of the forearm with elbow at waist and upper arm in alignment with torso.
Does not exceed 15 inches.
 
 
Extended Reach Zone
Area that can be reached by extending the arm from the shoulder
Does not exceed 20 inches.
 
 
Optimum Work Area
Area within Reach Envelope best suited for task performance.
Area starts 1-3 inches from the edge of desk and measures 10 x 10 inches.
 
Primary Work Zone
Area between shoulder and hips.
May very slightly based on individual size.
 
Sources
Your Reach Envelope | ergotmc.gtri.gatech.edu | 2003
Human Factors Engineering & Design, Sanders & McCormick, 1987
 
COPYRIGHT 2018 KATHY BURWELL