Oct/09
4
Testing Methods
Posted by SB
Lab testing was conducted by:
Neil Reed, Orthotist, working under the direction of Dr.Thomas R. Palmer, DPM at Oregon Foot Clinic, 6108 NE Glisan, Portland, OR.
All tests were conducted using the same criteria.
- The same shoes were used in each test by the same test subject
- Walking test on a treadmill at 3.5 mph.
- All scaling done at the same levels
How was the ball-drop test conducted?
A steel ball measuring 1″ in diameter and weighing 2.5 ounces was dropped from a height of 36″ through a clear acrylic tube onto the heel portion of the insole to be tested. To eliminate any spring in the surface upon which the test was to be conducted, the insole was placed on a 3/16″ thick steel plate measuring 4″ x 11¼”. This steel plate was then placed on a 3/8″ thick piece of acrylic measuring 8″ x 14″.
