ClipArt ETC
A man exercising with the abdominal stool.

Abdominal Stool

A man exercising with the abdominal stool.

A man exercising with the abdominal table.

Abdominal Table

A man exercising with the abdominal table.

"Lie flat on the back...hands clasped behind head. Pull up to sitting position." -Foster, 1921

Exercise

"Lie flat on the back...hands clasped behind head. Pull up to sitting position." -Foster, 1921