"Lie flat on the back. Raise first one leg and then the other to a perpendicular position." -Foster, 1921

Exercise

"Lie flat on the back. Raise first one leg and then the other to a perpendicular position." -Foster,…

"Raise and lower both legs. Continue until mildly tired. This is an excellent exercise for the abdominal muscles." -Foster, 1921

Exercise

"Raise and lower both legs. Continue until mildly tired. This is an excellent exercise for the abdominal…

"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

"Stand erect, arms outstretched to the side horizontally. Twist to left as far as possible, then twist to the right."

Exercise

"Stand erect, arms outstretched to the side horizontally. Twist to left as far as possible, then twist…

"Hands on hips. Bend first to right as far as possible. Then repeat to the left." -Foster, 1921

Exercise

"Hands on hips. Bend first to right as far as possible. Then repeat to the left." -Foster, 1921

"Stretch hands overhead. Bend back as far as possible, repeating until tired. Alternate by bending forward and trying to touch toes." -Foster, 1921

Exercise

"Stretch hands overhead. Bend back as far as possible, repeating until tired. Alternate by bending forward…