With a good-sized room, and open windows, the air may be pure, while the exercise will prove the occasion of a thorough ventilation of the house.
I am indebted to Friedrich Robert Nitzsche of Dresden for the drawings of the accompanying cuts. His works are invaluable.
Fig. 1.
Fig. 1. Assistant, standing behind the patient, grasps his hands. Patient draws up the hands, as shown in the dotted lines, assistant resisting. Patient forces his hands back again to the first position, assistant resisting. Repeat five times.
In this, as in the other exercises advised, the resistance should be adapted to the patient's strength.
Fig. 2.
Fig. 2. Assistant, standing behind the patient, who is seated, grasps his uplifted hands. Patient draws down the hands, as shown by the dotted lines, assistant resisting. Patient forces the hands back to the first position, assistant resisting. Repeat three times.