Stethograph and Tambour :
The combination of these two items is used to record respiratory patterns, i.e rate, rhythm and amplitude during conditions :During * Talking
* After Walking
* Breath Holding
* Hyper Ventilation
Use the Frontal Writing Point with Aluminum Stem and fixed the Kymograph Speed No: 3. and normal respiration, using two sets it is also possible to study chest and abdominal movements simultaneously under a variety of circumstance. (See drawing below).