Solutions
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iteachob's post in Understanding TOCO Monitor (Tocodynamometer): How to Monitor and Read Contractions was marked as the answerUnless you have INTERNAL uterine pressure monitoring, the intensity of the contraction is pretty meaningless. The external toco is affected by how tight it is applied. Apply it tightly and the height of the contraction "appears" higher (stronger)...apply it loosely, and the height will be lower ("appear" milder). The external toco is good for duration, and frequency of contractions but not all that useful for accurate measurement of intensity.
Hope that answers your question.